Why the study?
Does augmented sympathoexcitation via muscle metaboreflex activation slow postexercise heart rate recovery in young healthy adults and canines?
Does augmented sympathoexcitation via muscle metaboreflex activation slow postexercise heart rate recovery in young healthy adults and canines?
Augmented sympathoexcitation is a key physiological mechanism that slows postexercise heart rate recovery, an effect that can be reversed by sympathoinhibition.
Answers are grounded in this paper and cite their sources.
Sympathoexcitation may modulate postexercise recovery in canines; hypothesis-generating for human autonomic mechanisms.
Augmented sympathoexcitation, via muscle metaboreflex activation, functionally slows heart rate recovery in both young healthy adults and chronically instrumented canines. Furthermore, elevated sympathoexcitation corresponded with lower parasympathetic activity, as assessed by heart rate variability, during the first 3 min of recovery. Finally, sympathoinhibition, via phenylephrine infusion, normalizes heart rate recovery during muscle metaboreflex activation.
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Boyes et al. (2023) studied this question.
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