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Figure 7 | Journal of NeuroEngineering and Rehabilitation

Figure 7

From: Vibration-induced extra torque during electrically-evoked contractions of the human calf muscles

Figure 7

Output plantarflexion force, soleus EMG, M max and F-waves generated at rest and after the delivery of a single vibratory burst. A) Average plantarflexion torque as a function of time (n = 8, thick line, with SD shown in light shade) and EMG from the soleus muscle (from one of the subjects) in response to a single burst of vibration (2 s of 100 Hz sinusoidal waves). The arrows indicate the times (rest, Time 1, Time 2 and Time 3) at which the Mmax and F-waves shown in (B) were obtained. B) F-waves and Mmax recorded from the soleus muscle (10 superimposed repetitions are shown and data were taken from a representative subject) at different times after the vibration (Time 1, Time 2 and Time 3) and at rest. C) Peak-to-peak amplitude (n = 10, ± SEM) of the F-waves (black squares, expressed in the right axis as % of Mmax) and the Mmax responses (light gray circles, expressed in the left axis in mV) obtained at rest and at Time 1 to Time 3 after the vibration was turned off (as represented in A). Data are from three different subjects.

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