Cardiac Autonomic Function Following Bilateral and Unilateral Upper Body Acute Resistance Exercise

Erica M. Marshall, Jason C. Parks, Emily K. Erb, Stacie M. Humm and J. Derek Kingsley
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Erica M. Marshall: Exercise Science, Florida Southern College, Lakeland, FL 33801, USA
Jason C. Parks: Kinesiology, State University of New York at Cortland, Cortland, NY 13045, USA
Emily K. Erb: Exercise Science and Exercise Physiology, Kent State University, Kent, OH 44242, USA
Stacie M. Humm: Exercise Science and Exercise Physiology, Kent State University, Kent, OH 44242, USA
J. Derek Kingsley: Exercise Science and Exercise Physiology, Kent State University, Kent, OH 44242, USA

IJERPH, 2022, vol. 19, issue 10, 1-9

Abstract: The purpose of this study was to compare cardiac autonomic responses following bilateral and unilateral upper-body (UB) acute resistance exercise (ARE). In total, 14 individuals were assessed for markers of cardiac autonomic responses via heart rate variability (HRV) and baroreflex sensitivity (BRS) at rest and at 10- and 30-min following ARE. Logarithmically transformed (ln) HRV measures included: total power (ln TP), high-frequency power (ln HF power), low-frequency power (ln LF power), sympathovagal balance (ln LF: HF), and the square root of the mean squared differences of successive R-R intervals (ln RMSSD). BRS was assessed using the sequence method. Two-way repeated measures ANOVAs were used to analyze effects of UB ARE (bilateral, unilateral) across time (Rest, 10, and 30 min). There were no significant ( p > 0.05) interactions. However, there were significant ( p ≤ 0.05) main effects of time such that ln TP, ln HF power, ln RMSSD, and BRS decreased and did not recover within 30 min compared to Rest for both conditions. Collectively, this study suggests that bilateral and unilateral UB ARE yielded similar reductions, for at least 30 min, in respect to vagal measures of HRV and BRS.

Keywords: heart rate variability; baroreflex sensitivity; free weights (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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