Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2010) 09, 253 - 261

Research article
Autonomic Nervous Activity and Lipid Oxidation Postexercise with Capsaicin in the Humans
Ki Ok Shin , Nam Hwoeh Yeo, Sunghwun Kang
Author Information
Department of Physical Education, College of Sport Sciences, Dong-A University, Busan, Korea

Ki Ok Shin
‚úČ Department of Physical Education, College of Sport Sciences, 840 Hadan 2 dong, Saha-gu, Busan 604-714, Korea
Email: kshin21@dau.ac.kr
Publish Date
Received: 31-12-2009
Accepted: 16-03-2010
Published (online): 01-06-2010
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ABSTRACT

This study evaluated the synergistic effects of acute exercise with capsaicin (200mg) upon the restoration of cardiac autonomic functions and depolarization- repolarization interval as well as substrate oxidation. Nine healthy males [21.9(0.8) yrs] volunteered for this study. Cardiac autonomic activity, metabolic responses, and the ECG QT intervals were continuously measured during 5 min at rest and postexercise recovery after 30 min exercise at 50% VO2max on a stationary ergometer with placebo (ECON) or capsaicin intake (ECAP), and no exercise control (NCON) were randomized. Results indicated that the HF power reflecting parasympathetic activity significantly returned to the baseline much faster during ECAP than ECON trial during postexercise [122.1 (23.2) vs. 60.2 (11.7) %, p < 0.05]. The ECAP trial significantly decreased RQ [0.79(0.02) vs. 0.85 (0.03), p < 0.05] with significantly greater fat oxidation [69.3 (6.0) vs. 49.4 (10.8) %, p < 0.05] in comparison to NCON trial during 120 min postexercise recovery without any adverse effects on cardiac electrical stability as determined by trigger-averaged ECG QT interval analyses. We suggest that capsaicin before the exercise may contribute to the improvement of cardio-protective functions and metabolic responses as one of the beneficial supplements accelerating faster restoration of autonomic activity and enhanced lipolysis during postexercise recovery without any adverse effects on cardiac electrical stability.

Key words: Autonomic nervous system, heart rate variability power spectral analysis, cardiac depolarization-repolarization interval, post-exercise recovery, lipolysis


           Key Points
  • Capsaicin before exercise may contribute to the improvement of cardio-protective functions as one of the beneficial supplements accelerating faster restoration of autonomic activity
  • Capsaicin before exercise enhanced lipolysis during postexercise recovery period
  • Capsaicin intake does not influence cardiac electrical stability during recovery period.
 
 
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