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Figure 4


Fig. 4. Mean fascicle length change (A), muscle–tendon complex (MTC) length change (B) and smoothed GM EMG (C) of 10 subjects of one full descending stride cycle for all four step-heights: decreased 50% (dotted lines), standard (thin lines), increased 50% (thick lines) and increased 75% (thick broken lines). The fascicular behaviour was analyzed during touch-down (from 0 to ~14% stride cycle). Vertical lines indicate foot-contact times [lift-off (LO) right, touch-down (TD) right and LO left] for all four step-heights, whereas 0 and 100% of the stride cycle indicate TD of the left (analyzed) foot. Standard deviations (s.d.) were similar for all step-heights. For clarity, only positive s.d. of fascicle length change are plotted for the decreased 50% step-height.





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