少年野球チームに対する投球障害予防活動の効果

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Posterior shoulder tightness could cause throwing injury in the baseball players. In 2003, we reported that posterior shoulder tightness in the throwing shoulder already has been observed in elementary school baseball players. We have executed consecutive medical check-ups (MCs) and feed-back for an elementary baseball team since 2001. The aim of this study was to investigate the preventive effects of the consecutive MCs for throwing injury. We studied 13 elementary school baseball players who underwent consecutive MCs from 2001 to 2003 (group A), and 10 elementary school baseball players who underwent consecutive MCs from 2005 to 2007(group B). We measured the shoulder internal rotation with the arm abducted 90 (Abd IR) bilaterally, and compared between the dominant and non-dominant shoulder. In group A, the differences of Abd IR between the dominant and non-dominant shoulder were 17.3 ± 7.8 in 2001, 11.5 ± 9.0 in 2002, 6.5 ± 7.7 in 2003. There was significant difference of Abd IR differences between 2001 and 2003. In group B, the difference of Abd IR between the dominant and non-dominant shoulder were 8.0 ± 12.7 in 2005, 7.0 ± 7.9 in 2006, 9.0 ± 11.0 in 2007. There was no significant difference of Abd IR differences between 2005, 2006 and 2007. These good conditionings could be achieved by consecutive MCs and feed-back. This study shows consecutive MCs could have a preventive effect against throwing injury in elementary school baseball players.
日本肩関節学会の論文
2009-07-27

少年野球チームに対する投球障害予防活動の効果

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