Clinical Autonomic Research

, 16:61

The effects of exercise training on myocardial adrenergic and muscarinic receptors

Authors

    • Laboratory of Physiology and Biomechanics of Muscular ExerciseUFR-APS, University of Rennes 2
    • G. I. S. “Sciences of Movement”
  • Sylvia Reland*
    • G. I. S. “Sciences of Movement”
    • EA 3194—Cardiovascular Research Group, Laboratory of Medical Physiology, Faculty of MedicineUniversity Rennes 1
  • Nathalie Ville
    • Laboratory of Physiology and Biomechanics of Muscular ExerciseUFR-APS, University of Rennes 2
    • G. I. S. “Sciences of Movement”
    • EA 3194—Cardiovascular Research Group, Laboratory of Medical Physiology, Faculty of MedicineUniversity Rennes 1
  • Françoise Rannou-Bekono
    • Laboratory of Physiology and Biomechanics of Muscular ExerciseUFR-APS, University of Rennes 2
    • G. I. S. “Sciences of Movement”
  • Sara Wong
    • Signal and Imagery Processing LaboratoryINSERM U 642, University Rennes 1
  • François Carré
    • G. I. S. “Sciences of Movement”
    • EA 3194—Cardiovascular Research Group, Laboratory of Medical Physiology, Faculty of MedicineUniversity Rennes 1
SHORT COMMUNICATION

DOI: 10.1007/s10286-006-0312-0

Cite this article as:
Barbier*, J., Reland*, S., Ville, N. et al. Clin Auton Res (2006) 16: 61. doi:10.1007/s10286-006-0312-0
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Abstract

We investigated the effects of exercise training on heart rate variability (HRV) and myocardial adrenergic and muscarinic receptors in rats. Exercise training induced a decrease in body mass while ventricular size remained unchanged, a development we considered as a relative cardiac hypertrophy. In addition, there was a reduction in the density of myocardial β1-adrenergic receptors. These structural changes were associated with functional adaptations, as illustrated by the increased response of the sinus node to sympathetic blockade.

Key words

heart rate variabilitymyocardial receptorsphysiological cardiac hypertrophyexercise training
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© Steinkopff-Verlag 2006