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

*この研究の対応する著者

研究成果: Article査読

28 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)370-380
ページ数11
ジャーナルPsychophysiology
40
3
DOI
出版ステータスPublished - 2003 5

ASJC Scopus subject areas

  • 神経科学(全般)
  • 神経心理学および生理心理学
  • 実験心理学および認知心理学
  • 神経学
  • 内分泌系および自律システム
  • 発達神経科学
  • 認知神経科学
  • 生物学的精神医学

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