文章基本信息

标题：Human neuromuscular structure and function in old age: A brief review
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作者：Geoffrey A. Power ; Brian H. Dalton ; Charles L. Rice 等
期刊名称：Journal of Sport and Health Science
印刷版ISSN：2095-2546
出版年度：2013
卷号：2
期号：4
页码：1-12
DOI：10.1016/j.jshs.2013.07.001
出版社：Elsevier
摘要：Natural adult aging is associated with many functional impairments of the human neuromuscular system. One of the more observable alterations is the loss of contractile muscle mass, termed sarcopenia. The loss of muscle mass occurs primarily due to a progressive loss of viable motor units, and accompanying atrophy of remaining muscle fibers. Not only does the loss of muscle mass contribute to impaired function in old age, but alterations in fiber type and myosin heavy chain isoform expression also contribute to weaker, slower, and less powerful contracting muscles. This review will focus on motor unit loss associated with natural adult aging, age-related fatigability, and the age-related differences in strength across contractile muscle actions.
关键词：Aging ; Eccentric ; Force ; Motor unit ; Muscle atrophy ; Power ; Residual force enhancement ; Sarcopenia ; Velocity