Language：Japanese   Publisher：(株)文光堂  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD  

Many college students experience daytime sleepiness. Daytime sleepiness is reportedly associated with poor academic performance, suicide, depression, and traffic accidents. This parallel-group randomized controlled trial study aimed to examine the effect of self-care using transcutaneous vagus nerve stimulation (taVNS) in college students with sleepiness and depression. Thirty-four college students (age 21.5 +/- 0.1 years, 21 men and 13 women) were assigned to a control or taVNS group. For taVNS, an electro-stimulator was used to deliver 100 Hz pulses at an intensity below each participant's pain threshold (3.0-8.0 mV) for 30 min. taVNS was performed 30 min before bedtime every day for 28 days. Daytime sleepiness, depression, study engagement, and sleep quality were measured using the Japanese version of the Epworth Sleepiness Scale (ESS-J), Japanese version of the Beck Depression Inventory-II (BDI-II-J), Japanese version of the Utrecht Work Engagement Scale for Students (UWES-S-J), Japanese version of the Pittsburgh Sleep Quality Index (PSQI-J), and Silmee (TM) Bar Type Lite. Autonomic nervous system activities were measured using high-frequency (HF) and low-frequency (LF) components of heart rate variability. Parasympathetic and sympathetic nervous system activities were indicated by the HF value and LF/HF ratio, respectively. The change in each group from day 28 to day 1 was calculated and analysed. The ESS-J, BDI-II-J, UWES-S-J, and PSQI-J (sleep quality and daytime dysfunction) scores improved, and the LF/HF ratio decreased in the taVNS group compared with the control group. Self-care using taVNS suppresses the sympathetic nervous system during sleep, which may improve sleep quality, daytime sleepiness, depression, and study engagement.

DOI： 10.1080/17450128.2023.2196097

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Language：Japanese   Publisher：(一社)日本疼痛学会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Georg Thieme Verlag KG  

Abstract

This systematic review aimed to identify sports injury surveillance systems (ISSs) and injury surveillance guidelines (ISGs) developed and currently used in Japan. Additionally, the extent to which ISSs and ISGs developed overseas are employed in Japan was also examined. A systematic search of electronic databases was performed in March 2021. Prospective studies that investigated sports injuries and targeted Japanese athletes or sports in Japan were included to identify the following: (1) details of the ISSs or ISGs developed among sports in Japan, and (2) characteristics of studies focusing on sports in Japan employing ISSs or ISGs developed overseas and the method of use. A total of five ISSs developed among sports in Japan were included, most of which were based on insurance benefits or condolence payment systems. In total, 23 studies used ISSs or ISGs developed overseas, more than half of which were used as a resource for the development of other data collection tools or methods, indicating that the definition of injury and/or classification of items are modified based on the needs among sports in Japan. This review highlights the necessity of establishing club-based or organisational ISSs and ISGs that are appropriate for sports in Japan.

DOI： 10.1055/a-1836-0526

PubMed

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Language：Japanese   Publisher：Japanese Society for Athletic Training  

Stability training is often carried out in the field of sports to improve performance. Appropriate loading is important in sports rehabilitation. Rehabilitation that ignores progressive characteristics can lead to a variety of reactions, including prolonged return to work and recurrence of injury. Therefore, it is desirable to objectively evaluate the load exerted by each training method. However, the degree of change in muscle activity in response to changes in foot ground contact height and stability when performing front bridge was unknown. Thirty-seven healthy subjects performed six different front bridges with varying foot height and instability. Muscle activity was measured and examined during implementation. Surface electromyography was used to measure the activity of the upper trapezius, lower trapezius, serratus anterior, rectus abdominis, external and internal abdominal oblique muscles, rectus femoris, and tibialis anterior. The rectus abdominis, external oblique abdominis, and internal oblique abdominis muscles showed significantly higher activity under conditions of instability of the foot ground contact surface. The upper trapezius, serratus anterior, external oblique abdominis, and tibialis anterior muscles showed significantly higher activity under conditions with a high foot ground contact surface. The upper trapezius, serratus anterior, external oblique abdominis, and tibialis anterior muscles required significantly higher muscle activity under high foot ground contact conditions. It was also suggested that the trunk muscles required significantly higher muscle activity under conditions where the foot ground contact surface was unstable.

DOI： 10.24692/jsatj.8.1_73

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Language：Japanese   Publisher：Japanese Society for Athletic Training  

The Oslo Sports Trauma Research Center Questionnaire is an athletic epidemiological survey questionnaire targeting “all complaint injuries” (all problems with symptoms). The questionnaire includes questions regarding (1) participation, (2) modified training/competition, (3) performance, and (4) pain (symptoms) due to an injury at specific location or health problems at certain intervals. The prevalence and severity of problems are calculated to monitor changes in these parameters. This paper provides an overview of this questionnaire, its procedures, and major previous studies.

DOI： 10.24692/jsatj.8.1_19

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Publishing type：Research paper (scientific journal)   Publisher：The Japanese Society of Physical Fitness and Sports Medicine  

DOI： 10.7600/jpfsm.11.237

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：MEDICAL ASSOC PHARMACOPUNCTURE INST-MAPI  

BACKGROUND: Exercise therapy is the first choice non-pharmacotherapeutic approach for musculoskeletal pain; however, it often interferes with the implementation and continuation of exercise due to fear-avoidance behaviors. Trigger point acupuncture (TrPAcp) has been reported to reduce musculoskeletal pain. OBJECTIVES: To examine the efficacy of exercise combined with TrPAcp compared to exercise alone for older patients with chronic low back pain (CLBP), the most common subjective symptom reported by old people of both sexes in Japan. METHODS: In this single-center randomized controlled trial conducted at Teikyo Heisei University, 15 men and women aged ≥ 65 years with low back pain for at least 3 months who met the eligibility criteria were included. The Ex+TrPAcp group received exercise and trigger point acupuncture, while the Ex group received only exercise for 3 months. The main outcome, pain intensity, was measured using the numerical rating scale (NRS). Improvement was defined as a decrease in NRS of ≥ 2 or less than moderate (NRS < 4). RESULTS: The analysis included 7 of 8 cases in the Ex+TrPAcp group and 7 of 7 cases in the Ex group. NRS improved in 6 of 7 and 1 of 7 patients in the intervention and control groups, respectively, with a significant difference between groups (p = 0.03, ϕ = 0.71). Regarding adverse events due to acupuncture, one patient (14.3%) complained of heaviness after acupuncture. Nothing specific was reported with exercise. CONCLUSION: Compared with Ex alone, Ex+TrPAcp may be more effective therapy for older people with CLBP who do not have an exercise habit.

DOI： 10.51507/j.jams.2022.15.2.143

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Publishing type：Research paper (scientific journal)   Publisher：The Japanese Society of Physical Fitness and Sports Medicine  

DOI： 10.7600/jpfsm.11.117

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Language：Japanese   Publisher：帝京平成大学  

臨床鍼灸総合実習を履修した本学鍼灸学科3年生67名を対象とし、直接患者に対して施術を行うに足る総合的知識および基本的技能・態度を備えているか評価するため、「基本的はり実技の試験」「基本的きゅう実技の試験」「医療面接・身体診察・臨床推論の試験」「知識および問題解決能力を評価する客観試験」を行った。結果、「基本的はり実技の試験」と「基本的きゅう実技の試験」の成績は、後者で再試験になった学生が1.5%いたが概ね高い評価得点であった。「医療面接・身体診察・臨床推論の試験」の成績は、全7項目の平均得点が6点満点で3.94点であった。「知識および問題解決能力を評価する客観試験」の成績は、平均正答率が42%で、国家試験の合格基準である60%とは18%の差があった。「授業のねらい及び到達目標」の到達度に係る総合評価を行い、その得点が妥当であったか検証するため、1年前期から3年後期までの通算Grade Point Averageとの相関係数を求めたところ、p<0.05で有意となり、相関係数r=0.69でかなり相関があった。

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Language：English   Publishing type：Research paper (scientific journal)  

BACKGROUND: Epidemiological data on sports injuries and illnesses depend on the surveillance methodology and the definition of the health problems. The effect of different surveillance methods on the data collection has been investigated for overuse injuries, but not for other health problems such as traumatic injuries and illnesses. PURPOSE: The purpose of this study was to investigate the new surveillance method developed by the Oslo Sports Trauma Research Center (OSTRC), which is based on any complaint definition (new method), to identify health problems compared with the traditional surveillance method, which is based on time loss definition. STUDY DESIGN: Descriptive epidemiology study. METHODS: A total of 62 Japanese athletes were prospectively followed-up for 18 weeks to assess differences in health problems identified by both new and traditional methods. Every week, the athletes completed the Japanese version of the OSTRC questionnaire (OSTRC-H2.​JP), whereas the teams' athletic trainers registered health problems with a time loss definition. The numbers of health problems identified via each surveillance method were calculated and compared with each other to assess any differences between their results. RESULTS: The average weekly response rate to the OSTRC-H2.​JP was 82.1% (95% CI, 79.8-84.3). This new method recorded 3.1 times more health problems (3.1 times more injuries and 2.8 times more illnesses) than the traditional method. The difference between both surveillance methods' counts was greater for overuse injuries (5.3 times) than for traumatic injuries (2.5 times). CONCLUSIONS: This study found that the new method captured more than three times as many health problems as the traditional method. In particular, the difference between both methods' counts was greater for overuse injuries than for traumatic injuries. LEVEL OF EVIDENCE: 2b.

