高校野球選手に見られる肩・肘障害の縦断的調査結果

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We identified that the upper trapezius muscle weakness, core dysfunction, tightness of the lower limbs muscles and lattisimus dorsi correlated with shoulder and/or elbow disorders. The purposes of this study were firstly to investigate the prevalence of shoulder and elbow disorder and secondly to observe effectiveness of exercises in order to evaluate the effects of conditioning and training to muscle weakness and tightness mentioned previously. 30 players participated in the 1st and 2nd medical check-ups were investigated for the upper trapezius muscle strength, core function, tightness of the lower limbs muscles and lattisimus dorsi. We also observed whether the players with shoulder or elbow disorder returned to baseball or not. The number of players with shoulder disorder diminished from 5 (17%) to 3 (10%), and the ones with the elbow disorder from 3 (10%) to 1 (3%), respectively. 5 with shoulder disorder completely recovered: however, 3 newly complained of shoulder pain, additionally 2 of 3 players with elbow disorder recovered well and left 1 who still persisted of elbow pain. The upper trapezius strengthening and core stability were acquired well, in contrast tightness of the lower limbs did not improve well. Conditioning and training are effective to diminish the number of players with shoulder or elbow disorder.
2009-07-27