Purposes: To investigate characteristics of badminton injuries/pain, and then to assess injuries/pain risk factors in Japanese university badminton players using medical check-up.
Materials and Methods: A questionnaire survey and physical fitness tests of medical check-up were used. 51 university badminton players (25 males and 26 females) were involved in the study. Traumatic injuries, gradual-onset injuries, and pain were assessed and categorized.
Results: In total, 280 injuries and pain were reported consisting of 29 traumatic injuries, 46 gradual-onset injuries, and 205 pain. Injury incidence rate was 2.14 per 1,000 athlete-hours of exposures. Shoulder was the most common site of pain. Players with present shoulder pain showed significantly greater straight leg raising angle and weak balance ability compared with pain free players.
Conclusion: Among university badminton players, badminton-associated pain was common, and shoulder was the most common site of pain. Greater straight leg raising angle and weak balance ability might result in shoulder pain.
Purpose: We thought that early athletic rehabilitation focusing on core training does not exert an effect on bone healing for lumbar spondylolysis. This study aimed to investigate the bony healing rate and the period for our conservative treatment.
Subjects and Methods: We examined young athletes (age≤18 years), who visited one institution between April 2013 and March 2016, with the chief complaint of lumbar pain, and who were diagnosed with lumbar spondylolysis.
Results: A total of 97 young athletes with lumbar spondylolysis that included 132 pars interarticularis were enrolled. The bony healing rate and the healing period was 93.1% and 3.3 months in early stage, and 56.7% and 5.4 months in progressive stage, respectively.
Conclusions: Especially in the early stage which the defects were still incomplete separation, early athletic rehabilitation focusing on core training did not exert an effect on bone healing.