Figure 1. Schematic diagram of the study design. BLa, blood lactate; ERG-HIIT, ergometer-based high-intensity interval training; HR, heart rate; MICT, moderate-intensity continuous training; PPO, peak power output; RPE; rating of perceived exertion; VO2peak, Peak oxygen uptake; VT1, First ventilatory threshold; VT2, Secondary ventilatory threshold; WB-HIIT, whole-body high-intensity interval training