Soleus h-reflex modulation during stance phase of walking with altered arm swing patterns.
Soleus h-reflex modulation during stance phase of walking with altered arm swing patterns.
复制标题
步行站立阶段的比目鱼肌 h 反射调节，手臂摆动模式发生改变。
DOI：
10.1123/mcj.14.1.116
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发表时间：
2010
期刊：
影响因子：
1.1
通讯作者：
Behrman,AndreaL
中科院分区：
文献类型：
--
作者：
Phadke,ChetanP;Klimstra,Marc;Zehr,EPaul;Thompson,FloydJ;Behrman,AndreaL
本研究的目的是测试步行过程中手臂摆动对比目鱼肌 H 反射幅度调节的影响。 15 名受试者在 4 种手臂摆动条件下在跑步机上行走（1.07 m/s）：1-自然手臂摆动（控制）、2-主动约束、3-被动约束和 4-被动辅助。电刺激胫神经并记录比目鱼肌肌电图。主动约束期间的 H 反射幅度明显大于被动约束期间 (p= .013)。其余手臂摆动情况没有显着差异。我们检测到手臂摆动对比目鱼肌 H 反射幅度的微妙影响。下降调节可以作为门控机制来控制手臂运动对腿部肌肉反射路径的影响。这种门控机制可能会受到神经损伤后的损害，可能会增强步行过程中腿部肌肉反射的外周感觉输入的调节。建议未来进行实验来测试其他条件并在步行的更多阶段中激发反射。
The purpose of this study was to test the effect of arm swing on modulation of soleus H-reflexes amplitudes during walking. Fifteen subjects walked (1.07 m/s) on a treadmill in 4 arm swing conditions: 1-natural arm swing (control), 2-active restraint, 3-passive restraint, and 4-passive-assisted. Tibial nerve was electrically stimulated and soleus EMG was recorded. H-reflex amplitude was significantly greater during active than during passive restraint (p= .013). Remaining arm swing conditions were not significantly different. We detected a subtle effect of arm swing on soleus H-reflex amplitude. Descending regulation may serve as a gating mechanism to control the effect of arm movements on reflex pathways for leg muscles. This gating mechanism may be impaired postneural injury, potentially enhancing the modulation of peripheral sensory inputs on reflexes in leg muscles during walking. Future experiments to test additional conditions and evoking reflexes in more phases of walking are recommended.