Effect of exercise mode on heart rate variability during steady state exercise

Leicht, Anthony S., Sinclair, Wade H., and Spinks, Warwick L. (2008) Effect of exercise mode on heart rate variability during steady state exercise. European Journal of Applied Physiology, 102 (2). pp. 195-204.

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Abstract

This study examined the effect of exercise mode on geometrical, and time and frequency domain measures of heart rate variability (HRV) during steadystate, moderate intensity exercise of the same HR. Seventeen healthy, active male participants volunteered for this study and completed a treadmill VO2max determination. One week later, cardiorespiratory, perceptual and HRV measures were recorded during seated rest (15 min) and consecutive bouts (15 min) of steady-state exercise at 50 and 65% of maximal HR. Exercise was performed using either upper body (arm ergometer), lower body (cycle) or whole body (treadmill) modes. Separated by 1 week and in a random order, participants undertook the same procedures with the remaining exercise modes. Cardiorespiratory, perceptual and HRV responses were determined during rest and steady-state exercise and analysed by twoway (mode vs. stage) repeated measures ANOVA and post hoc pairwise comparisons. Apart from a reduced respiratory rate during lower body exercise, whole and lower body exercise resulted in similar cardiorespiratory, perceptual and HRV responses. Compared to whole or lower body exercise, upper body exercise resulted in significantly (P\0.05) greater measures of HRV particularly those within the very low (0–0.04 Hz) and low (0.04–0.15 Hz) frequency bands, greater rating of perceived exertion and less oxygen consumption. Upper body, moderate intensity exercise resulted in greater HRV compared to whole or lower body exercise with further studies necessary to elucidate the mechanisms and clinical implications for this greater HRV.

Item ID: 6309
Item Type: Article (Refereed Research - C1)
Keywords: cardiac autonomic control; parasympathetic nervous system; exercise type; relative exercise intensity
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ISSN: 1439-6327
Date Deposited: 10 Feb 2010 00:47
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1106 Human Movement and Sports Science > 110602 Exercise Physiology @ 80%
11 MEDICAL AND HEALTH SCIENCES > 1109 Neurosciences > 110901 Autonomic Nervous System @ 20%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
Citation Count from Web of Science Web of Science 7
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