Effects of Exercise Training on Baroreflex Control of the Cardiovascular System

  1. EDUARDO MOACYR KRIEGER1,*,
  2. GUSTAVO JOSÉ JUSTO Da SILVA1 and
  3. CARLOS EDUARDO NEGRÃO2

Article first published online: 25 JAN 2006

DOI: 10.1111/j.1749-6632.2001.tb03689.x

Issue

Annals of the New York Academy of Sciences

Annals of the New York Academy of Sciences


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How to Cite

KRIEGER, E. M., Da SILVA, G. J. J. and NEGRÃO, C. E. (2001), Effects of Exercise Training on Baroreflex Control of the Cardiovascular System. Annals of the New York Academy of Sciences, 940: 338–347. doi: 10.1111/j.1749-6632.2001.tb03689.x

Author Information

  1. 1

    Unit of Hypertension, Heart Institute (InCor), Medical School, University of São Paulo, Sãao Paulo, Brazil

  2. 2

    Unit of Cardiovascular Rehabilitation and Exercise Physiology, Heart Institute (InCor), Medical School, and Laboratory of Exercise Physiology, School of Physical Education and Sports, University of São Paulo, São Paulo, Brazil

*Address for correspondence: Eduardo Moacyr Krieger, M.D., Ph.D., Unidade de Hipertensão, InCor-Instituto do Coração da Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 44, São Paulo, Brazil, 05403-000. Voice: 55 11 30695048/5391; fax: 55 11 30695048; edkrieger@incor.usp.br.

Publication History

  1. Issue published online: 25 JAN 2006
  2. Article first published online: 25 JAN 2006

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Keywords:

  • Baroreceptor reflex;
  • Exercise training;
  • Sympathetic nerve activity;
  • Hypertension;
  • Spontaneously hypertensive rat (SHR)

Abstract: Dynamic exercise training has been recommended as an antihypertensive therapy and as a way to modify the effects of many cardiovascular risk factors (Arakawa, 1993; Arroll and Beaglehole, 1992; Kelly and McClellan, 1994: see references 1–3 in the paper). However, the mechanisms underlying the blood-pressure lowering effect of chronic exercise are still poorly understood. It has been suggested that a decrease in sympathetic tone is one of the major effects elicited by chronic exercise on the cardiovascular system. The importance of the sympathetic component is confirmed in this review, since it was found that in spontaneously hypertensive rats (SHR) a marked decrease in sympathetic activity occurred after exercise training. Moreover, our findings suggest that this effect is mediated by improving the depressed baroreceptor function, which is, in part, responsible for the attenuation of the baroreflex sensitivity observed in the sedentary SHR (Krieger et al., 1998, 1999; see references 4 and 5 in the paper).

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