Sherman, R. A., & Batterham, A. M. (2006). Influence of pre-cooling on skill performance during intermittent exercise in the heat. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 824.

This study examined the influence of whole body pre-cooling on skill performance during simulated squash match play in the heat. Male squash players (N = 6) were either pre-cooled for 60 minutes in a cool water shower or rested for 60 minutes before performing a skill test, or a 55-minute simulated squash match in the heat (28ºC) followed by a second skill test. By replicating shots performed in a match, skill performance was assessed using accuracy of a squash ball hitting pre-determined targets on a court floor.

Pre-cooling did not affect shot accuracy in the skill-test alone condition. Pre-cooling diminished the skill decrement (increased targets hit and reduced failure) at the end of intermittent exercise in heat. Throughout exercise, core temperature was lower and heat storage was greater following pre-cooling. Heart rate and perceived exertion were also lower.

Implication. Whole body pre-cooling is associated with improved skill performance at the end of extended exercise in the heat.

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