Fig. 2.

Force and moments evoked by in situ muscle stimulation in the rat hindlimb. (A) Recorded forces and moments evoked by stimulation of the posterior head of biceps femoris (BFp) for one trial. Force and moment quickly reached plateau levels at the onset of the stimulation and returned to baseline levels after the end of the stimulation. (B) Magnitudes of the evoked force of biceps femoris across a range of current levels. As the current level increases, the force reached a plateau level (around 0.13 mA) and did not increase further, suggesting that the muscle was maximally activated after 0.13 mA. (C) Variation of evoked force and moment by biceps femoris in the same limb configuration across five repeated trials, separated by 8, 12, 12 and 14 min.