Kinematic and EMG Responses to Pelvis and Leg Assistance Force during Treadmill Walking in Children with Cerebral Palsy.
Kinematic and EMG Responses to Pelvis and Leg Assistance Force during Treadmill Walking in Children with Cerebral Palsy.
复制标题
脑瘫儿童在跑步机上行走时对骨盆和腿部辅助力的运动学和肌电图反应。
DOI：
10.1155/2016/5020348
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发表时间：
2016
影响因子：
3.1
通讯作者：
Zhang,Yunhui
中科院分区：
文献类型：
--
作者：
Wu,Ming;Kim,Janis;Arora,Pooja;Gaebler-Spira,DeborahJ;Zhang,Yunhui
跑步机训练已被用于改善脑瘫（CP）儿童的运动功能，但功能增益相对较小，这表明需要改进当前的范例。在跑步机行走过程中，运动学和EMG对施加到受试者身体上的力的反应的理解对于改善当前的范例至关重要。本研究的目的是确定运动学和肌电图的骨盆和/或腿部辅助力的反应。10名痉挛型脑瘫儿童被招募参加这项研究。在步行过程中，通过定制设计的机器人系统，在步态的站立和摆动阶段向骨盆和/或腿部施加受控的辅助力。在步行过程中，在不同的负载条件下测量肌肉活动和时空步态参数。此外，还收集了跑步机训练前后地上行走时的时空步态参数。在行走过程中，应用骨盆辅助改善了步高，应用腿部辅助改善了步长，但应用腿部辅助也减少了步态摆动阶段踝屈肌的肌肉激活。此外，在一次跑步机训练后，结合骨盆和腿部辅助，步长和自选步行速度显着改善。
Treadmill training has been used for improving locomotor function in children with cerebral palsy (CP), but the functional gains are relatively small, suggesting a need to improve current paradigms. The understanding of the kinematic and EMG responses to forces applied to the body of subjects during treadmill walking is crucial for improving current paradigms. The objective of this study was to determine the kinematics and EMG responses to the pelvis and/or leg assistance force. Ten children with spastic CP were recruited to participate in this study. A controlled assistance force was applied to the pelvis and/or legs during stance and swing phase of gait through a custom designed robotic system during walking. Muscle activities and spatial‐temporal gait parameters were measured at different loading conditions during walking. In addition, the spatial‐temporal gait parameters during overground walking before and after treadmill training were also collected. Applying pelvis assistance improved step height and applying leg assistance improved step length during walking, but applying leg assistance also reduced muscle activation of ankle flexor during the swing phase of gait. In addition, step length and self‐selected walking speed significantly improved after one session of treadmill training with combined pelvis and leg assistance.