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Figure 4


Fig. 4. Representative muscle fascicle strain and activation patterns from wallaby #3 during level and incline hopping at (A,B) 3.3 and (C,D) 4.2 m s–1. Shaded regions indicate stance phase. Muscle fascicle strain was recorded from one sight in the biceps femoris (BF) and two sights in the vastus lateralis, proximally (VLprox) and distally (VLdist). In general, both muscles exhibited decreased initial stretch followed by increased shortening during incline as compared with level hopping. There were no significant differences in fascicle strain due to speed. Note: the second EMG electrode in the VL (bottom trace) did not provide reliable data in these trials.





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