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TITLE Submaximal exercise intensity modulates acute post-exercise heart rate variability
AUTHORS Scott Michael1, Ollie Jay1 FACSM, Mark Halaki1, Kenneth Graham2 and Glen M Davis1 OAM FACSM INSTITUTION 1. Discipline of Exercise and Sports Science, Faculty of Health Sciences, The University of Sydney, Australia 2. New South Wales Institute of Sport, Australia CORRESPONDING AUTHOR Scott Michael C103, Cumberland Campus Faculty of Health Sciences The University of Sydney Lidcombe NSW 2141 AUSTRALIA Telephone: +61 2 9351 9628 Email:
[email protected]
ACKNOWLEDGEMENTS The authors would like to thank the participants who volunteered for this study.
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ABSTRACT Purpose: This study investigated whether short-term heart rate variability (HRV) can be used to differentiate between the immediate recovery periods following three different intensities of preceding exercise. Methods: 12 males cycled for 8-min at three intensities: LOW (40-45%), MOD (75-80%) and HIGH (90-95%) of heart rate (HR) reserve. HRV was assessed during exercise and throughout 10-min seated recovery. Results: 1-min HR recovery was reduced following greater exercise intensities when expressed as R-R interval (RRI, ms) (p
