探索四头肌和腿筋肌肉的行走-依赖的协同激活,使用一个孤立的腿摇摆范式
Ellis A M Van Can1, Han Houdijk2, Tom J W Buurke1
1University of Groningen, University Medical Center Groningen, Department of Human Movement Sciences, Groningen, the Netherlands; KU Leuven, Department of Movement Sciences, Leuven, Belgium.
Gait & posture
|July 24, 2025
概括
在行走过程中,特别是晚期摇摆时,四头肌关节的协同激活率高于孤立腿摇摆时. 这一发现表明,孤立的腿摇可以帮助区分功能和病理肌肉协同激活.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 人类运动分析 人类运动分析
背景情况:
- 肌肉的协同激活增强了肌肉骨的稳定性,但也可能表明神经问题.
- 了解行走期间的功能性协激活对于诊断障碍至关重要.
研究的目的:
- 在健康成年人中,研究行走和孤立的腿摇摆之间四头四-腿筋协同激活的差异.
- 为了确定是否孤立的腿摇可以区分功能和病态的肌肉协同激活模式.
主要方法:
- 十二名健康的成年人以缓慢而舒适的速度进行了步行和与频率/振幅相匹配的孤立腿部摆动.
- 电肌图记录了四头肌和腿筋肌肉活动.
- 同激活指数 (皮尔森相关性和AUC) 量化了肌肉激活模式.
主要成果:
- 较高的皮尔森相关系数 (速率) 对于四头四-腿筋协同激活在走路与孤立的腿摇摆,特别是在中端到终端摇摆.
- 曲线下的面积 (幅度) 在慢速行走时比舒适的速度更高,但在行走和孤立摇摆之间没有差异.
结论:
- 在走路时摇摆结束时四头肌-腿筋协同激活,为脚跟打击做好准备,这是孤立腿摇摆中缺席的组成部分.
- 孤立的腿摇摆是一种可行的方法,可以在步行过程中区分病态和功能性肌肉协同激活.
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