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Fig. 2. Representative fascicle length and EMG for the ILPO (A) and the FT (B) for
one individual running at 2 m s1 on the level. Shaded areas
represent stance. Muscle lengths are presented as a fraction of
Lo, calculated as the average muscle length over a stride.
Broken lines on the third stride indicate the period of stance lengthening (L)
and shortening (S) for which all measurements in this study were taken.