Work

Reflex origin for the slowing of motoneurone firing rates in fatigue of human voluntary contractions.

Year: 1986

Type: article

Abstract: During fatigue from a sustained maximal voluntary contraction (m.v.c.) the mean motoneurone discharge rates decline. In the present experiments we found no recovery of firing rates after 3 min of rest if the fatigued muscle was kept ischaemic, but near full recovery 3 min after the blood supply was restored. Since 3 min is thus sufficient time for recovery of any central changes in excitability, the results support the hypothesis that, during fatigue, motoneurone firing rates may be regulated by a peripheral reflex originating in response to fatigue-induced changes within the muscle.

Source: The Journal of Physiology

DOI: 10.1113/jphysiol.1986.sp016263

Authors: B R Bigland-Ritchie, N J Dawson, R S Johansson, O C Lippold

Language: English

Topic: Muscle activation and electromyography studies

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: green

Funders: National Heart, Lung, and Blood Institute, National Institute of Neurological Disorders and Stroke

Awards: MUSCULAR FATIGUE, G1157503756