拉丁舞者在单脚着陆任务中下肢肌肉协调的适应性调整
Xiangli Gao1, Tianle Jie1, Datao Xu1,2
1Faculty of Sports Science, Ningbo University, Ningbo 315211, China.
Biomimetics (Basel, Switzerland)
|August 28, 2024
概括
拉丁舞者在降落时表现出类似的下肢肌肉协同作用与控制器,前和中部胃角肌肉的关键调整,优化神经肌肉控制.
科学领域:
- 生物力学 生物力学
- 神经肌肉生理学 神经肌肉生理学
- 舞蹈科学 舞蹈科学 舞蹈科学
背景情况:
- 以前的研究往往忽略了协同肌肉相互作用,而是专注于舞者个体肌肉活动.
- 了解降落期间下肢肌肉协同作用对于理解舞者独特的神经肌肉控制模式至关重要.
研究的目的:
- 为了研究和比较拉丁舞者和健康对照之间的下肢肌肉协同作用在登陆任务期间.
- 为了确定舞者着陆机制中的特定神经肌肉适应.
主要方法:
- 采用Vicon运动捕捉,力盘和电肌图 (EMG) 来收集22名拉丁舞者和22名健康参与者的着陆数据.
- 使用非负矩阵因子化 (NNMF) 进行EMG分解和K-means集群,并使用Pearson相关系数进行协同分类.
- 提取并分析了两个组的三个不同的肌肉协同作用.
主要成果:
- 在拉丁舞者和健康参与者中确定了三种肌肉协同作用.
- 观察到拉丁舞者与对照人群相比,Synergy 1 中前前和中腹肌的贡献显著增加 (p < 0.001,p = 0.024).
- 在健康参与者与拉丁舞者 (p = 0.039) 之间,在Synergy 3中发现了巨大的横向的贡献显著更大 (p = 0.039).
结论:
- 拉丁舞者在登陆时表现出与健康个体相比的整体肌肉协同作用.
- 舞者表现出特定的神经肌肉调整,特别是涉及前和中腹肌,以优化着陆控制.
- 这项研究为舞者在动态动作过程中使用的复杂控制策略提供了新的见解.
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