Hyperthermia during exercise – a double-edged sword

Abstract

AbstractPrevious studies have reported that various types of exercise cause a significant increase in blood viscosity. However, they did not account for the potential effect that exercise-induced hyperthermia might have on mitigating the change in blood viscosity. Our results suggest that hemoconcentration and hyperthermia counterbalance each other so there is no overall change in blood viscosity during prolonged exercise in the heat.