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人类脊髓运动神经元的募集:与随意运动方向有关但与速度无关的顺序排列。

Spinal motoneuron recruitment in man: rank deordering with direction but not with speed of voluntary movement.

作者信息

Desnedt H E, Gidaux E

出版信息

Science. 1981 Nov 20;214(4523):933-6. doi: 10.1126/science.7302570.

DOI:10.1126/science.7302570
PMID:7302570
Abstract

Single motor units in human interosseous muscle are recruited in order from small to large in slow or brisk voluntary abduction of the index finger. When the same muscle acts as a synergist as opposed to a prime mover, about 8 percent of the unit pairs consistently reversed their recruitment order. Motor commands appear to be patterned in terms of movements rather than muscles and to involve different connectivities to the motoneuron pool of a muscle executing movements in different directions.

摘要

在食指缓慢或快速自主外展过程中,人类骨间肌的单个运动单位按从小到大的顺序被募集。当同一块肌肉作为协同肌而非主动肌起作用时,约8%的运动单位对会持续颠倒其募集顺序。运动指令似乎是按照运动模式而非肌肉来编排的,并且涉及与在不同方向执行运动的肌肉运动神经元池的不同连接方式。

相似文献

1
Spinal motoneuron recruitment in man: rank deordering with direction but not with speed of voluntary movement.人类脊髓运动神经元的募集:与随意运动方向有关但与速度无关的顺序排列。
Science. 1981 Nov 20;214(4523):933-6. doi: 10.1126/science.7302570.
2
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Ballistic contractions in fast or slow human muscles: discharge patterns of single motor units.人类快肌或慢肌中的弹道式收缩:单个运动单位的放电模式。
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Reversal of recruitment order of single motor units produced by cutaneous stimulation during voluntary muscle contraction in man.在人体随意肌收缩过程中,皮肤刺激所产生的单个运动单位募集顺序的反转。
Nature. 1978 Mar 23;272(5651):362-4. doi: 10.1038/272362a0.
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Human spinal cord injury: motor unit properties and behaviour.人体脊髓损伤:运动单位的特性和行为。
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Influence of exercise and training on motor unit activation.运动和训练对运动单位激活的影响。
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Size principle of motoneuron recruitment and the calibration of muscle force and speed in man.人类运动神经元募集的大小原则以及肌肉力量和速度的校准
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