负载变化的影响下肢关节扭矩在头部坐期间
Yusuke Ikeda1, Masaki Kawabe2, Tetsuya Hisamitsu3
1Department of Physical Education, Nippon Sports Science University, Yokohama, Japan.
Journal of human kinetics
|November 17, 2025
概括
越来越多的负荷在头 (OHSs) 显著提高部扭矩,但不是膝盖扭矩. 较大的部扭矩与较低的干角度相关,受肩膀灵活性的影响.
科学领域:
- 生物力学 生物力学
- 运动学 运动学
- 运动科学 运动科学 运动科学
背景情况:
- 顶部 (OHS) 是复杂的运动,需要显著的移动性和稳定性.
- 了解不同负载如何影响OHS动力学和动力学对于性能和伤害预防至关重要.
- 在OHS中,干部定位,部/膝关节关节扭矩和肩膀灵活性之间的相互作用尚未完全阐明.
研究的目的:
- 分析在增加负载时OHS期间的动力学和动力学变化.
- 研究OHS运动力学与肩关节灵活性之间的关系.
主要方法:
- 14名男性大学生在没有负荷的情况下进行了OHS,20%的身体质量 (BM) 和40%的BM.
- 运动捕捉和地面反应力数据是在坐期间收集的.
- 干部角度,关节扭矩和肩膀灵活性测量之间进行了相关性分析.
主要成果:
- 相对峰值部扭矩在20%和40%的BM负载下显著增加,相比于没有负载.
- 相对峰值膝盖扭矩没有显示增加负载时显著增加.
- 在质量最低点中心的相对峰值部扭矩和下干角度之间发现了负相关性.
- 肩部灵活性与质量最低点中心的下半身角度正相关.
结论:
- 在OHS中,增加负载主要提高部扭矩,而不是膝盖扭矩,特别是在较低的相对负载下.
- 在OHS期间,下半身向前倾斜受到部扭矩的影响,并因肩关节的弹性而增强.
- 这些发现为优化OHS技术和评估运动限制提供了洞察力.
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