DOI： 10.26603/001c.37852

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Language：Japanese   Publisher：The Japan Society of Acupuncture and Moxibustion  

DOI： 10.3777/jjsam.72.47

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Other Link： https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18K09982/

Language：English   Publishing type：Research paper (scientific journal)   Publisher：Edizioni Minerva Medica  

BACKGROUND: Although it is evident that the risk of injury in handball varies according to player position, it is unclear whether the characteristics of these injuries also differ. The aim of this study was to characterize and compare the position-associated injury profiles of university handball players in Japan. METHODS: A total of 2056 participants who played in the 2018 and 2019 Japanese National University Handball Championships were included in this cross-sectional study. A self-reported injury questionnaire regarding demographic and injury-related information was administered. RESULTS: The overall prevalence of injury during the one-year period preceding the questionnaire was 44.1%, and back (47.9%) and line (49.2%) players exhibited a higher proportion of injuries than players in other positions (P<0.001). The ankle, knee, and shoulder/clavicle were the most common body regions affected by traumatic injuries, and knee and shoulder/clavicle injuries differed based on player positions (P=0.033). Conversely, overuse injuries predominantly affected the lumber spine/lower back, knee, and foot/toe, although there were no significant differences between player positions (P=0.188). In terms of injury mechanism, line players exhibited a higher proportion of contact injuries and goalkeepers had a higher proportion of non-contact injuries than that of other positions (P<0.001). CONCLUSIONS: Back and line players experienced more injuries than players in other positions. Depending on the player position, there were significant differences in the prevalence and patterns of injury. Therefore, injury prevention measures need to consider the characteristics of injuries based on player positions.

DOI： 10.23736/s0022-4707.21.12998-6

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：National Institute of Industrial Health  

To evaluate whether financial aid for acupuncture therapy is beneficial for non-manufacturing job workers (office workers) who are aware of reduced job performance due to health issues (presenteeism), a four-wk pragmatic multicenter randomized controlled trial was conducted with office workers who were aware of their presenteeism. The control group only implemented the workplace-recommended presenteeism measures, whereas the intervention group received financial aid for acupuncture therapy of up to 8,000 JPY (Japanese yen) in addition to implementing the presenteeism measures recommended by each workplace. The major outcome measure was the World Health Organization Health and Work Performance Questionnaire relative presenteeism score. A total of 203 patients were assigned to the intervention (n=103) and control (n=108) groups. The intervention group underwent a median of 1.0 (interquartile range [IQR], 1.0 to 2.0) sessions of acupuncture for neck disorders (64%), back disorders (16%), and depressed mood/anxiety/irritation (5%), among others. Results showed that the intervention group had slightly better job performance than the control group (effect size [r]=0.15, p=0.03). Financial aid for acupuncture therapy may help compensate for losses incurred by enterprises in the form of 14,117 JPY per worker a month.

DOI： 10.2486/indhealth.2021-0186

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Language：Japanese   Publisher：(一社)日本疼痛学会  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Informa UK Limited  

The aim of this study was to examine the injury profile of Japanese university handball players. In this cross-sectional study, a total of 1017 participants who played in the 2018 Japanese National University Handball Championship were followed. The incidence within the previous year was 0.59 [95% CI, confidence interval: 0.56-0.62] per player per year. The ankle (33.3%), knee (23.6%), and shoulder/clavicle (12.6%) were the body regions most affected by traumatic mechanisms, while the lumbar spine/lower back (26.0%), knee (15.7%), and shoulder (15.0%) were the body regions most affected by overuse mechanisms. Sprain (30.7%), ligamentous rupture (23.2%), and fracture (11.8%) were the main types of traumatic injuries, and stress fracture (25.0%) and lesion of meniscus or cartilage (25.0%) were the main types of overuse injuries. Female players were 1.5 times more likely (OR, odds ratio: 1.55 [95% CI: 1.20-2.01]) to experience an injury than their male counterparts, and line players were also 1.5 times more likely (OR: 1.49 [95% CI: 1.00-2.21]) to experience an injury than their wing counterparts. This study showed that there is a need for increased injury prevention efforts in Japanese handball, especially among female players.

DOI： 10.1080/15438627.2021.1937164

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：NORTH AMER SPORTS MEDICINE INST-NASMI  

Background: A forefoot strike (FFS) could be a safer landing technique than a rearfoot strike (RFS) during a cutting motion to prevent anterior cruciate ligament (ACL) injury. Purpose: This study aimed to determine the joint angles, ground reaction force (GRF), and muscle activity levels associated with FFS and RFS landings during 180° turns. Study design: Cross-sectional study. Methods: Fourteen male soccer players from the University of Tsukuba football (soccer) club participated in this study. The FFS consisted of initial contact with the toes on the force plates followed by the rearfoot; meanwhile, the initial contact was performed with the heels on the force plates followed by the forefoot for the RFS. Ankle, knee, and hip joint angles were recorded using a three-dimensional motion capture system. GRFs were measured using a force plate. Gluteus medius (GM), rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), semitendinosus (ST), biceps femoris (BF), tibialis anterior (TA), and lateral gastrocnemius (GL) activities were measured by electromyography. Results: The activities of GM, GL, and ST from initial contact to early periods during landing into the ground with the FFS are larger than those with RFS. In addition, the results showed significant differences in lower-limb angles and GRFs between the FFS and RFS. Conclusion: These results suggest that there might be differences in ACL injury risk during a 180° turn between the FFS and the RFS pattern. An investigation into the grounding method that prevents injury is necessary in future studies. Levels of Evidence: Level 3b.

DOI： 10.26603/001c.23551

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：The Japan Society of Acupuncture and Moxibustion  

[Objective]To investigate the effects of acupuncture on sports activities of athletes
[Methods]A total of 1,804 athletes were targeted. The method used was a collective survey. Questionnaires were administered after obtaining consent from the participants; online questionnaires were also provided. The questionnaire evaluated profile (sex, age); sensation immediately after acupuncture treatment, duration of stimulus sensation, stimulus intensity, stimulus sensation, and therapeutic effect; timing of acupuncture treatment; and questions related to acupuncture as to whether the acupuncture caused any adverse effects on play (movement) or showed any positive effects.
[Results]In total, 1,525 (84.5%) valid responses were obtained. The survey analyzed 841 subjects (55.1%) who underwent acupuncture. The most common response after acupuncture treatment was that the subjects felt lighter and were able to move more easily; 43.9% of subjects gave this response. In addition, 10.6% of respondents said that they continued to feel pain similar to the sensation during acupuncture treatment and 7.7% said they felt weak. The most common response at 59.8% was that the sensation felt during acupuncture disappeared quickly after treatment was ended, 58.6% of subjects said that the sensation felt after acupuncture was optimal, and 48.3% responded that the sensation from treatment remained and a positive effect was observed. The most common timing for receiving acupuncture for 21.8% of subjects was after practice or a match:
[Discussion and Conclusion]Acupuncture for athletes should be performed according to the guidelines, taking into account the competition schedule and type of competition and the appropriate amount of acupuncture stimulation, thereby preventing problems during competition.

DOI： 10.3777/jjsam.71.76

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2021&ichushi_jid=J00776&link_issn=&doc_id=20210602050001&doc_link_id=10.3777%2Fjjsam.71.76&url=https%3A%2F%2Fdoi.org%2F10.3777%2Fjjsam.71.76&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_3.gif

Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：TAYLOR & FRANCIS LTD  

This study aimed to examine lower limb kinematics during a side-cutting task in male collegiate soccer athletes with severe ankle laxity. Forty-seven participants with a history of ankle sprains and perceived ankle instability were categorized into non-laxity (n = 17), laxity (n = 19), and severe laxity (n = 11) groups using stress radiography tests. Three-dimensional kinematic data during the stance phase of a 45° side-cutting task were analysed. The frontal plane kinematics of the knee significantly differed between the three groups (p < 0.05). The severe laxity group exhibited a greater abduction angle than the non-laxity group (p < 0.05). The horizontal and sagittal plane kinematics of the rearfoot differed between the three groups during the end of the stance phase (p < 0.05). Our data suggest that collegiate soccer athletes with both perceived ankle instability and severe ankle laxity exhibit greater knee abduction movement during a 45° side-cutting task compared to those with only perceived ankle instability.

DOI： 10.1080/15438627.2021.1917407

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

OBJECTIVE: Although the incidence and pattern of injuries in youth handball have widely been investigated, it is unclear whether the characteristics of injuries differ on the basis of player position. This study aimed at revealing the player position-based injury profile in Japanese youth handball players. DESIGN: Cross-sectional. SETTING: Injury questionnaire. PARTICIPANTS: Overall, 2377 participants who played in the 2018 and 2019 Japanese National High School Handball Championships were included. MAIN OUTCOME MEASURES: Prevalence, body region, type, severity, and mechanism of injuries were collected through a questionnaire. RESULTS: The overall prevalence of injury within the previous year was 46.7%, and the proportion of back players (52.8%) who sustained at least one injury was higher than that of players in other positions (p < 0.001). Differences in player positions were found among overuse injuries by body region, with a higher proportion of the lower leg and knee in wings and backs, respectively (p = 0.047). Among traumatic injuries, a higher proportion of ligamentous rupture in backs and fracture in lines were seen (p = 0.011). CONCLUSION: There were significant differences in the prevalence and patterns of injuries between player positions. Therefore, injury prevention programmes should consider the characteristics of player positions.

