Fig. 8. Summary histogram showing the mean timing of force and EMG of the wallaby lateral gastrocnemius (LG) and plantaris (PL) muscles during level versus incline hopping. Because no significant timing differences were observed at 3.3 m s^-1 versus 4.2 m s^-1, trials were pooled for these two speeds and averaged among the four animals. Error bars represent ±1 S.E.M.