7周的高体积胸部肌肉伸展训练对肌肉功能和肌肉硬性的影响
Marina Reiner1, Anna Gabriel2, Daniel Sommer1
1Institute of Human Movement Science, Sport and Health, University of Graz, Mozartgasse 14, 8010, Graz, Austria.
Sports medicine - open
|June 1, 2023
概括
乳房大肌肉 (PMa) 静态拉伸7周增加了肩膀运动范围 (ROM) 和最大自愿同位数收缩 (MVIC) 在较长的肌肉长度. 这表明带长度可能会增加,这表明ROM改进的新机制.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
背景情况:
- 下肢静态拉伸可以增加运动范围 (ROM),降低肌肉硬度.
- 关于上肢伸展效应和机制的证据有限.
- 胸部大肌肉 (PMa) 拉伸对肩膀ROM,力和性的影响尚未被探索.
研究的目的:
- 为了研究一个为期7周的静态拉伸计划对胸部大肌肉 (PMa) 的影响.
- 为了评估腺关节ROM,肌肉力量和肌肉度的变化.
- 探索上肢伸展适应的潜在机制.
主要方法:
- 38名健康参与者被随机分配到PMa-静态拉伸 (PMa-SS) 或对照组.
- PMa-SS组进行了7周的拉伸,每周3次,每次15分钟.
- 测量包括肩部延伸ROM,PMa刚度和长短肌肉长度的最大自发同度收缩 (MVIC).
主要成果:
- 在PMa-SS组,肩部伸展ROM (+6%) 和MVIC在长肌长度 (+11%) 上显著增加.
- 在短肌长度或PMa肌肉度下,MVIC没有显著变化.
- 对照组在任何测量参数中都没有显著变化.
结论:
- 七周的PMa静态拉伸增强了肩膀ROM,并改善了较长肌肉长度的同位力产生.
- 研究结果表明,肌肉束长度可能会增加,这意味着瘤细胞在序列中进行了适应.
- 这项研究提供了上肢伸展益处的证据,并提出了一种涉及肌肉结构适应的新机制.
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