DOI： 10.1016/j.ptsp.2021.03.016

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Language：Japanese   Publisher：(一社)日本柔道整復接骨医学会  

橈骨遠位端骨折非転位例における補助診断として、単純X線写真でのpronator quadratus sign(以下PQS)がある。PQSとは前腕遠位掌側における方形回内筋の表層に位置した脂肪層(fat pad)が骨折などの出血で浮き上がる兆候である。本研究の目的は超音波診断装置を用いて、PQSを同定し描出することである。対象者は、上肢に外傷の既往がない大学生7名(19.1±0.4歳)の右7手とした。右手関節部側面像の単純X線写真の撮影を行いPQSを同定したあと、同部に超音波診断装置aplioMX(TOSHIBA製)を用いて、PQSを撮像できるか検討した。全対象者にPQSの撮像が可能であった。前腕回内回外中間位が一番描出しやすいが、前腕回外位でのPQSの描出は5名(71.4%)が低エコー像となり、2名(28.6%)が高エコー像であった。(著者抄録)

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：PUBLIC LIBRARY SCIENCE  

Monitoring the health of athletes is important for their protection, and questionnaires such as those produced by the Oslo Sports Trauma Research Center (OSTRC) are a valuable tool in this process. In 2020, several changes were made to the OSTRC questionnaires (OSTRC-O, OSTRC-H), including changes to the wording, structure, and logic of the original questionnaires. In the present study, the Japanese versions of the OSTRC questionnaires (OSTRC-O.JP, OSTRC-H.JP) were revised to meet the requirements of the updated versions and to analyse new and previously collected data to illustrate the impact of the changes on Japanese athletes. Proposed changes were categorized as minor or more substantial; minor changes were effected to the questionnaire instructions and to the wording of all four questions, and more substantial changes were made to the wording of question 2. The updated questionnaires also included changes to questionnaire logic and answer categories. To assess the consequences of the changes to the wording of question 2, 101 athletes were asked to complete the OSTRC-H.JP, which included both the original and updated versions of question 2, over 10 consecutive weeks. We calculated the number of health problems identified when new gatekeeper logic was and was not applied, using 1585 OSTRC-H.JP responses to assess the consequences of the changes to the questionnaire logic. The kappa coefficient, which measures the level of agreement between the responses to question 2 of the original and updated versions, was high. By applying gatekeeper logic, there was a remarkable reduction in the number of injuries and illnesses among all health problems but less reduction in substantial health problems and time loss health problems. These changes will make it easier for Japanese athletes to complete the questionnaires and improve the quality of collected data.

DOI： 10.1371/journal.pone.0249685

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Language：Japanese   Publisher：(一社)日本疼痛学会  

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Language：Japanese   Publisher：日本自律神経学会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：CHURCHILL LIVINGSTONE  

OBJECTIVES: To investigate whether ankle joint laxity alone influences lower limb kinematics during a side-cutting task. DESIGN: A cross-sectional study. SETTING: Sports medicine research laboratory. PARTICIPANTS: In total, 66 male collegiate soccer players with history of ankle sprains with no perceived ankle instability were categorised into three groups: no-laxity copers (n = 26), laxity copers (n = 23), and severe-laxity copers (n = 17). MAIN OUTCOME MEASURES: The hip, knee, ankle, rearfoot, midfoot, and forefoot kinematic data during the stance phase (0%-100% indicated initial contact to take-off) of a 45° side-cutting task were analysed using one-dimensional statistical parametric mapping. RESULTS: The horizontal plane kinematics of the rearfoot differed significantly among the three groups during 30%-91% of the stance phase (P < .05). Severe-laxity copers exhibited a greater external rotation angle than no-laxity copers during 6%-14% and 32%-92% of the stance phase (P < .05). CONCLUSION: Our data suggest that severe ankle joint laxity affects rearfoot horizontal plane kinematics in individuals without perceived ankle instability performing a 45° side-cutting task. These findings could be used by clinicians in developing rehabilitation programs to prevent further ankle sprains in patients with severe ankle joint laxity.

DOI： 10.1016/j.ptsp.2020.08.012

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

BACKGROUND: Understanding lower limb kinematics and postural control in different directions of single-leg landings is critical to evaluate postural control and prevent lower limb injuries. However, foot and ankle kinematics and postural control during single-leg landings in different directions are less known. RESEARCH QUESTION: Does the difference in the direction of single-leg landing affect the foot kinematics on the frontal plane and dynamic postural stability? METHODS: A cross-sectional study was conducted. Forty-nine male collegiate soccer players performed single-leg forward (FL), 45° lateral (LL), and medial (ML) direction landings. The lower limb, foot (rearfoot, midfoot, forefoot), and ankle kinematics during an impact phase were evaluated, and a curve analysis was performed using a statistical parametric mapping method to compare the three landings. The three landings were compared in terms of postural control parameters, including time to stabilization (TTS), peak of ground reaction forces (GRFs), root-mean-square of the mediolateral GRFs for 0-0.4 s (GRFML0.4), loading rate, and magnitude of horizontal GRFs from 0-0.4 s (HGRF-0.4), 0.4-2.4 s (HGRF-2.4), and 3.0-5.0 s. RESULTS: Ankle and rearfoot kinematics in LL exhibited smaller eversion and pronation positions than FL and ML (p < 0.01). The TTS-mediolateral (TTS-ML) was longer in the LL than in FL and ML (p < 0.001). The GRFML0.4, HGRF-0.4, and -2.4 in the LL and ML were greater than those in the FL (p < 0.001). SIGNIFICANCE: Directions of single-leg landing affect foot and ankle kinematics and postural stability. Specifically, the LL exhibits more inverted ankle and supinated rearfoot positions, and longer TTS-ML. Thus, the LL may induce stretching of the lateral ankle ligament. These findings can help understand foot kinematics and assess dynamic postural control.

DOI： 10.1016/j.gaitpost.2020.06.007

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Language：Japanese   Publisher：The Japan Society of Acupuncture and Moxibustion  

[Objective] The purpose of this cross-sectional questionnaire-based study is to investigate the challenges of adverse events during treatment by acupuncture and moxibustion to an athlete.
[Methods] In total, 1,804 subjects, including athletes who participated in marathons and university athletes were enrolled in this study. The survey was conducted by distributing the questionnaire or via online questionnaire to the athletes who fit the criteria for the study. The questionnaires were collected after consent was received from the participants; online questionnaires were also collected. The questionnaire was examined for age, sex, and type of competition, purpose of the acupuncture treatment and the actual effects, and treated area, content of adverse event, number of times the subjects received acupuncture, and informed consent, and free description of adverse events.
[Results] In total, 1,525 (84.5%) valid responses to the questionnaires were received. The survey analyzed 841 subjects (55.1%) who experienced acupuncture and moxibustion. The following responses about adverse events of acupuncture were obtained: "pain at time of needle insertion"; 17.0%, "subcutaneous-bleeding"; 10.1% and "pain and feeling of heaviness due to the needle": 10.0%, among others. For moxibustion, responses included "burns"; 5.9% and "malaise"; 5.8%, among others. In the free description, there were 17 descriptions of discomfort due to excessive stimulation and difficulty in movement during exercise. Of the questions regarding whether or not they received informed consent, 215 were received orally (25.6%), 34 were received in written form (4.0%), 99 were received both orally and in written form (11.8%).
[Discussion and Conclusion] Acupuncture for athletes causes a certain rate of adverse events. It was suggested that guidelines for athletes to receive acupuncture safely and training and education for practitioners are important.

DOI： 10.3777/jjsam.70.14

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2020&ichushi_jid=J00776&link_issn=&doc_id=20200323040002&doc_link_id=10.3777%2Fjjsam.70.14&url=https%3A%2F%2Fdoi.org%2F10.3777%2Fjjsam.70.14&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_3.gif

Language：English   Publishing type：Research paper (scientific journal)   Publisher：PUBLIC LIBRARY SCIENCE  

This study aimed to translate and culturally adapt the Oslo Sports Trauma Research Center Overuse Injury Questionnaire (OSTRC-O) and the Oslo Sports Trauma Research Center Questionnaire on Health Problems (OSTRC-H) into the Japanese context. The validity and reliability of these translated questionnaires examining overuse injuries and health problems among Japanese university athletes were also examined. The translation was performed following an internationally recognized methodology. A total of 145 athletes were tracked over 10 consecutive weeks and four questions were added in the 10th week to examine the questionnaires' content validity. Test-retest analysis for reliability was performed 24-72 hours after the 10th week of registration. Internal consistency was determined by calculating Cronbach's a during the cohort study. No major disagreements were found in the translation process. The translated questionnaires had high acceptance and compliance, with an average response rate of over 80% throughout the 10-week cohort study. Most participants reported that the questionnaires were not difficult to complete, there were no items they wanted to change or add, and that the web-based technique worked effectively. Good test-retest reliability and high internal consistency was observed in the translated questionnaires. The translated questionnaires were found to be valid, reliable, and acceptable for medically monitoring Japanese athletes.

DOI： 10.1371/journal.pone.0242993

PubMed

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Language：Japanese   Publisher：The Japan Society of Acupuncture and Moxibustion  

[Background] Presenteeism, defined as the practice of sick workers who come to work, and whose work performance effectiveness has been reduced due to various signs and symptoms, causes a significant financial loss to companies. However, comprehensive and effective occupational health countermeasures have not yet been presented. Therefore, we report here the results of an interim analysis to determine whether an allowance for acupuncture treatment is beneficial for workers' presenteeism.
[Methods] A four-week randomized intergroup comparative study was conducted on office workers who were aware of their presenteeism. Participants were allocated to either the control group, in which regular recommended presenteeism countermeasures for each workplace were implemented arbitrarily, or to the intervention group in which an allowance of up to 8,000 was given for acupuncture treatment, in addition to the usual arbitrary measures. The primary endpoint was the WHO-HPQ relative presenteeism score: a score lower than 1 indicates lower work performance; and it was analyzed with the "full analysis set" population.
[Results] A total of 52 patients were assigned to the intervention group (n = 30) and the control group (n = 22). On average, the intervention group received acupuncture treatments 1.4 times for stiff neck and shoulders (67%), lower back pain (26%), depression (5%), and allergies (2%), and paid a total of 7,219; and 6,556 was paid as an expense allowance. As a result, the relative presenteeism score was 0.95 in the intervention group, compared to 0.91 in the control group, with a between-group difference of 0.04 (ES (r) = 0.22, P = 0.12).
[Conclusions] With a total of up to 8,000 offered to office workers who were aware of their presenteeism, an acupuncture treatment allowance for a four-week period was provided 1.4 times on average. The results suggested that the treatment allowance would increase workers' performance efficiency by about 4% (equivalent to 19,691 per person) compared to those without it.

