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Figure 5


Fig. 5. The relative onset, offset and duration of the EMG bursts relative to force generation in the LG (red bars), pMG (blue bars) and dMG (black bars). Note that the onset of force is almost coincident with footfall for both the LG and MG. The upper and lower panels represent speeds of 0.5 and 2.0 m s–1, respectively. Values are means ± s.e.m. (N=4) of the EMG burst duration. Note that for all three muscle regions, the onset of EMG activity precedes the onset of force generation to a greater extent when running at 2.0 m s–1 compared with walking at 0.5 m s–1. There were no effects of incline (not shown).





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