Effect of isometric hand grip exercise on the carotid sinus baroreceptor reflex in man

G. Mancia, J. Iannos, G. G. Jamieson, R. H. Lawrence, P. R. Sharman, J. Ludbrook

Research output: Contribution to journalArticle

Abstract

The changes in R-R heart interval that result from step-increase and step-decrease in carotid sinus transmural pressure induced by a variable-pressure neck chamber were measured in seven normal men. Observations were made at rest, and during isometric hand-grip exercise at 24%, 44% and 64% of maximal voluntary contraction. The response of heart interval to increase in carotid sinus transmural pressure was progressively and markedly diminished according to the strength of hand-grip. This effect was fully developed from the moment of onset of the exertion. The response of heart interval to decrease in carotid sinus transmural pressure was much less consistently affected by hand-grip exercise.

Original languageEnglish
Pages (from-to)33-37
Number of pages5
JournalClinical Science and Molecular Medicine
Volume54
Issue number1
Publication statusPublished - 1978

ASJC Scopus subject areas

  • Medicine(all)

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    Mancia, G., Iannos, J., Jamieson, G. G., Lawrence, R. H., Sharman, P. R., & Ludbrook, J. (1978). Effect of isometric hand grip exercise on the carotid sinus baroreceptor reflex in man. Clinical Science and Molecular Medicine, 54(1), 33-37.