前膝部位位移对膝关节负荷的影响在太极拳前进弓步过程中
Lijun Hua1, Gengchao Bi2, Yanlong Zhang3
1College of Physical Education and Training, Harbin Sport University, Harbin, China.
Frontiers in bioengineering and biotechnology
|October 30, 2024
概括
太极拳前进弓步的膝关节负荷随着膝盖进一步向前移动而增加. 保持膝盖在脚尖后面 (NETT) 显著减少膝盖负荷和肌肉力量需求.
科学领域:
- 生物力学 生物力学
- 体育科学 运动科学 运动科学
- 传统中国医药 传统中国医药
背景情况:
- 前进的鞠躬步骤是太极拳 (TC) 练习的基础.
- 关于它对膝关节负荷和肌肉协调的影响的研究有限.
研究的目的:
- 为了研究三个膝盖前进位置在TC前进弓步期间对膝关节负荷的影响.
- 分析与不同膝盖位置相关的生物力学参数.
主要方法:
- 20名TC实践者进行了三种前进的弓步变化:膝盖不超过脚 (NETT),与脚水平 (LTT) 和超过脚 (ETT).
- 运动捕捉,力平台和电肌学记录了生物力学数据.
- OpenSim软件计算了带和肌肉力量;ANOVA分析了变化.
主要成果:
- 与LTT和ETT相比,NETT姿势显著降低了膝盖曲角度,前后转换和曲延伸扭矩.
- 此外,NETT还导致膝关节带和肌肉的力量显著减少,包括四头肌,双腿肌,腹肌和足肌.
结论:
- 在TC向前冲动期间,膝关节负荷集中在前进运动阶段.
- 膝关节负荷逐渐增加,从NETT到LTT到ETT位置.
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