LIMITS TO EXERCISE PERFORMANCE IN THE HEAT

Exercise in the heat results in major alterations in circulatory, ther moregulatory and metabolic function. Hyperthermia appears to be the cr itical determinant of exercise performance in the heat. Thus, strategi es that minimise the rise in core temperature during exercise in the h eat are likely to contribute to enhanced performance. These include ac climatisation to heat, adequate hydration prior to exercise and ingest ion of fluids during exercise, and pre-exercise cooling.