Swing-phase pelvis perturbation improves dynamic lateral balance during walking in individuals with spinal cord injury.
Swing-phase pelvis perturbation improves dynamic lateral balance during walking in individuals with spinal cord injury.
复制标题
摆动相骨盆扰动可改善脊髓损伤患者行走过程中的动态横向平衡。
DOI：
10.1007/s00221-022-06507-3
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发表时间：
2023
影响因子：
2
通讯作者：
Wu,Ming
中科院分区：
文献类型：
--
作者：
Park,SeoungHoon;Lin,Jui-Te;Dee,Weena;Keefer,Renee;Rymer,WilliamZ;Wu,Ming
本研究的目的是确定是否可以通过施加重复的横向扰动力的骨盆在摆动与站立阶段行走的脊髓损伤（SCI）的个人，改善横向平衡的控制。本研究招募了14名不完全SCI患者。每名参与者访问实验室一次，并在两个实验阶段进行测试，包括（1）跑步机行走，在每条腿的摆动或站立阶段期间向骨盆横向施加双侧扰动力，以及（2）跑步机行走前后的地上行走。与站立相扰动条件的结果相比，在行走过程中应用摆动相扰动诱导了髋外展肌和踝跖屈肌肌肉激活的更大增加，以及去除扰动力后横向平衡控制的更大改善（P≤ 0.03）。与站立相扰动的结果相比，在摆动相扰动的跑步机步行练习后，参与者还表现出地上步宽的更大减少和地上步行速度的更大改善（P= 0.01）。这些研究结果表明，在行走时步态摆动阶段对骨盆施加扰动力可能会增强髋外展肌的肌肉活动，并改善SCI患者的横向平衡控制。摆动阶段骨盆扰动的步行练习可以作为一种康复方法，以改善SCI患者在步行过程中对横向平衡的控制。
The purpose of this study was to determine whether the control of lateral balance can be improved by applying repeated lateral perturbation force to the pelvis during swing versus stance phase walking in individuals with spinal cord injury (SCI). Fourteen individuals with incomplete SCI were recruited in this study. Each participant visited the lab once and was tested in two experimental sessions that consisted of (1) treadmill walking with bilateral perturbation force applied to the pelvis in the lateral direction during either swing or stance phase of each leg and (2) overground walking pre- and post-treadmill walking. Applying the swing-phase perturbation during walking induced a greater increase in the muscle activation of hip abductors and ankle plantar flexors and a greater improvement in lateral balance control after the removal of perturbation force, in comparison to the results of the stance-phase perturbation condition (P≤ 0.03). Participants also exhibited a greater reduction in overground step width and a greater improvement in overground walking speed after a session of treadmill walking practice with the swing-phase perturbation, compared with the result of the stance-phase perturbation (P= 0.01). These findings suggest that applying perturbation force to the pelvis during the swing phase of gait while walking may enhance muscle activities of hip abductors and improve lateral balance control in individuals with SCI. A walking practice with the swing-phase pelvis perturbation can be used as a rehabilitation approach to improve the control of lateral balance during walking in people with SCI.