Mielke, M., OKroy, J., Torok, D., & Zoeller, R. (2005). Oxygenated water does not improve endurance exercise performance. Medicine and Science in Sports and Exercise, 37(5), Supplement abstract 228.

Endurance athletes (N = 15) were tested using normal (placebo) and oxygenated water. Ss performed two maximal and two submaximal tests on a cycle ergometer. For three days before testing, 1200 ml of water was consumed and then 15 minutes before the actual test, the independent variable fluid was ingested.

No differences in performance or physiological measures were revealed. The oxygen content of the special water was lower than the value claimed by the manufacturer.

Implication. Oxygenated water is not ergogenic.

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