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Le bicarbonate diminue le stress induit par l'entraînement

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Le bicarbonate diminue le stress induit par l'entraînement

Messagepar Nutrimuscle-Conseils » 15 Jan 2013 22:17

The physiological stress response to high-intensity sprint exercise following the ingestion of sodium bicarbonate
European Journal of Applied Physiology January 2013, Volume 113, Issue 1, pp 127-134 Daniel J. Peart

The purpose of this study was to investigate the effects of pre-exercise alkalosis on the physiological stress response to high-intensity exercise. Seven physically active males (age 22 ± 3 years, height 1.82 ± 0.06 m, mass 81.3 ± 8.4 kg and peak power output 300 ± 22 W) performed a repeated sprint cycle exercise following a dose of 0.3 g kg−1 body mass of sodium bicarbonate (NaHCO3) (BICARB), or a placebo of 0.045 g kg−1 body mass of sodium chloride (PLAC). Monocyte-expressed heat shock protein 72 (HSP72) and plasma thiobarbituric acid reactive substances (TBARS) were significantly attenuated in BICARB compared to PLAC (p = 0.04 and p = 0.039, respectively), however total anti-oxidant capacity, the ratio of oxidised to total glutathione, cortisol, interleukin 6 and interleukin 8 were not significantly induced by the exercise. In conclusion, monocyte-expressed HSP72 is significantly increased following high-intensity anaerobic exercise, and its attenuation following such exercise with the ingestion of NaHCO3 is unlikely to be due to a decreased oxidative stress.
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