“Oxygenated” water and athletic performance

[...]for all practical purposes, supplemental O2 improves performance only during exercise, not before or between bouts. 3 With normal lungs, breathing of even pure O2 at sea level increases maximal O2 uptake ( o 2 max ) by only 5-10% because air breathing alone, except at high intensity work, keeps...

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Bibliographic Details
Published in:British journal of sports medicine 2006-09, Vol.40 (9), p.740-741
Main Author: Piantadosi, C A
Format: Article
Language:English
Subjects:
Athletes
Bottled water
Drinking water
ergogenic aids
Evidence-Based Medicine
exercise
Humans
Leader
Oxygen
Oxygen - administration & dosage
Oxygen - chemistry
oxygen consumption
oxygen delivery
Physical Endurance - physiology
Physiology
Sea level
skeletal muscle
Sports - physiology
Sports drinks
Water - chemistry
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Summary:[...]for all practical purposes, supplemental O2 improves performance only during exercise, not before or between bouts. 3 With normal lungs, breathing of even pure O2 at sea level increases maximal O2 uptake ( o 2 max ) by only 5-10% because air breathing alone, except at high intensity work, keeps the arterial O2 saturation (Sa o 2) and content (Ca o 2) very high. 2 The next problem is that the solubility of O2 in water (and plasma) is low. If that was not enough, the few clinical trials that have been carried out on oxygenated water provide no evidence of a significant physiological or ergogenic effect. [...]an enterprising entrepreneur works out a method to supersaturate water with oxygen and make it stay in solution, even when taken to altitude, and shows that its ingestion can significantly raise Ca o 2, it is unlikely that oxygenated water will find its way into the packs of climbers and athletes working or recreating at altitude.
ISSN:0306-3674
1473-0480
DOI:10.1136/bjsm.2006.028936