A Principle of Neuromechanical Matching for Motor Unit Recruitment in Human Movement

What determines which motor units are active in a motor task? In the respiratory muscles, motor units are recruited according to their mechanical advantages. We describe a principle of motor unit recruitment by neuromechanical matching due to mechanisms in the spinal cord that sculpt descending driv...

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Bibliographic Details
Published inExercise and sport sciences reviews Vol. 47; no. 3; p. 157
Main Authors Hudson, Anna L, Gandevia, Simon C, Butler, Jane E
Format Journal Article
LanguageEnglish
Published United States 01.07.2019
Subjects
Humans
Motor Neurons - physiology
Movement - physiology
Muscle, Skeletal - physiology
Recruitment, Neurophysiological
Respiratory Muscles - physiology
Spinal Cord - physiology
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Summary:What determines which motor units are active in a motor task? In the respiratory muscles, motor units are recruited according to their mechanical advantages. We describe a principle of motor unit recruitment by neuromechanical matching due to mechanisms in the spinal cord that sculpt descending drive to motoneurons. This principle may be applicable to movements in nonrespiratory muscles.
ISSN:1538-3008
DOI:10.1249/jes.0000000000000191