Journal article
Effect of cold water immersion on postexercise parasympathetic reactivation
AJP: Heart and Circulatory Physiology, Vol.296(2), pp.H421-H427
2008
Abstract
The aim of the present study was to assess the effect of cold water immersion (CWI) on postexercise parasympathetic reactivation. Ten male cyclists (age, 29 ± 6 yr) performed two repeated supramaximal cycling exercises (SE1 and SE2) interspersed with a 20-min passive recovery period, during which they were randomly assigned to either 5 min of CWI in 14°C or a control (N) condition where they sat in an environmental chamber (35.0 ± 0.3°C and 40.0 ± 3.0% relative humidity). Rectal temperature (Tre) and beat-to-beat heart rate (HR) were recorded continuously. The time constant of HR recovery (HRR) and a time (30-s) varying vagal-related HR variability (HRV) index (rMSSD30s) were assessed during the 6-min period immediately following exercise. Resting vagal-related HRV indexes were calculated during 3-min periods 2 min before and 3 min after SE1 and SE2. Results showed no effect of CWI on T re (P = 0.29), SE performance (P = 0.76), and HRRt (P = 0.61). In contrast, all vagal-related HRV indexes were decreased after SE1 (P < 0.001) and tended to decrease even further after SE2 under N condition but not with CWI. When compared with the N condition, CWI increased HRV indexes before (P < 0.05) and rMSSD30s after (P < 0.05) SE2. Our study shows that CWI can significantly restore the impaired vagal-related HRV indexes observed after supramaximal exercise. CWI may serve as a simple and effective means to accelerate parasympathetic reactivation during the immediate period following supramaximal exercise.
Details
- Title
- Effect of cold water immersion on postexercise parasympathetic reactivation
- Authors/Creators
- M. Buchheit (Author/Creator) - Université de Picardie Jules VerneJ.J. Peiffer (Author/Creator)C.R. Abbiss (Author/Creator)P.B. Laursen (Author/Creator)
- Publication Details
- AJP: Heart and Circulatory Physiology, Vol.296(2), pp.H421-H427
- Publisher
- American Physiological Society
- Identifiers
- 991005540934807891
- Copyright
- © 2009 the American Physiological Society
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- 1 Clinical & Life Sciences
- 1.218 Autonomic Regulation
- 1.218.642 Heart Rate Variability
- Web Of Science research areas
- Cardiac & Cardiovascular Systems
- Peripheral Vascular Disease
- Physiology
- ESI research areas
- Clinical Medicine