Stance- and locomotion-dependent processing of vibration-induced proprioceptive inflow from multiple muscles in humans
Stance- and locomotion-dependent processing of vibration-induced proprioceptive inflow from multiple muscles in humans
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DOI：
10.1152/jn.00764.2006
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发表时间：
2007-01-01
影响因子：
2.5
通讯作者：
Schieppati, Marco
中科院分区：
文献类型：
--
作者：
Courtine, Gregoire;De Nunzio, Alessandro Marco;Schieppati, Marco
吴伟杰，张晓刚.人体多块肌肉振动诱发的本体感受流入的姿势和运动依赖性处理。J Neurophysiol 97：772-779，2007.首次发表于2006年10月25日; doi：10.1152/jn.00764.2006。我们进行了一个全身映射研究的影响，单侧肌肉振动，引发梭Ia发射，对控制站立和行走的人。在安静的立场，振动施加到各种肌肉的躯干颈部系统和下肢引起了显着的倾斜，在整个身体姿势的方向。振动引起的姿势倾斜的方向是一致的反应补偿的错觉延长的刺激肌肉。在行走过程中，躯干颈部肌肉振动引起大量的运动轨迹向刺激部位相反的一侧的偏差。相比之下，当振动下肢和上肢的各种肌肉时，无法检测到运动轨迹的显着变化。行走和站立过程中肌肉振动的影响之间缺乏相关性，这排除了振动引起的姿势变化可以解释行走过程中观察到的运动轨迹偏差的可能性。我们的结论是，躯干颈部和下肢肌肉振动在行走和站立的不同影响反映了一般的感觉运动计划，肌肉Ia输入处理根据所执行的任务和感觉流入产生的身体部分。
Courtine G, De Nunzio AM, Schmid M, Beretta MV, Schieppati M. Stance- and locomotion-dependent processing of vibration-induced proprioceptive inflow from multiple muscles in Humans. J Neurophysiol 97:772-779, 2007. First published October 25, 2006; doi:10.1152/jn.00764.2006. We performed a whole-body mapping study of the effect of unilateral muscle vibration, eliciting spindle Ia firing, on the control of standing and walking in humans. During quiet stance, vibration applied to various muscles of the trunk-neck system and of the lower limb elicited a significant tilt in whole body postural orientation. The direction of vibration-induced postural tilt was consistent with a response compensatory for the illusory lengthening of the stimulated muscles. During walking, trunk-neck muscle vibration induced ample deviations of the locomotor trajectory toward the side opposite to the stimulation site. In contrast, no significant modifications of the locomotor trajectory could be detected when vibrating various muscles of the lower as well as upper limb. The absence of correlation between the effects of muscle vibration during walking and standing dismisses the possibility that vibration-induced postural changes can account for the observed deviations of the locomotor trajectory during walking. We conclude that the dissimilar effects of trunk-neck and lower limb muscle vibration during walking and standing reflect a general sensory-motor plan, whereby muscle Ia input is processed according to both the performed task and the body segment from which the sensory inflow arises.