DOI： 10.3777/jjsam.69.254

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：CHURCHILL LIVINGSTONE  

OBJECTIVE: To examine the lower limb kinematics and muscle activities in diagonal single-leg rebound jump in soccer players with chronic ankle instability (CAI). DESIGN: Cross-sectional study. SETTING: Laboratory. PARTICIPANTS: Thirty male collegiate soccer players participated: 15 with CAI were compared with 15 without CAI, matched by physical description. INTERVENTION(S): In the diagonal single-leg rebound jump, participants stood on one leg on a 30-cm high box, hopped down diagonally (45°) onto a force plate, and jumped vertically as high as possible with hands on their hips. MAIN OUTCOME MEASURES: Hip, knee, and ankle kinematics were acquired using a motion capture system. The activity of the gluteus medius, hip adductor, and lower leg muscles was recorded using electromyography. Jump performance was calculated using a force plate. RESULTS: The CAI group had (i) decreased hip adduction, knee flexion, external rotation, and dorsiflexion angle; (ii) reduced hip adductor and peroneus muscle activations; and (iii) reduced jump height and short flight time. CONCLUSIONS: Male collegiate soccer players with CAI showed altered kinematics and muscle activities during a diagonal single-leg rebound jump; this may adversely affect rebound jump performance.

DOI： 10.1016/j.ptsp.2018.08.003

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Churchill Livingstone  

OBJECTIVE: The purpose of this study was to investigate the association between Cumberland Ankle Instability Tool (CAIT) scores and postural stability during a diagonal landing, and to investigate whether postural stability is altered in collegiate soccer players with and without functional ankle instability (FAI). DESIGN: Cross-sectional study. SETTING: Laboratory. PARTICIPANTS: Ninety-one soccer players were classified into a FAI group (history of at least two ankle sprains and a CAIT-Japanese version score ≤25, n = 28), a copers group (history of one ankle sprain and a CAIT-Japanese version score ≥26, n = 32), or a control group (no history of ankle sprain, n = 31). MAIN OUTCOME MEASURES: Time to anteroposterior stabilisation (TTSAP) and mediolateral stabilisation (TTSML) were measured during the diagonal single-leg landing. RESULTS: The CAIT scores were correlated with TTSAP (P < 0.05, rs = -0.214) and TTSML (P < 0.01, rs = -0.566). TTSAP was longer in the FAI group than in the control group, and TTSML was longer in the FAI group than in the other groups. CONCLUSIONS: Our findings indicate the presence of an association between the CAIT-J score and TTSML, as well as postural stability deficits in collegiate soccer players with FAI during diagonal landings.

DOI： 10.1016/j.ptsp.2018.03.002

Scopus

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：BMJ PUBLISHING GROUP  

BACKGROUND: The autonomic nervous system and trigeminal nerve are involved in adjusting flow through diverging cerebral arteries in the prefrontal cortex. The purpose of this study was to examine the effect of 100 Hz electroacupuncture (EA) to the trigeminal nerve area on cerebral blood flow and autonomic nervous system function. METHOD: This was a randomised crossover study of 16 healthy volunteers who were assigned to an EA or control group. Stimulation (in the EA group) was performed five times, each after 1 min of rest. Needles were inserted at the inner edge of the eyebrows and 1 cm from the front hairline midpoint. We used high-frequency (HF) and low-frequency (LF) components of heart rate (HR) variability to assess autonomic nervous system function. HF and LF/HF ratio were taken as indicators of parasympathetic and sympathetic nervous system activity, respectively. We measured cerebral blood flow using a two-channel near-infrared spectroscope. RESULTS: In the EA group, HR significantly decreased (p=0.004) and HF significantly increased (p=0.006) relative to baseline. By contrast, there were no significant changes in HR or HF within the control group (p>0.05). Accordingly, HR tended to be lower (p=0.087) and HF greater (p=0.071) in the EA group versus the control group. There were no significant differences in LF/HF ratio within/between groups. Compared with the control group, cerebral blood flow was significantly greater in the left (p=0.048) and right (p=0.016) prefrontal cortex in the EA group. CONCLUSIONS: Delivery of 100 Hz EA to the trigeminal nerve area reduces HR and increases parasympathetic nervous activity and cerebral blood flow.

DOI： 10.1136/acupmed-2016-011247

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：AMER PHYSICAL THERAPY ASSOC  

BACKGROUND: Single-legged drop jumps (SDJ), single-legged repetitive jumps (SRJ), and single-legged side hops (SSH) are often used as plyometric training and functional performance tests. Differences in the kinetics and kinematic characteristics of lower extremity joints during these jumps are unclear. HYPOTHESIS/PURPOSE: The purpose of this study was to investigate the joint motion and mechanical work of the takeoff leg from foot contact to foot-off during SDJ, SRJ, and SSH in the sagittal and frontal planes in female athletes. It was hypothesized that the joint motion and mechanical work of the lower extremity joints during the SDJ and SRJ would be larger than the SSH in the sagittal plane, those during the SSH would be larger than the SDJ and SRJ in the frontal plane, and during SRJ would be larger than SDJ. STUDY DESIGN: Cross-sectional study. METHODS: Seventeen female collegiate athletes participated and performed the SDJ (0.15-m box height), and SRJ and SSH (by crossing two lines 0.3 m apart). Three-dimensional coordinate data and ground reaction forces were collected. Contact time, jump height, jump index (i.e., the jump height divided by the contact time) of the SDJ and SRJ, and the total times of the SSH were calculated. Range of motion (ROM) from touchdown to the lowest center of mass, and the positive and negative (mechanical) work from touchdown to foot-off were analyzed. RESULTS: There were no significant differences in jump performance variables. Compared to the SSH, the SDJ and SRJ had significantly larger ankle and knee ROM and positive and negative work at the lower extremity joints, except for positive work at the hip joint, in the sagittal plane (p < 0.05). Compared to the SDJ and SRJ, the SSH had a significantly larger ankle ROM and positive work at the knee joint in the frontal plane (p < 0.05). Compared to the SDJ, the SRJ had a significantly larger ROM and negative work at each lower extremity joint in the frontal plane (p < 0.05). CONCLUSION: Although there were no significant differences in the jump performance variables, different characteristics of the takeoff leg ROM and mechanical work were found between three kinds of rebound-type jump tests. These findings may help clinicians choose jump methods to assess lower extremity function and to design plyometric training programs in sports and clinical fields. LEVEL OF EVIDENCE: 3b.

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：(公社)全日本鍼灸学会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer  

Background: The purpose of this study is to examine the effects of different strike forms, during cutting, on knee joint angle and lower limb muscle activity. Methods: Surface electromyography was used to measure muscle activity in individuals performing cutting manoeuvres involving either rearfoot strikes (RFS) or forefoot strikes (FFS). Three-dimensional motion analysis was used to calculate changes in knee angles, during cutting, and to determine the relationship between muscle activity and knee joint angle. Force plates were synchronized with electromyography measurements to compare muscle activity immediately before and after foot strike. Results: The valgus angle tends to be smaller during FFS cutting than during RFS cutting. Just prior to ground contact, biceps femoris, semitendinosus, and lateral head of the gastrocnemius muscle activities were significantly greater during FFS cutting than during RFS cutting
tibialis anterior muscle activity was greater during RFS cutting. Immediately after ground contact, biceps femoris and lateral head of the gastrocnemius muscle activities were significantly greater during FFS cutting than during RFS cutting
tibialis anterior muscle activity was significantly lower during FFS cutting. Conclusions: The results of the present study suggest that the hamstrings demonstrate greater activity, immediately after foot strike, during FFS cutting than during RFS cutting. Thus, FFS cutting may involve a lower risk of anterior cruciate ligament injury than does RFS cutting.

DOI： 10.1186/s40798-016-0056-x

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Language：English   Publisher：(公社)全日本鍼灸学会  

32名の健康な若年成人男性(平均24.32±2.47歳)を鍼刺激群と対照群に分け、両群に30回の等尺性最大随意収縮から成る消耗運動を行わせた。鍼刺激群には消耗運動前に円皮鍼刺激を行った。消耗運動の前・後に等尺性最大膝伸筋力、筋力の立ち上がり率、力の時間積分値と筋活動(積分筋電図と平均パワー周波数)を測定し、円皮鍼刺激の効果を評価した。二元配置分散分析を行ったところ、介入の主要な効果と、介入×時間相互作用の主要な効果は、最大筋力、筋力立ち上がり率、力の時間積分値と積分筋電図に関して有意であった。以上より、円皮鍼は運動による筋肉疲労を防ぐことが出来ると考えられた。

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：(公社)全日本鍼灸学会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：BMJ PUBLISHING GROUP  

BACKGROUND: A previous study has reported that low-frequency (LF) electroacupuncture (EA) influences salivary secretory immunoglobulin A (sIgA) and the autonomic nervous system (ANS). The ANS is known to control the secretion volume of sIgA; however, the effect of high-frequency (HF) EA on salivary sIgA has not been determined. We investigated whether HF EA affects salivary sIgA levels and the ANS. METHOD: Sixteen healthy subjects were randomly classified into two groups: a control group and an EA group. After a 5 min rest, subjects in the EA group received EA at 100 Hz bilaterally at LI4 and LI11 for 15 min before resting for a further 40 min post-stimulation. Subjects in the control group rested for a total of 60 min. Measurements of the ANS and sIgA levels in both groups were made before, immediately after, 20 min after, and 40 min after rest or 15 min EA treatment. HF and LF components of heart rate variability were analysed as markers of ANS function. LF/HF ratio and HF were taken as indices of sympathetic and parasympathetic nerve activity, respectively. Salivary protein concentrations and sIgA levels were determined by Bradford protein assay and ELISA, respectively. RESULTS: LF/HF ratio was significantly increased immediately after EA. HF was significantly increased at 20 min after EA and sIgA level was significantly increased at 40 min after EA. In addition, HF and salivary sIgA level were positively correlated with each another. CONCLUSIONS: HF EA exerted sequential positive effects on sympathetic nerve activity, parasympathetic nerve activity, and salivary sIgA level (immediately and after 20 and 40 min, respectively). HF EA may increase salivary sIgA levels by influencing parasympathetic nerve activity.

