Figure 1. Time course of the exercise protocol. Warming-up consisted of 12-min cycling at 60% VO (extensive warm-up; EWU) or included three high intensity phases of 10 s at 200% of VO (dashed lines) additionally (intensive warm-up; IWU) followed by a passive resting phase of 5 min. Afterwards subjects performed a 30 s all-out exercise. Blood samples were taken under resting conditions (R), directly after warming-up (WU), after 4 min of rest (pre), directly after exercise (0’) and in minute intervals during recovery (1’-15’). Arrows on top assign blood samples.