Adjusting for muscle strength and body size attenuates sex differences in the exercise pressor reflex in young adults

Author:

Tharpe McKenna A.1ORCID,Linder Braxton A.1ORCID,Babcock Matthew C.23ORCID,Watso Joseph C.24ORCID,Pollin Kamila U.25,Hutchison Zach J.1,Barnett Alex M.1ORCID,Culver Meral N.1ORCID,Kavazis Andreas N.1ORCID,Brian Michael S.26,Robinson Austin T.12ORCID

Affiliation:

1. Neurovascular Physiology Laboratory, School of Kinesiology, Auburn University, Auburn, Alabama, United States

2. Department of Kinesiology and Applied Physiology, University of Delaware, Newark, Delaware, United States

3. Division of Geriatric Medicine, Anschutz Medical Campus, University of Colorado Denver, Aurora, Colorado, United States

4. Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, Florida, United States

5. War-Related Injury and Illness Study Center, Veterans Affairs Medical Center, Washington, District of Columbia, United States

6. Department of Kinesiology, University of New Hampshire, Durham, New Hampshire, United States

Abstract

When compared with young males, females typically exhibit lower blood pressure (BP) during exercise. Adjusting for maximal strength attenuates sex differences in BP during isometric handgrip (HG) exercise and postexercise ischemia (PEI), but the contribution of body size is unknown. Novel findings include adjustments for muscle strength and body size attenuate sex differences in BP reactivity during exercise and PEI, and sex differences in body size contribute to HG strength differences.

Funder

HHS | NIH | National Center for Advancing Translational Sciences

HHS | National Institutes of Health

Publisher

American Physiological Society

Subject

Physiology (medical),Cardiology and Cardiovascular Medicine,Physiology

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