Blood pressure and muscle sympathetic nerve activity during cold pressor stress: Fitness and gender

Rod K. Dishman, Yoshio Nakamura, Erica M. Jackson, Chester A. Ray

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We examined putative autonomic and hemodynamic mechanisms that might explain our prior finding that cardiorespiratory fitness mitigates blood pressure responses by normotensive women during the hand cold pressor test. We report that fitness level was inversely related to increases in systolic and diastolic blood pressures and muscle sympathetic nerve activity (MSNA) during the cold pressor among women but not men. The pattern of responses among fitter women was consistent with decreased central sympathetic outflow resulting in reduced stroke volume or dampened peripheral resistance in vascular beds other than calf skeletal muscle. Fitter men and women had slightly larger increases in blood pressure during mental arithmetic, but otherwise fitness was not directly related to stress responses. The results further encourage consideration of cardiorespiratory fitness as a modifying covariate when the hand cold pressor test is used as a predictor of future hypertension among women.

Original languageEnglish
Pages (from-to)370-380
Number of pages11
JournalPsychophysiology
Volume40
Issue number3
DOIs
Publication statusPublished - 2003 May

Fingerprint

Blood Pressure
Muscles
Hand
Vascular Resistance
Stroke Volume
Blood Vessels
Skeletal Muscle
Hemodynamics
Hypertension
Cardiorespiratory Fitness

Keywords

  • Calf blood flow
  • Cardiovascular reactivity
  • Heart rate variability
  • Vascular resistance

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)
  • Psychology(all)
  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology

Cite this

Blood pressure and muscle sympathetic nerve activity during cold pressor stress : Fitness and gender. / Dishman, Rod K.; Nakamura, Yoshio; Jackson, Erica M.; Ray, Chester A.

In: Psychophysiology, Vol. 40, No. 3, 05.2003, p. 370-380.

Research output: Contribution to journalArticle

Dishman, Rod K. ; Nakamura, Yoshio ; Jackson, Erica M. ; Ray, Chester A. / Blood pressure and muscle sympathetic nerve activity during cold pressor stress : Fitness and gender. In: Psychophysiology. 2003 ; Vol. 40, No. 3. pp. 370-380.
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