步行速度对中风后步长和前部地面反应力相对于个性化预测值的影响
Research square
|June 12, 2025
概括
在中风幸存者中,更快的步行并没有提高步骤长度或前部地面反应力 (AGRF) 到预测水平. 对于一些人来说,快速步行可能会使AGRF缺陷恶化,这表明需要结合疗法.
科学领域:
- 康复科学是康复的科学.
- 生物力学 生物力学
- 神经学 神经学
背景情况:
- 对于中风幸存者来说,建议步行速度更快,以改善活动限制.
- 增加步行速度可以改变步骤长度和前部地面反应力 (AGRF).
- 对于个性化前冲动步长和AGRF存在预测方程,但其与不同速度的实际值的关系尚不清楚.
研究的目的:
- 调查步行速度对中风后步长和AGRF相对于预测的个性化值的影响.
- 为了确定步长不对称是否会影响这种关系.
- 测试假设,预测和实际值之间的差异随着速度的增加而减少.
主要方法:
- 参与者在中风后在跑步机上以不同的速度行走,并记录了步骤长度和AGRF.
- 个性化预测值是使用先前预测方程计算的.
- 线性混合效应模型分析了步行速度和肢体对步骤长度和AGRF的影响,分析按步骤长度不对称分层.
主要成果:
- 增加的步行速度并没有改变实际和预测的步骤长度之间的差异,无论肢体占主导地位.
- 更快的步行增加了自行选择的速度更长的脚步的个体中脚肢AGRF和预测的AGRF之间的差异.
结论:
- 仅仅快速行走是不足以使前部地面反应力 (AGRF) 正常化到预测的个人化水平,在中风幸存者中具有较长的步骤.
- 将快步与其他干预措施结合起来可能是必要的,以增强性AGRF.
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