在患有慢性脚不稳定的患者中,骨肌肉中可以存在关节性肌肉抑制吗? 一个横截面研究
Shiyu Dong1, Yanhao Liu1, Ziyin Liu1
1College of Sports and Health, Shandong Sport University, Jinan, 250102, Shandong, China.
Sports medicine - open
|April 10, 2024
概括
患有慢性脚不稳定 (CAI) 的人在肌中表现出双边关节性肌肉抑制 (AMI). 这种肌肉抑制在受影响的肢体中比不受影响的肢体更为明显.
科学领域:
- 运动医学 运动医学
- 神经肌肉生理学 神经肌肉生理学
- 康复科学 康复科学 康复科学
背景情况:
- 脚扭伤通常会导致脚强度降低.
- 肌肌肉中关节性肌肉抑制 (AMI) 是这种力量缺陷的疑似原因.
- 慢性脚不稳定 (CAI) 可能与持续性AMI有关.
研究的目的:
- 调查CAI患者的肌肌肉中AMI的存在和程度.
- 为了比较有和没有CAI的个体之间的AMI水平.
- 评估CAI患者受影响和未受影响四肢之间的AMI差异.
主要方法:
- 在63名CAI患者和63名对照患者的脚变动期间,进行了最大自愿同度收缩 (MVIC) 和叠加爆发 (SIB) 测试.
- 在MVIC期间对肌的电刺激允许计算中央激活比率 (CAR),这是AMI的衡量标准.
- 测试重复测试可靠性在参与者的子集中进行了评估.
主要成果:
- 与对照组相比,患有CAI的个体在受影响 (82.54%) 和未受影响 (89.21%) 的四肢中表现出明显较低的腹腔CARs (受影响:94.64%,未受影响:94.93%).
- 一个显著的组对肢体相互作用证实了组和肢体之间的CAR差异.
- 在CAI组中,受影响的肢体显示出明显较低的CAR (更高的AMI) 比不受影响的肢体 (p=0.023).
结论:
- 肌的双边关节性肌肉抑制 (AMI) 在慢性脚不稳定 (CAI) 的个体中存在.
- 在CAI患者中,受影响的肢体与未受影响的肢体相比,表现出更高程度的内AMI.
- 这些发现表明,AMI有助于脚扭伤后出现的持续性力量缺陷.
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