DOI： 10.1136/acupmed-2015-010784

PubMed

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：SPRINGER  

BACKGROUND: The purpose of this study is to examine the effects of different strike forms, during cutting, on knee joint angle and lower limb muscle activity. METHODS: Surface electromyography was used to measure muscle activity in individuals performing cutting manoeuvres involving either rearfoot strikes (RFS) or forefoot strikes (FFS). Three-dimensional motion analysis was used to calculate changes in knee angles, during cutting, and to determine the relationship between muscle activity and knee joint angle. Force plates were synchronized with electromyography measurements to compare muscle activity immediately before and after foot strike. RESULTS: The valgus angle tends to be smaller during FFS cutting than during RFS cutting. Just prior to ground contact, biceps femoris, semitendinosus, and lateral head of the gastrocnemius muscle activities were significantly greater during FFS cutting than during RFS cutting; tibialis anterior muscle activity was greater during RFS cutting. Immediately after ground contact, biceps femoris and lateral head of the gastrocnemius muscle activities were significantly greater during FFS cutting than during RFS cutting; tibialis anterior muscle activity was significantly lower during FFS cutting. CONCLUSIONS: The results of the present study suggest that the hamstrings demonstrate greater activity, immediately after foot strike, during FFS cutting than during RFS cutting. Thus, FFS cutting may involve a lower risk of anterior cruciate ligament injury than does RFS cutting.

DOI： 10.1186/s40798-016-0056-x

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Language：Japanese   Publisher：Japanese Society for Athletic Training  

The functional movement screen (FMS) is an evaluating system which is used during conditioning for injury prevention. A previous study reported improvements in FMS after collective exercise. The purpose of the current study was therefore to examine the relationship between collective exercise and changes in the FMS. A collective exercise program (CEP) was prescribed according to each subject’s FMS results. The subjects were instructed to perform CEP daily, and the FMS was measured after a 13-week intervention period. The results of this study suggest that the implementation of CEP for at least 4 days a week has some beneficial physical effects, including the acquisition of functional movements.

DOI： 10.24692/jsatj.7.1_49

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：The Japanese Society of Physical Fitness and Sports Medicine  

The purpose of this study was to investigate the injury patterns and risk factors of injuries among high school handball players in Japan. A total of 1299 (709 male and 590 female) subjects who played in the 2018 Japanese National High School Handball Championship participated in this study. The questionnaire on injury experience was distributed two weeks before the championship and was collected at the representation meeting the day before the championship. The main results were as follows: 1) The subjects (n=625, 48.1%) reported experiences of injuries in the previous year. Female had significantly more suffer injuries than male. 2) The main body parts of injuries were the ankle, knee, and finger in traumatic injuries and the lower leg, lumber spine/lower back, and knee in overuse injuries. The main types of injuries were sprain, ligamentous rupture, and fracture in traumatic injuries and stress fracture, other bone injuries, and lesion of meniscus or cartilage in overuse injuries. The main cause of injuries was “contact with another athlete”. 3) Age, female players, and back players were associated with increased the occurrences of injuries. Goalkeepers were associated with decreased the occurrences of injuries. These results indicated that a high prevalence of injuries in high school handball players, and it is important to take preventive measures based on age, gender, and player position.

DOI： 10.7600/jspfsm.70.79

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Other Link： http://id.ndl.go.jp/bib/031285540

Language：Japanese   Publisher：日本ハンドボール学会  

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Language：Japanese   Publisher：日本柔道整復接骨医学会  

足関節捻挫の治療では、綿包帯固定をした状態で日常生活を送ることもある。本研究では、足関節捻挫を仮定したモデルを対象に綿包帯固定が歩行立脚期の足底圧中心(center of plantar pressure:COP)に及ぼす影響を検討したので報告する。対象は慢性的に足関節機械的不安定性を有する大学男子サッカー選手8例11足(19.5±0.8歳、170.3±5.2cm、64.4±4.6kg、右5足、左6足)である。幅7.5cm、長さ6mの綿包帯を用いて、底・背屈0度とした足関節に対し、麦穂帯を施行した。裸足と綿包帯固定の2条件下で歩行を行い、足底圧分布測定装置を用いてCOPのデータを収集し、立脚期における影響を検討した。固定前と比べ綿包帯固定後では、立脚中期において内側方向および後方へ有意に移動していた(p<0.05)。足関節不安定性を有する足に対する綿包帯固定は、内反不安定性を減少させた結果、踵接地期の外側接地を改善し、足関節不安定性による足底圧中心の外側偏位を内側へ移動させたと考えられた。(著者抄録)

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Other Link： https://search.jamas.or.jp/link/ui/2021162816

Language：Japanese   Publisher：一般社団法人 日本アスレティックトレーニング学会  

DOI： 10.24692/jsatj.6.supplement_s13

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：Japanese   Publisher：Japanese Association of Exercise Epidemiology  

<b>Objective:</b> Ankle pain is liable to occur among finswimmers. This study aimed to determine relevant factors for ankle pain among competitive finswimmers to prevent ankle injury.

<b>Methods:</b> A questionnaire survey targeted junior high school age and older of all Japanese finswimming championship competitors in 2016 (314 finswimmers). We sent the surveys to all representatives of the targeted competitors, and received 79 valid responses (49 males and 30 females). Ankle pain, history of ankle sprain, feeling of looseness or instability in the ankle, frequency of executing exercises, consciousness of ankle use during finswimming, and subjective onset factors for ankle pain comprised the questionnaire. Binomial logistic regression analysis was used to evaluate associations between ankle pain and nominal and ratio scale items. The significance level was set at 5%.

<b>Results:</b> Among current feeling of looseness or instability in the ankle (n=27), especially, current feeling of looseness or instability in the ankle while using fins (n=23) showed a significantly high association with current ankle pain (n=27) (p<.01, odds ratio 28.5, 95%CI 7.7‒105.9). The most common subjective onset factors for ankle pain was the feeling of looseness in the ankle (n=12/36). History of ankle sprain was also indicated as a subjective onset factor for ankle pain (n=3/36). The executing frequency of trunk exercise was 68.4%, while that of ankle exercise was 26.6%.

<b>Conclusion:</b> Our results revealed that the feeling of looseness or instability in the ankle while using fins was a significant relevant factor for ankle pain caused by finswimming, furthermore, the subjective onset factors for ankle pain suggested that appropriate preventive measures are essential.

DOI： 10.24804/ree.1911

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2020&ichushi_jid=J03973&link_issn=&doc_id=20200421450004&doc_link_id=%2Fez5ekgak%2F2020%2F002201%2F005%2F0035-0044%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fez5ekgak%2F2020%2F002201%2F005%2F0035-0044%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：(公社)全日本鍼灸学会  

【背景】欠勤には至っていないが、様々な徴候や症状で労働遂行能力が低下している労働者の状態(プレゼンティーイズム)が、企業に多額の損失を与えている。しかし、包括的かつ実効性のある労働衛生対策は未だ提示されていない。そこで、鍼治療を含む施術費用への助成が労働者のプレゼンティーイズムに有用であるか中間解析した結果を報告する。【方法】プレゼンティーイズムと自覚しているオフィスワーカーを対象として、4週間のランダム化群間比較試験を行い、各職場において励行されている通常のプレゼンティーイズム対策を任意で行う対照群、通常の対策を任意で行うことに加えて鍼治療を含む施術に要した費用に対して最大8,000円まで助成を受けることができる介入群、のいずれかに割り付けた。主要評価項目はWHO-HPQの相対的プレゼンティーイズム値(1から低下するほど労働遂行能力が低下していることを意味する)で、最大の解析対象集団を対象に解析した。【結果】52例を介入群30例と対照群22例とに割り付けた。介入群では、首や肩のこり(67%)、腰痛(26%)、うつ(5%)、アレルギー(2%)に対して鍼治療を平均1.4回受療して合計7,219円支払い、6,556円の助成を受けた。その結果、相対的プレゼンティーイズム値は対照群0.91に対して介入群0.95で、群間差は0.04(ES(r)=0.22、P=0.12)であった。【結論】プレゼンティーイズムと自覚しているオフィスワーカーに鍼治療の費用に対して4週間に合計最大8,000円助成する、と提示すると平均1.4回受療し、提示しない場合と比べて労働遂行能力が約4%(一人当たり19,691円に相当)向上することが示唆された。(著者抄録)

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2019&ichushi_jid=J00776&link_issn=&doc_id=20191223080002&doc_link_id=10.3777%2Fjjsam.69.254&url=https%3A%2F%2Fdoi.org%2F10.3777%2Fjjsam.69.254&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_3.gif

Language：Japanese   Publisher：(一社)日本柔道整復接骨医学会  

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Language：Japanese   Publisher：(株)文光堂  

CiNii Article

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2019&ichushi_jid=J01715&link_issn=&doc_id=20190826120015&doc_link_id=%2Fag9rsige%2F2019%2F003609%2F016%2F1038b1042%26dl%3D3&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fag9rsige%2F2019%2F003609%2F016%2F1038b1042%26dl%3D3&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_4.gif

Language：Japanese   Publisher：日本疼痛学会  

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Language：Japanese   Publisher：日本疼痛学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

J-GLOBAL

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：Japanese Society for Athletic Training  

Many people routinely have a routine in which they exercise once a week. They should be performed along with the purpose of the training. Stability training is often carried out for enhancement of performance in the field of sports. An appropriate load is important for athletic rehabilitation. Rehabilitation without gradual advancement characteristics can lead to various repercussions such as prolongation of period of return to play and recurrence injuries. It is therefore advisable to objectively assess the load exerted by each training method. However, the degree of alteration of muscle activity on change of the height and instability of feet on performing side bridges was unclear. Seventeen healthy male participants performed four kinds of side bridges (on the stable floor, stable 30cm stand, unstable floor, unstable 30cm stand). Muscle activity was measured and inspected at the time of the enforcement. Activity of the gluteus medius, external oblique muscle, internal oblique muscle and the multifidus lumborum muscle were measured with the help of a surface electromyogram. The gluteus medius significantly showed low activity on the stable 30cm stand in com-parison with the other conditions. The external oblique muscle, internal oblique muscle, and the multifidus lumborum muscle significantly showed significantly high activity underon the unstable condition. It was thought that by raising the feet on the platform, the activity of the gluteus medius muscle decreased. Besides, it was suggested that the activity of the trunk muscles mayight be markedly required highly needed underon the unstable condition.

