两组运动不完全性脊髓损伤患者在使用和不使用助行器行走时比目鱼肌Hoffmann反射的比较。
Comparison of Soleus H-Reflexes in Two Groups of Individuals With Motor Incomplete Spinal Cord Injury Walking With and Without a Walker.
作者信息
Phadke Chetan P, Flynn Sheryl, Kukulka Carl, Thompson Floyd J, Behrman Andrea L
机构信息
West Park Healthcare Centre, University of Toronto, and York University, Toronto, Canada.
University of Southern California, Los Angeles, California.
出版信息
Top Spinal Cord Inj Rehabil. 2016 Spring;22(2):158-163. doi: 10.1310/sci2016-0007.
To compare phase- and task-dependent H-reflex modulation in standing and walking in 2 spinal cord injury (SCI) groups with and without a walker. Fourteen subjects with American Spinal Injury Association Impairment Scale D SCI (40±10 years) participated. Tibial nerve was stimulated to evoke 15 H-reflexes (at M-wave 7%-13% of maximum-M). H-reflex was greater in the walker group during stance (but not standing/swing). Differences in H-reflex modulation between groups walking with and without a walker may be explained by sensory mechanism that enhances central excitation, difference in motor activation levels between groups, and other complex mechanisms that influence balance or stability.
比较两组脊髓损伤（SCI）患者（一组使用助行器，另一组不使用助行器）在站立和行走时相及任务依赖的Hoffmann反射（H反射）调制情况。14名美国脊髓损伤协会损伤分级为D级的SCI受试者（40±10岁）参与了研究。刺激胫神经诱发15次H反射（波幅为最大M波的7%-13%）。在站立期（而非站立/摆动期），使用助行器组的H反射更大。使用和不使用助行器的两组患者在行走时H反射调制的差异，可能由增强中枢兴奋性的感觉机制、两组运动激活水平的差异以及其他影响平衡或稳定性的复杂机制来解释。
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