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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Veröffentlicht in:	Exercise and sport sciences reviews 2019-07, Vol.47 (3), p.157-168
Hauptverfasser:	Hudson, Anna L, Gandevia, Simon C, Butler, Jane E
Format:	Artikel
Sprache:	eng
Schlagworte:	Humans Motor Neurons - physiology Movement - physiology Muscle, Skeletal - physiology Recruitment, Neurophysiological Respiratory Muscles - physiology Spinal Cord - physiology
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Zusammenfassung:	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:	0091-6331 1538-3008
DOI:	10.1249/jes.0000000000000191