Fig. 2

Experimental setup for all five sessions. The spirometer and heart rate monitor were used during every session. Position registration was only used during the first first, last, and transfer session. Treadmill speed was 1.11 m/s and power output was set at 0.21 W/kg with the pulley system. Black triangles exemplify the position of the two cluster markers. Modified figure from Vegter et al. [20]