在静态拉伸过程中,肩部位置对双肩手臂肌的剪切弹性模块的影响
Kenta Iwane1, Ko Yanase2, Tome Ikezoe3
1Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Senshunkai Hospital, Kyoto, Japan.
Journal of biomechanics
|June 29, 2023
概括
这项研究发现,特定的肩部位置有效地拉伸双臂肌的长头 (BBL) 和短头 (BBS),这对于预防肌病至关重要. 这些姿势涉及肩膀延伸与外部旋转和水平绑架与内部旋转.
科学领域:
- 肌肉骨生物力学 肌肉骨生物力学
- 运动医学运动医学
- 诊断成像诊断成像的使用
背景情况:
- 双臂肌有两个头:长头 (BBL) 和短头 (BBS).
- 缩短BBL和BBS可以导致肌病在间沟和心肌过程.
- 为了有效的康复和预防伤害,需要分别拉伸BBL和BBS.
研究的目的:
- 为了确定最佳的肩部位置,单独拉伸BBL和BBS.
- 使用剪切波弹性学 (SWE) 来量化BBL和BBS的拉伸程度.
主要方法:
- 15名健康的年轻男性参与了这项研究.
- 剪波弹性学 (SWE) 用于测量非主导臂中BBL和BBS的剪波弹性模块.
- 测量是在休息位置 (肩膀0°曲和绑架) 和四个伸展位置,肘部伸展和前臂伸展.
- 统计分析 (Wilcoxon的签名等级测试) 将位置之间的剪切弹性模块进行了比较.
主要成果:
- 与休息位置相比,BBL和BBS在肩部延伸+外旋和肩部水平拉伸+内旋方面都显示出明显更高的剪切弹性模块.
- 在肩延伸+外部旋转与肩横移+内部旋转方面,BBL表现出明显更高的剪切模量.
- 在肩膀水平绑架+内部旋转与肩膀延伸+外部旋转方面,BBS显示了显著更高的剪切模量.
结论:
- 肩膀延伸与外部旋转有效地拉伸BBL.
- 肩膀水平绑架与内部旋转有效地拉伸了BBS.
- 这些特定的位置为双臂肌的各个头部提供了有针对性的拉伸,有助于肌病的预防和管理.
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