Injury data collection and utilisation practices in university sports teams: A cross-sectional study.

Objectives: This study aimed to examine injury surveillance practices in a variety of university sports teams and barriers and facilitators for injury data collection and utilisation.

Design: Cross-sectional study.

Setting: University sports teams in Japan.

Health status of university football athletes through multidimensional screening.

Objective: Adequate conditioning results from various physical, environmental, and psychological factors in sports activities. In this study, we aimed to clarify the concurrence and relevance of injuries, psychological problems, and sleep disturbance in university football (soccer) players. Biomechanical characteristics and risk factors for those injuries were also investigated.

Influence of Surveillance Methods in the Detection of Sports Injuries and Illnesses.

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.

Trigger Point Acupuncture and Exercise for Chronic Low Back Pain in Older Adult: a Preliminary Randomized Clinical Trial.

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.

Managing office worker presenteeism by providing financial aid for acupuncture therapy: a pragmatic multicenter randomized comparative study.

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.

Sports Injury Surveillance Systems and Guidelines in Japan: A Systematic Review.

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.

Injury pattern based on player positions in Japanese university handball: a cross-sectional study of 2056 players.

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.

Injuries in Japanese university handball: a study among 1017 players.

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.

Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns.

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.

Male collegiate soccer athletes with severe ankle laxity display increased knee abduction during side-cutting tasks compared to those with only perceived ankle instability.

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.

Injury pattern according to player position in Japanese youth handball: A cross-sectional study among 2377 players.

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.

An update of the Japanese Oslo Sports Trauma Research Center questionnaires on overuse injuries and health problems.

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.

Japanese translation and validation of web-based questionnaires on overuse injuries and health problems.

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.

Ankle laxity affects ankle kinematics during a side-cutting task in male collegiate soccer athletes without perceived ankle instability.

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.

Directions of single-leg landing affect multi-segment foot kinematics and dynamic postural stability in male collegiate soccer athletes.

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.

Altered lower limb kinematics and muscle activities in soccer players with chronic ankle instability.

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.

Association between Cumberland Ankle Instability Tool score and postural stability in collegiate soccer players with and without functional ankle instability.

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.

A Biomechanical Comparison Among Three Kinds of Rebound-Type Jumps in Female Collegiate Athletes.

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.

Effects of electroacupuncture to the trigeminal nerve area on the autonomic nervous system and cerebral blood flow in the prefrontal cortex.

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.

Cross-cultural adaptation, reliability, and validity of the Japanese version of the Cumberland ankle instability tool.

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.

Effect of 100 Hz electroacupuncture on salivary immunoglobulin A and the autonomic nervous system.

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.

Effect of Forefoot Strike on Lower Extremity Muscle Activity and Knee Joint Angle During Cutting in Female Team Handball Players.

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.