DOI： 10.24692/jsatj.4.2_147

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Language：Japanese   Publisher：日本東洋心身医学研究会  

部活動における体罰などにより心的外傷後ストレス障害(PTSD)を患っている人は、一定数存在していると推測される。PTSDに対する鍼治療の有効性を示す先行研究もあるが、今回の1例に対する耳介療法では、経時的な改善はみられたものの、N-of-1試験における有効性を示すことはできなかった(改訂出来事インパクト尺度日本語版(IES-R)における評価は、対照期間の平均34.50点に対して介入期間の平均32.25点で、R検定の結果はp=0.73)。今回の試みで得られた結果を一般化するには限界を伴うが、鍼治療を希望する同様の患者には、まずはガイドラインで推奨されている治療を受けるように伝え、治療効果が得られない場合やさらなる治療効果を期待して、代替的あるいは相補的に提供することが望ましい。また、その際の有効性の検証方法として今回のプロトコルは参考になると考え、提示した。(著者抄録)

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Language：Japanese   Publisher：(一社)徳島県医師会  

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Other Link： https://search.jamas.or.jp/link/ui/2019037937

Language：Japanese   Publisher：現代医療鍼灸臨床研究会  

足関節捻挫はスポーツ活動中に好発する外傷で、代表的な急性外傷である。捻挫後には足関節不安定性が残存することもある。足関節捻挫への治療として、炎症症状と不安定性(特に機能的不安定性)を改善することを目的として鍼治療が行われる。足関節捻挫に対する鍼治療の効果についての検討されており、捻挫に対する有効な方法であると考えられる。バランストレーニングは足関節捻挫の発症リスクを低下させることも明らかになっている。さらに、足関節捻挫の既往歴は足関節捻挫の再発につながるRisk Factorと考えられることから、既往歴を持たせないためには、ジュニア期からバランストレーニングを導入するといった、捻挫をさせないアプローチが重要である。これからのことから、これからのスポーツ鍼灸には、鍼灸を用いた外傷・障害の治療だけではなく、外傷・障害を予防するためのトレーニングやリハビリテーションの指導も併せて実践できることが必要である。(著者抄録)

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：Japanese   Publisher：埼玉アスレチック・リハビリテーション研究会  

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Language：Japanese   Publisher：徳島医学会  

<目的>アンケート方式を用い、ロコモティブシンドロームとメタボリックシンドロームを構成する内科疾患の関連性を横断的に研究することを目的とした。<対象と方法>徳島県臨床整形外科医会が中心となり、平成28年10月2日に「運動器の10年・骨と関節の日」行事として、運動器に関する健康相談が一般市民に実施され、アンケート調査が得られた146名、女性125名、男性21名、46歳～96歳(平均年齢72.5歳)を対象とした。ロコモティブシンドロームの指標には、ロコチェック7項目の該当数を点数化したロコチェックスコアおよびロコモ5を用いた。メタボリックシンドロームを構成する疾患として高血圧症・糖尿病・高脂血症について、内服薬の有無を聴取した。age matchした内服薬が無い群をコントロールとして、メタボリック症候群を構成するこれらの3疾患についてロコチェックスコアとロコモ5のそれぞれについて比較検討をMann-Whitney's U testで行った。ロコチェックスコアとロコモ5およびBMIについて相関関係の有無をスピアマン順位相関係数で解析した。<結果>ロコチェックスコアおよびロコモ5ともに高血圧・糖尿病のそれぞれで有意にコントロール群より高値を示した。ロコチェックスコアおよびロコモ5には強い相関関係が見られた。ロコチェックスコアとBMIに相関関係は認められず、ロコモ5とBMIにも相関関係は認められなかった。(著者抄録)

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：English   Publisher：TAYLOR & FRANCIS LTD  

Purpose To study validity and reliability of a Japanese version of the Cumberland Ankle Instability Tool and to determine the optimal cutoff score. Methods In this study, the questionnaire was cross-culturally adapted into Japanese. The psychometric properties tested in the Japanese version of the CAIT were measured for criteria validity, internal consistency and test-retest reliability in 111 collegiate soccer athletes. We also established the questionnaire cutoff score for discriminating between individuals with and without CAI. Results There was a significant correlation between the Japanese version of the CAIT and the Karlsson score (r = 0.604, p < 0.001). The questionnaire had a high internal consistency (Cronbach's α = 0.833) and reliability [intraclass correlation coefficient (ICC) = 0.826, 95% confidence interval (CI): 0.732-0.888]. The optimal cutoff score was ≤25, which was consistent with previous reports. Conclusions The Japanese version of the CAIT has been shown to be a valid and reliable questionnaire for determining the presence of CAI. We expect that researchers and clinicians will use the Japanese version of the CAIT in Japan. Implications for Rehabilitation Chronic Ankle Instability (CAI), which not only increases recurrence rate of ankle sprain but also decreases athletic performance, is a residual symptom after ankle sprain. Cumberland Ankle Instability Tool, which has the reliability and validity to assess CAI, will be critically useful in assessment procedure for CAI. It is preferable for clinicians and researchers to use the native language version of the CAIT.

DOI： 10.3109/09638288.2016.1138555

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

日常的に競技を行っている大学サッカー選手を対象にCumberland Ankle Instability Tool(CAIT)日本語版を用いて慢性足関節不安定症(CAI)の重症度をCAI群、軽度CAI群、対照群に分類し姿勢制御能力について検討した。動的姿勢制御能力は前方着地時における姿勢安定化時間(TTS)を用いて評価し、静的姿勢制御能力は片脚立位時の重心動揺性にて評価した。その結果、左右方向のTTSおよび重心動揺性において群間に有意差を認め、CAI群および軽度CAI群は対照群と比較し、有意に姿勢制御能力が劣っていた。従って、CAIT日本語版によるCAIの分類は姿勢制御能力の低下を判別でき、さらに、日常的に競技を行っているサッカー選手であっても、CAIを有する者は姿勢制御能力が低下していることが示唆された。(著者抄録)

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DOI： 10.3777/jjsam.66.245

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DOI： 10.3777/jjsam.66.54

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DOI： 10.3777/jjsam.65.271

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Language：Japanese   Publisher：日本スポーツ整復療法学会  

先行研究で、足関節不安定性があると「片脚立位時の足底圧が外側に移動する」「着地時に外側の足底圧が早く増加する」と報告されていることから、足関節捻挫の治療では、歩行時や着地時における足関節の内反傾向を予防することが靱帯修復の大前提になると思われる。今回著者等は、綿包帯固定により足関節機械的不安定が減少すれば階段降下時など着地時の外側接地が改善され、また足底圧中心(COP)が内方および後方へ移動するという仮説を立て、足関節機械的不安定性を有する足を足関節捻挫モデルと仮定し、足関節不安定性に対する綿包帯固定(以下;固定)が着地時の足底圧に及ぼす影響について検討した。対象は、慢性的に足関節内反不安定性を有する大学男子サッカー選手7名9足とした。検討の結果、足底圧分布は、第4・5中足骨において固定前に比べ固定後有意に減少した。また、着地時におけるCOPのX軸は固定後に内側方向へ有意に移動し、Y軸は後方へ有意に移動した。

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

本研究では足関節バランストレーニング時の下腿筋活動量を明らかにすることを目的とした。対象は足関節不安定性(AI)を有さない健常脚(Con群)とAIを有する脚(AI群)とした。安定面、バランスパッド、バランスディスク、ディジョックボード、BOSUの各器具上で片脚立位をとらせ、表面筋電図計にて筋活動電位を計測した。被験筋は長腓骨筋、短腓骨筋、前脛骨筋とした。各筋の筋活動量を器具別に比較すると、全体としてBOSUの筋活動量が他の器具と比べ高く、安定面では低かった。また群や筋の違いにより筋活動量が高まる器具が異なっていた。この結果は足関節捻挫予防トレーニングやリハビリテーションを実施する上で有用な一指標となると考えられた。(著者抄録)

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

筋疲労は瞬発的筋力発揮能力の低下と定義されており、その低下に円皮鍼がどのような影響を及ぼすか二重盲検比較試験を用いて検討した。成人男性23名を対象とし、鍼が付いた円皮鍼で刺激する真鍼群12名と真鍼と外見は同じであるが鍼を除外したプラセボ鍼で刺激するプラセボ鍼群11名とに割付けた。瞬発的筋力発揮能力の指標として、運動負荷前後の最大筋出力、筋の立ち上がり率を示すrate of force development(RFD)を測定した。最大筋出力については両群ともに運動負荷によって有意な低下がみられたが、真鍼群の低下はプラセボ鍼群と比較してその低下が有意に少なかった。また、RFDについてはプラセボ群にのみ運動負荷後に有意な低下がみられた。円皮鍼は、筋疲労を抑制すると示唆された。(著者抄録)

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Language：Japanese   Publisher：社団法人 全日本鍼灸学会  

DOI： 10.3777/jjsam.65.203

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DOI： 10.3777/jjsam.65.107

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下肢傷害に関する機能評価方法として片脚リバウンドドロップジャンプ(SRDJ)を用いる際の台高決定の一助とするため、台高の変化における運動特性の相違を検討することを目的とした。対象は女子球技選手7名とし、台高10、15、20、25、30、35、40cmにおける踏切時間、跳躍高、RDJ-index、踏切中の下肢関節角度、最大関節トルク、関節仕事を3次元動作分析により算出した。その結果、台高25cm以下の条件ではRDJ-index、踏切時間、跳躍高に有意な差はみとめられなかったが、各関節の角度変位、関節トルク、関節仕事は変化していた。また、矢状面の運動における負の関節仕事は台高15cm以上の全ての条件で足関節が股関節よりも5倍以上大きく、前額面では台高30cm以上の全ての条件で股関節が足関節よりも10倍以上大きくなっていた。以上のことから、SRDJにおいては、台高が高くなりすぎると課題の遂行が困難になること、さらに矢状面と前額面では台高の上昇に伴う各関節における踏切中の運動特性が異なることが示唆された。(著者抄録)

