Team sport athletes are at risk of training and competing in a state when fluid losses are large and/or there are challenges with fluid availability or opportunity to drink. Technical skill and cognitive function are essential to team sport athlete performance and may be impaired with hypohydration, especially when combined with heat stress. The mechanism of cognitive impairment with hypohydration is not fully understood. Decrements in cognitive function, skill and physical performance in team sports are more likely to occur when hypohydration levels are > 2% body mass loss, but there is significant inter-individual variability in the effect of hypohydration on team sport performance.
Commission on Dietetic Registration