Some central and peripheral factors affecting human motoneuronal output in neuromuscular fatigue
Deutscher übersetzter Titel: | Einige zentrale und periphere Faktoren, die die motoneuronale Aktivitaet bei Muskelermuedung beim Menschen beeinflussen |
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Autor: | Gandevia, S.C. |
Erschienen in: | Sports medicine |
Veröffentlicht: | 13 (1992), 2, S. 93-98, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0112-1642, 1179-2035 |
DOI: | 10.2165/00007256-199213020-00004 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199207057140 |
Quelle: | BISp |
Abstract
Fatigue may be defined as a reduction in the maximal force-generating capacity of a muscle. It may result from peripheral processes distal to the neuromuscular injection and from central processes controlling the discharge rate of motoneurons. When assessed with a sensitive test using twitch interpolation, most maximal voluntary contractions approach but do not attain optimal muscle output. During fatigue, reflex inputs from intramuscular receptors may contribute to a decline in motor unit discharge rate - a decline which optimises force production during maximal efforts. Further studies should investigate how the central nervous system controls the discharge rate of motor units during fatigue produced by different forms of exercise. Verf.-Referat