Hematological, skeletal muscle fiber, and exercise performance adaptations to heat training in elite female and male cyclists

We demonstrate in elite female and male cyclists that heat exercise training (5 × 50 min sessions/wk for 5 wk) facilities Hb mass and other hematological parameters more than control exercise training, whereas skeletal muscle properties remain unaltered. Collectively, this coincided with improvements in lactate threshold, V̇o 2max , and 15-min all-out cycling performance.