Epidemiological Study of Track-and-Field Meets On-Field Medical Care.

Background: Most epidemiological studies on track-and-field meets have been limited to the Olympics and world championships. These are meets in which only high-performance athletes participate at a certain time of the year. In contrast, epidemiological studies on athletes of various ages and across different seasons may provide health care providers with valuable insights into injury prevention and on-field medical care.

Knee flexor muscle fatigue during repeated Nordic hamstring exercise.

Background: Nordic hamstring exercise is an effective method for preventing hamstring strain injury. In this study, we investigated the response of knee flexors regarding increased muscle force and fatigue when the Nordic hamstring exercise was performed repeatedly to further understand how it can prevent hamstring strain injury.

Methods: The Nordic hamstring exercise was performed 10 times by 53 athletes; knee flexor peak tensile force and the respective flexion angle were compared at different phases during this sequence: phase 1, 1 Nordic hamstring exercise force; phase 2, mean value during the 2-4 repetitions; phase 3, mean value during the 5-7 repetitions; and phase 4, mean value during the 8-10 repetitions.

Development of a database for educating athletes in university sports.

[Purpose] The aim of this study was to investigate the development of a database and system for easily creating documents for educational guidance on a personal computer and to assess the efficacy of such a system. [Participants and Methods] Thirty-seven athletic trainers of students who belonged to an athletic department participated in the study. We used FileMaker Pro 17 Advanced for document creation, and data on independent exercises for athletic rehabilitation were used for database creation.