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Os subtibialeは発生頻度が低いため,スポーツ選手の発生頻度の報告や超音波検査の報告はほとんどない.本研究ではサッカー選手におけるOssubtibialeの発生頻度と超音波検査の有用性について検討した.サッカー選手60足を対象とし単純X線検査と超音波検査を行い,各検査でOs subtibialeの有無を評価した.発生頻度は単純X線写真での有無を算出した.超音波検査は足関節内果遠位端部にプローブをあて三角靱帯を撮像した.Os subtibialeの発生頻度は10.0%で過去の報告よりも高い傾向となった.超音波検査は正診率が高く有用性があると考えられた.(著者抄録)

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DOI： 10.3777/jjsam.65.47

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DOI： 10.3777/jjsam.64.230

DOI： 10.3777/jjsam.65.203_references_DOI_LXcRRB2qU274jk80QWED2xqKwST

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：社団法人 全日本鍼灸学会  

拝啓 2020年に行われる第32回オリンピック・第16回パラリンピックの開催地が日本(東京都)に決定しました。夏季オリンピックとしては56年ぶりの日本での開催となります。開催に向けて東京オリンピック・パラリンピック競技大会組織委員会が設立され、準備が進められている様子が報道でも多く取り上げられています。今、スポーツに対する国民の関心が非常に高まっています。 全日本鍼灸学会では、東京オリンピック・パラリンピックの招致を機に、スポーツ鍼灸委員会の活動が再開されました。そこで、日本のスポーツ分野における鍼灸の現状、およびスポーツ鍼灸委員会のこれからの取り組みについて紹介します。

DOI： 10.3777/jjsam.64.171

DOI： 10.3777/jjsam.66.54_references_DOI_I3DiMfKM8V2Gz09vRyRFRHFD4zh

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

本研究の目的は野球選手における肩関節外旋筋群の外乱刺激時の筋反応時間を明らかにすることとした。対象者は、大学野球選手の投手8名(野球選手群)と健常男性7名(一般人群)とした。課題動作として、肩関節に対して内旋の不意な外乱刺激を加え、それに対して素早く初期姿勢に戻すように指示した。課題動作の際に表面筋電図を用いて棘下筋、三角筋後部、前鋸筋、僧帽筋上部、僧帽筋中部、僧帽筋下部の筋反応時間を算出した。その結果、2群間に有意な差は認められなかった。野球選手群において、棘下筋が前鋸筋よりも、僧帽筋中部が他の5筋よりも有意に筋反応時間が遅延した。これらの筋活動は投球動作に対する適応であると考えられた。(著者抄録)

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

足関節不安定性を有する大学サッカー選手を対象として不安定板トレーニングを8週間行う6名6脚(T8群)と16週間行う6名6脚(T16群)とに振り分け、不安定板トレーニングの姿勢制御能改善効果持続期間について検討した。トレーニング効果の検討には重心動揺計によって得られる総軌跡長を用い、その測定は訓練前、8、10、12、14、16週間後に行った。その結果、両群とも訓練前に比べ8週後に有意に短い値を示した。また、T8群では8週後に比べ、14週後16週後では有意に長い値を示したが、T16群では8週後以降は有意な変化は認められなかった。このことから、足関節不安定性を有する大学サッカー選手を対象とした8週間の不安定板トレーニングは重心動揺性を改善させたが、トレーニングを中止した場合は、その効果はトレーニング終了後6週間以内に減少し始めることが示唆された。(著者抄録)

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Language：Japanese   Publisher：社団法人 全日本鍼灸学会  

DOI： 10.3777/jjsam.64.230

DOI： 10.3777/jjsam.65.203_references_DOI_LXcRRB2qU274jk80QWED2xqKwST

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Language：Japanese   Publisher：(一社)日本体力医学会  

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DOI： 10.7600/jspfsm.62.492

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Language：Japanese   Publisher：(一社)日本柔道整復接骨医学会  

足関節周囲の過剰骨および骨の変形性変化は、impingement exostosis、Os subfibulare、Os trigonumなどがあり、単純X線撮影、CT、MRIによって評価されることが多い。近年、超音波検査により評価した報告はあるものの、評価精度に関する報告はほとんどない。本研究の目的は、距骨側impingement exostosisやOs subfibulare、Os trigonumにおける単純X線写真と超音波像を比較し、超音波検査の評価精度を検討することである。対象は男子大学サッカー選手34名62足(20±0.7歳、174.4±4.9cm、66.1±5.6kg)である。方法は、単純X線検査と超音波検査を行った。評価方法は、各検査で得られた画像で、異常所見を認めた場合を陽性、正常であれば陰性として行った。統計処理は、単純X線写真に対する超音波像の評価を感度、特異度、陽性的中率、陰性的中率、正診率を用いて算出した。結果は、距骨側impingement exostosisでは偽陰性が多く見落としが多い傾向となり、Os subfibulareは偽陽性が多く見過ぎの傾向となった。Os trigonumは偽陰性が少なく見落としが少ない傾向となった。今後は、評価精度を上げるために静止画だけでなく、超音波診断装置の利点である動的撮像や短軸像なども合わせて評価することが必要と考えられた。(著者抄録)

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Language：English   Publisher：一般社団法人日本体力医学会  

Ankle inversion sprains are the most common football-related injuries. About 74% of patients with residual symptoms such as general ankle instability, the ankle suddenly giving way, or recurrent ankle sprains, may develop chronic ankle instability. Balance training is a common rehabilitation procedure used after an ankle sprain. However, the influence of balance training on the muscle reaction time and muscle chain reaction is still unclear. Accordingly, this study examines how balance training influences muscle reaction time and muscle chain reaction. This controlled laboratory study involved 33 male college football players assessed for existence/non-existence of ankle functional instability (FI). The subjects were then divided into a group of 12 players with FI who underwent balance training (FI group), 12 players without FI who underwent balance training (Con group), and 9 players without FI who did not undergo balance training (NTr group). Muscle reaction times during ankle varus simulation with Trap-door were measured. The main effect was seen between the peroneus muscle group and anterior tibialis muscle in the Con and NTr groups. In the FI group, no significant main effect on the muscle was seen, but the main effect on intervention period was significant. Balance training reduced the muscle reaction time of the FI group. Results suggest that balance training may improve muscle reaction time. However, the absence of a significant difference between the peroneus muscle group and anterior tibialis muscle in the FI group after balance training indicates that the muscle chain reaction did not recover to the level of an uninjured leg.

DOI： 10.7600/jpfsm.2.493

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2013&ichushi_jid=J01715&link_issn=&doc_id=20130702230010&doc_link_id=%2Fag9rsige%2F2013%2F003007%2F011%2F0653-0658%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fag9rsige%2F2013%2F003007%2F011%2F0653-0658%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

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Language：English   Publisher：一般社団法人日本体力医学会  

The ankle has an important role in stretch shortening cycle (SSC) movement. Thus, it is likely that ankle instability negatively affects the SSC. To investigate the relation between SSC movement and ankle instability. This could contribute to developing a progressive phase of rehabilitation for athletes after ankle sprain, and could also be used as criteria for returning to sport participation. The legs of eight university male football players were categorized as either having ankle instability (AI group) or not having ankle instability (NI group). Ankle instability was defined as functional instability based on the Karlsson score. The rebound drop jump, which is the index of SSC movement, was measured, and the subjects&#039; performances for SSC movement were evaluated. In addition, isokinetic ankle strength, based on the Biodex System Dynamometer to assess the peak torque of the plantar/dorsal muscles of the ankle joint, was recorded. The groups did not differ in regard to flight time. The contact time of the AI group was significantly longer than that of NI group. With regard to isokinetic ankle strength, there was no significant difference in plantar or dorsal flexion between the two groups. This study showed that the contact time of the AI group was longer than that of NI group. In ankles with instability, the function of the stretch reflex may be suppressed, and the efficiency power for exertion during ballistic SSC movement might thus be decreased. These findings suggest that ankle instability relates to SSC movement by prolonging the contact time in the rebound drop jump.

DOI： 10.7600/jpfsm.1.679

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Language：Japanese   Publisher：日本臨床スポーツ医学会  

日本における大学生スポーツ選手の相補・代替医療(Complementary and Alternative Medicine、以下CAM)利用状況に関する包括的かつ基礎的な資料を得ることを目的に、福岡県内の1大学に所属する競技スポーツ選手の中から、同年代の国体種目別の活動人数比率をもとに比例抽出した113名に対して構造化面接を行った。その結果、スポーツ選手のCAM利用率は95%で、近代西洋医学の利用率(89%)より高かった。その内訳は、栄養ドリンク70%、サプリメント62%、OTC内服薬48%、OTC外用薬39%、テーピング35%、マッサージ31%などであった。CAMの平均自己負担額は26,751円/人であった。健康保険が適応された額を含めたCAMの年間総支出額は36,433円で、近代西洋医学に対する年間総支出133,298円の約4分の1であった。(著者抄録)

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Language：Japanese   Publisher：帝京平成大学  

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Language：Japanese   Publisher：(公社)日本薬学会  

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足関節不安定性を残存すると足圧中心(COP)は後外側に変位すると報告されているが,足関節捻挫後の経時的なCOPの変化をみた報告はない.本研究では,足関節捻挫後のCOPの経時変化を検討した.サッカー選手59足を対象とし,足関節内反捻挫を受傷した19足を捻挫群,対照群として,足関節捻挫の既往があり不安定性が残存している20足を不安定群,捻挫の既往がない20足を健常群とした.測定は重心動揺計を用いて,30秒間の片脚起立を受傷翌日から週1回,8週間に亘って行なった.Y軸では,後方から徐々に前方へ偏位するが,健常足より8週間後においても後方に位置していた.X軸では,徐々に外側へ偏位し8週間後には健常群より外側に位置していた.(著者抄録)

