Rodrigues, L. O., Castro-Pinto, K. M., Viveiros, J. P., & Silami-Garcia, E. (2001). Temperature of the ingested water on fatigue during exercise until exhaustion in a thermoneutral environment. Medicine and Science in Sports and Exercise, 33(5), Supplement abstract 785.

Healthy males (N = 6) performed a submaximal (60% VO2max) cycle exercise to exhaustion on three occasions. Water intake during exercise consisted of temperatures of 38, 24, or 10 degrees Celsius.

There were no differences between the experimental conditions for time to exhaustion, heart rate, rectal and skin temperatures, oxygen uptake, and heat storage.

Implication. The temperature of ingested water does not affect exercise related variables or time to exhaustion in extended aerobic work.

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