人类拇展肌的运动单位数量。
Number of motor units in human abductor hallucis.
机构信息
Department of Physiology, College of Medicine, University of Arizona, P.O. Box 210093, Tucson, Arizona 85721-0093, USA.
出版信息
Muscle Nerve. 2011 Jun;43(6):895-6. doi: 10.1002/mus.22071.
Abstract
Motor unit number was estimated for the human abductor hallucis (AH) muscle in 11 subjects by counting the number of increments in surface electromyographic responses to progressive increases in current-pulse amplitude applied to the muscle-nerve. The average motor unit count for AH (43) was substantially smaller than that estimated for other human muscles. Consequently, motor unit activity should be readily recordable up to high forces in AH, making it well suited for studies of recruitment and rate coding.
摘要
通过计数肌肉神经施加的电流脉冲幅度逐渐增加时表面肌电图反应的增量数，对 11 名受试者的人外展拇肌（AH）肌肉进行了运动单位数量的估计。AH 的平均运动单位计数（43）明显小于其他人体肌肉的估计值。因此，在高力下应能轻松记录 AH 的运动单位活动，使其非常适合募集和速率编码研究。
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