Pedaling Performance Changing of Elite Cyclists Is Mainly Determined by the Fatigue of Hamstring and Vastus Muscles during Repeated Sprint Cycling Exercise

Figure 4

EMG MNF of each muscle calculated for every 2 seconds during five repeated sprint cycling exercise. The results for each bout were separated by dashed lines. means a significant main effect of sprint number, while ▲ means a significant main effect of intrasprint duration time on EMG MNF, while # and $ indicate significant negative correlation between EMG MNF and sprint number or intersprint duration time.

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