在有或没有脑的儿童中,步行过程中肌肉的协作激活
P Ippersiel1, C Dussault-Picard1, S G Mohammadyari1
1School of Kinesiology and Physical Activity Sciences, Faculty of Medicine, University of Montreal, Canada; Research Center of the CHU Sainte-Justine, Montreal, Canada.
Gait & posture
|November 29, 2023
概括
患有脑 (CP) 的儿童在步行过程中表现出较大的下肢肌肉联合激活,这表明步行模式不那么稳定. 这一发现无论采用了哪种电肌图数据规范化方法,都适用.
科学领域:
- 生物力学 生物力学
- 神经学 神经学
- 儿科 儿科 儿科
背景情况:
- 患有脑 (CP) 的儿童与典型发育 (TD) 的儿童相比,往往表现出不协调的步态.
- 这种步态差异可能源于下肢肌肉协同激活的增加,但研究结果不一致.
研究的目的:
- 为了比较 CP 和没有 CP 的儿童在步行过程中下肢肌肉的协同激活.
- 为了研究电肌谱规范化方法和总运动功能分类系统 (GMFCS) 水平对肌肉协同激活的影响.
主要方法:
- 电肌扫描测量了46名儿童 (19 CP, 27 TD) 走路时的下肢肌肉活动.
- 用RMS平均和动态正常化数据计算特定肌肉对的肌肉联合激活.
- 统计分析比较了群体之间的协同激活和GMFCS水平.
主要成果:
- 患有CP的儿童在姿势和摆动期间,在几个肌肉对中显示出显著更大的肌肉协同激活,这取决于正常化方法.
- 动态规范化数据显示,在CP组中,在立场期间,前腹腹半 (TA-G) 和前腿直肠 (RF-G) 的联合激活率较高.
- 肌肉协同激活值受到正常化程序的影响,但CP的协同激活增加在各种方法中是一致的.
结论:
- 患有脑脊髓炎的儿童在步行过程中肌肉联合激活率升高,特别是在立姿阶段,可能表明步行策略不那么强大.
- 虽然正常化技术会影响协同激活的措施,但在患有CP的儿童中,协同激活的增加是一个一致的发现.
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