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Language：Japanese   Publisher：帝京平成大学  

Lower extremity muscle&#039; reaction time (RT) is one of the most important indicators of ankle instability. Many studies have shown that RT is more prolonged in unstable ankles than in normal ankles. Although RT has been examined in many studies, the characteristics of RT have been focused on in only few of these. One study that examined the characteristics of RT showed the effects of fatigue on RT in healthy patients. The purpose of our present study is to report the effects of fatigue on RT in patients with ankle instability. Methods: The subjects were 14 collegiate footballers comprising 7 healthy subjects (Con group) and 7 with ankle instability (FAI group). Each group was defined by the Karlsson score. We measured the RT with a trap door. That simulated the mechanism of an inversion-ankle sprain, and the electromyography (EMG) of the peroneus brevis (PB) muscle and tibialis anterior (TA) muscle was recorded. We then measured the postural sway (SWAY) with a force platform equipped with a data processor in all the subjects. After the pre measurements, the subjects underwent balance training exercise in which the subjects stood on each leg for 1 min: this training was performed three timeswith both legs. The post measurementswere doneafter balance training exercise. Results: The RTs of the PB and TA muscles in both the groups were prolonged after the balance training exercise (p&lt;0.05), however the SWAYs in both groups did not change. Discussion: In subjects with ankle instability RTsof both muscles were prolongedsignificantly after balance training exercise as in healthy subjects. Though RTs were prolonged, SWAYs did not change significantly. The increase in RT may have been caused by neuromuscular fatigue. It remains unclear, however, whether this was an effect of muscle fatigue brought on by the balance training exercise.

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足関節不安定性(FI)が筋反応時間に与える影響を明らかにすることを目的とした。大学サッカー選手24名24足を対象とし、質問紙によりFIを有する足(FI群)12足とFIを有しない足(Con群)12足に振り分けた。表面筋電図を用い、内反刺激に対する長腓骨筋、短腓骨筋、前脛骨筋の筋反応時間を測定した。さらに各測定において長腓骨筋と短腓骨筋の2筋のうち、より低い値を腓骨筋群の筋反応時間として検討に加えた。長腓骨筋においてFI群はCon群に比べて有意に遅延していた。また、Con群では腓骨筋群が前脛骨筋より早期に反応する(筋連鎖反応が機能している)が、FI群では腓骨筋群と前脛骨筋に差がなく、筋連鎖反応が機能不全に陥っている可能性が示唆された。(著者抄録)

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Language：Japanese   Publisher：(一社)日本足の外科学会  

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足関節不安定性(FI)が筋反応時間に与える影響を明らかにすることを目的とした。大学サッカー選手24名24足を対象とし、質問紙によりFIを有する足(FI群)12足とFIを有しない足(Con群)12足に振り分けた。表面筋電図を用い、内反刺激に対する長腓骨筋、短腓骨筋、前脛骨筋の筋反応時間を測定した。さらに各測定において長腓骨筋と短腓骨筋の2筋のうち、より低い値を腓骨筋群の筋反応時間として検討に加えた。長腓骨筋においてFI群はCon群に比べて有意に遅延していた。また、Con群では腓骨筋群が前脛骨筋より早期に反応する(筋連鎖反応が機能している)が、FI群では腓骨筋群と前脛骨筋に差がなく、筋連鎖反応が機能不全に陥っている可能性が示唆された。(著者抄録)

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese  

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Language：Japanese   Publisher：日本靴医学会  

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Language：Japanese   Publisher：日本臨床スポーツ医学会  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2011&ichushi_jid=J03582&link_issn=&doc_id=20110516480013&doc_link_id=%2Fdp2sport%2F2011%2F001902%2F021%2F0234-0236%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fdp2sport%2F2011%2F001902%2F021%2F0234-0236%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：帝京平成大学  

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Language：Japanese   Publisher：帝京平成大学  

Ankle instability is often observed during lateral movements such as cutting movements. The purpose of this study is to examine muscle activity during cutting movements in people with mechanical instability(MI) only and in people with functional instability(FI) only. The study group consisted of 19 feet of 19 male university soccer players; those with MI only were termed &quot;group M&lt; and those with FI only were termed &quot;group F.&lt; The control group consisted of 7 legs without any history of disorders of the lower limbs and was termed &quot;group C.&lt; Leg muscle activity was measured while the subjects performed cutting movements on a foot plate. The analyses pertained to 3 phases: before the landing of the foot on the ground, during the landing of the foot on the ground, and after the landing of the foot on the ground. The relative integrated electromyographic activity(% iEMG) was determined by dividing the amount of muscle activity in each phase by the amount of muscle activity during isometric maximal voluntary contraction and was compared between the subjects. Compared to group C, group F showed a significantly higher amount of muscle activity in the peroneus longus muscle during the landing of the foot on the ground(p = 0.023), and muscle activity tended to be even higher after the landing of the foot on the ground(p = 0.066). These results suggest that in cutting movements, people with FI only try to reduce the instability by increasing the amount of muscle activity in the peroneal muscle, and that, people with MI also increase the amount of muscle activity in order to control the lateral instability.

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Language：Japanese   Publisher：(一社)日本体力医学会  

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Language：Japanese   Publisher：(一社)日本臨床整形外科学会  

骨粗鬆症と運動器不安定症とでは、どちらが脆弱性骨折の発生により大きい影響を与えているか検討した。骨粗鬆症検診を受診者した50歳以上の女性465例を対象とした。検診項目は、骨密度、脆弱性骨折の有無、開眼片脚起立時間、散歩やジョギングなどの運動の有無とした。骨密度は、踵骨のSODを測定してYAMを%表示し、70%未満を骨粗鬆症、80%以上を正常とした。65歳未満は、95%は健脚で、運動器不安定症の有無での比較はできなかった。骨脆弱性の有無での比較では、明らかに差を認めた。65歳以上74歳未満の前期高齢は、正常な人と運動器不安定症か骨粗鬆症の人とで、明らかな差を認めた。75歳以上の後期高齢者は、骨粗鬆症、運動器不安定症に当てはまるかどうかに関係なく、同じ頻度で骨折がみられ、正常者でも35%に骨折を認めた。後期高齢者は、軽い運動をすることによって、骨折の頻度を減少できることが示された。

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Language：Japanese   Publisher：(一社)日本体力医学会  

J-GLOBAL

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Language：Japanese   Publisher：(一社)日本体力医学会  

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Language：Japanese   Publisher：日本補完代替医療学会  

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Language：Japanese  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：Japanese   Publisher：(株)文光堂  

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2010&ichushi_jid=J01715&link_issn=&doc_id=20100614130008&doc_link_id=%2Fag9rsige%2F2010%2F002706%2F009%2F0637-0642%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fag9rsige%2F2010%2F002706%2F009%2F0637-0642%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：Japanese   Publisher：文光堂  

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Language：Japanese   Publisher：(一社)日本足の外科学会  

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Language：Japanese   Publisher：(一社)日本足の外科学会  

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Language：Japanese   Publisher：日本臨床スポーツ医学会  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

足関節不安定性は捻挫受傷後に残存し、捻挫再発の原因となる。また、足関節不安定性のある足では、腓骨筋反応時間が遅延すると言われている。本研究では、捻挫の治療として行われている鍼通電刺激を用い、足関節不安定性に対する鍼通電刺激の影響を明らかにすることを目的とした。大学男子サッカー選手15名30足を対象として、短腓骨筋への10分間の鍼通電刺激による腓骨筋反応時間の変化を検討した。その結果、足関節不安定性を有しない足に比べて足関節不安定性を有する足の腓骨筋反応時間は遅延していたが、鍼通電刺激後に短縮した。しかし、足関節不安定性を有しない足では変化を認めなかった。鍼通電刺激が足関節不安定性を改善する可能性が示唆された。(著者抄録)

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2010&ichushi_jid=J03582&link_issn=&doc_id=20100525420026&doc_link_id=%2Fdp2sport%2F2010%2F001802%2F026%2F0274-0279%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fdp2sport%2F2010%2F001802%2F026%2F0274-0279%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Language：English   Publisher：Japan Society of Exercise and Sports Physiology  

Muscle injuries frequently occur in sports, with muscle damage brought about by various causes. Numerous studies have reported that acupuncture increases blood flow, relieves pain and inflammation, strengthens muscles, and reduces abnormal muscle tone. In this review and study, we introduce some typical acupuncture techniques which can be used for treating muscle injury and describe each one&#039;s effect. The techniques we used in this study are Chishin, Jyakutaku, electroacupuncture and exercise acupuncture. It is important that when selecting a particular technique, that the time elapsed after injury be considered. As a result of investigating the effect of low-frequency electroacupuncture stimulation on the repair of damaged muscle, we found that Acupuncture stimulation accelerates the reduction in swelling and inhibits deutogenic necrosis of muscle and induces enlargement of regenerative muscle. Therefore, we suggest that acupuncture therapy has great effect on muscle injury, and helps in recovery from such injury.

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

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Language：Japanese   Publisher：(一社)日本足の外科学会  

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Language：Japanese   Publisher：一般社団法人 日本体育学会  

DOI： 10.20693/jspehss.60.41_1

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Language：Japanese   Publisher：(一社)日本体力医学会  

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Language：Japanese   Publisher：日本体力医学会  

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Language：Japanese   Publisher：(一社)日本臨床スポーツ医学会  

J-GLOBAL

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Language：Japanese   Publisher：(一社)日本足の外科学会  

J-GLOBAL

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Language：Japanese   Publisher：(一社)日本体力医学会  

CiNii Article

J-GLOBAL

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Language：Japanese   Publisher：日本体力医学会  

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Language：Japanese   Publisher：(公社)全日本鍼灸学会  

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Language：Japanese   Publisher：徳島医学会  

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