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疲劳运动对训练有素和未训练有素个体之间的预期和补偿姿势调整的比较影响

Hui Lyu¹, Xueying Cao², Jian Wang³

¹Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China.

Life (Basel, Switzerland)

|August 29, 2024

概括

综合性训练增强了预期性姿势调整 (APA) 和肌肉激活,以获得更好的稳定性,即使在疲劳时也是如此. 没有训练的人在疲劳后表现出更多的补偿性姿势调整 (CPAs).

科学领域:

生物力学生物力学
发动机控制器的控制器
运动生理学运动生理学

背景情况:

姿势调整对于在自我发起的运动中保持平衡至关重要.
疲劳会损害运动控制,增加不稳定的风险.
训练在调节疲劳时的预期性 (APA) 和补偿性 (CPA) 姿势调整方面的作用尚未完全被理解.

研究的目的:

为了比较疲劳对APA,CPA和训练有素 (TR) 与未训练有素 (UT) 个体的站立稳定性的影响.
调查综合培训对前和反姿势控制策略的影响.

主要方法:

使用了表面电肌图 (sEMG) 和力平台测量.
在20分钟的疲劳性炼协议之前和之后进行了评估.
参与者包括18名TR和18名UT个体,进行扰动和稳定性测试.

主要成果:

与未受过训练的个人相比,训练过的个人在关键肌肉 (TrA/IO,LMF,ST) 中始终表现出较早的APA肌肉激活,无论疲劳如何.
在训练有素的人群中观察到更高的APA合并指数.
未经训练的个体在疲劳后表现出增加的CPA合收缩指数,这表明转向反控制.

结论:

综合性培训显著提高了前姿势控制策略,从而改善了APA执行和稳定性.
训练赋予了抵御疲劳引起的姿势控制缺陷的弹性.
这些发现强调了培训对于在具有挑战性的条件下优化姿势反应的重要性.

关键词:

预期的姿势调整.补偿性的姿势调整补偿性的姿势调整综合培训综合培训综合培训电动肌谱学电动肌谱学疲劳疲劳疲劳疲劳疲劳疲劳姿势稳定性姿势稳定性

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