Figure 5

Activity of lower limb muscles across workloads. Mean EMG burst onset, offset, and duration of activity of all participants’ EMG linear envelopes of rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), and gastrocnemius medialis (GT) across the three workload levels of (a) 0 W, (b) 50 W, and (c) 100 W. Movement of the pedal is assumed clockwise (CW) in all conditions, starting from TDC. Error bars represent one standard deviation (SD) of the mean onset or offset.