Characteristics of the rotator cuff muscle thickness in baseball players using ultrasound images
Characteristics of the rotator cuff muscle thickness in baseball players using ultrasound images
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使用超声图像研究棒球运动员肩袖肌肉厚度的特征
DOI：
10.9759/hppt.9.187
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Y. Yamashita
中科院分区：
文献类型：
--
作者：
H. Kogo;Y. Yamashita
[目的]利用超声图像研究棒球运动员肩袖肌肉的厚度。[研究对象]30名男性(60只手臂)，高中时期有至少3年的硬式棒球俱乐部工作经验，至少5年的棒球俱乐部工作经验。[方法]对受试者进行问卷调查，并使用超声图像测量肩袖肌肉厚度(投掷侧和非投掷侧)。[结果]投掷侧与非投掷侧肩袖肌厚度比较，投掷侧冈下肌明显变薄，肩峰下肌明显增厚。比较有无投掷肩相关病史的患者发现，在无投掷肩相关病史的患者中，体位史或肌肉厚度没有显著差异。然而，这些人更有可能打过外野手的比赛。相比之下，有投掷肩膀相关病史的人群中包括大量投手和接球手。以肌肉厚度为因变量，身高、体重、工作年限、体位史、投掷肩相关病史为自变量的多元回归分析显示，冈下肌和小圆肌厚度与工作年限呈负相关。[结论]有5年棒球俱乐部工作经验的运动员投掷侧冈下肌较薄，肩下肌较厚。没有投掷肩膀相关病史的参与者更有可能担任外野手，而那些有投掷肩膀相关病史的参与者更有可能担任投手或接球手。我们的结果表明，多年的经验会影响冈下肌和小圆肌的厚度。
[Purpose] The purpose of this study was to investigate the thicknesses of the rotator cuff muscles in baseball players using ultrasound images. [Subjects] Thirty male (60 arms) with at least 3 years of hardball baseball club experience in high school and at least 5 years of baseball club experience were recruited. [Method] Participants responded to a questionnaire and underwent rotator cuff muscle thickness (throwing side and non-throwing side) measures using ultrasound images. [Results] Comparison of rotator cuff muscle thicknesses on the throwing and non-throwing sides revealed that the infraspinatus muscle was significantly thinner on the throwing side and the subscapularis muscle was significantly thicker on the throwing side. Comparisons of patients with and without medical histories related to the throwing shoulder revealed that, in the no throwing shoulder-related medical history group, there were no significant differences in position history or muscle thickness. However, these individuals were significantly more likely to have played as fielders. In contrast, the group with throwing shoulder-related medical histories included significantly pitchers and catchers. Multiple regression analysis of muscle thickness as the dependent variable and height, weight, years of experience, position history, and throwing shoulder-related medical history as independent variables revealed that infraspinatus and teres minor muscle thicknesses were negatively correlated with years of experience. [Conclusion] In baseball players with 5 years of baseball club experience, the infraspinatus muscle was thinner, and the subscapularis muscle was thicker, on the throwing side. Participants with no throwing shoulder-related medical histories were significantly more likely to play as fielders, whereas those with throwing shoulder-related medical histories were more likely to play as pitchers or catchers. Our results suggested that years of experience affect infraspinatus and teres minor muscle thicknesses.