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Titolo:
NEURAL CONTROL IN HUMAN MUSCLE FATIGUE - CHANGES IN MUSCLE AFFERENTS,MOTO NEURONS AND MOTO CORTICAL DRIVE
Autore:
GANDEVIA SC;
Indirizzi:
PRINCE WALES MED RES INST,HIGH ST SYDNEY NSW 2031 AUSTRALIA UNIV NEW S WALES SYDNEY NSW AUSTRALIA
Titolo Testata:
Acta Physiologica Scandinavica
fascicolo: 3, volume: 162, anno: 1998,
pagine: 275 - 283
SICI:
0001-6772(1998)162:3<275:NCIHMF>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAXIMAL VOLUNTARY CONTRACTIONS; TRANSCRANIAL MAGNETIC STIMULATION; SPONTANEOUSLY HYPERTENSIVE RAT; MOTONEURON FIRING RATES; GROUP-IV AFFERENTS; CAT TRICEPS SURAE; GROUP-III; MUSCULAR-CONTRACTION; EVOKED-POTENTIALS; DECEREBRATE CATS;
Keywords:
CENTRAL FATIGUE; CORTICAL STIMULATION; FATIGUE; INHIBITION; MOLE NEURONS; MOTO CORTEX; MUSCLE SPINDLES; REFLEXES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
83
Recensione:
Indirizzi per estratti:
Citazione:
S.C. Gandevia, "NEURAL CONTROL IN HUMAN MUSCLE FATIGUE - CHANGES IN MUSCLE AFFERENTS,MOTO NEURONS AND MOTO CORTICAL DRIVE", Acta Physiologica Scandinavica, 162(3), 1998, pp. 275-283

Abstract

To understand the neural factors which contribute to fatigue, it is not satisfactory to regard fatigue as occurring only when a task can nolonger be performed. Changes in muscle afferent feedback, mote neuronal discharge, mote cortical output, and perceived effort develop well before an endurance limit in limb muscles. During sustained maximal contractions the discharge of mote neurones declines, commonly to below the level required to produce maximal force from the muscle whose contractile speed is usually slowed. Thus, some 'central' fatigue develops. Recent findings using transcranial stimulation have revealed that the mote cortex is one site at which suboptimal output develops during human muscle fatigue. There is a need to study the reflex effects on mote neurones and the excitability of the mote cortex in experimental animals, as well as to apply rigorous methods to assess these processes in voluntary exercise in human subjects.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 00:31:37