Fig. 4
From: Amplitude and frequency of human gait synchronization with a machine oscillator system
Frequency response to TVA experiment. Filtered subject step frequency (Freq.) is shown over time (magenta is median and grey shaded region is 25–75th percentiles of data from all subjects who synchronized during the trial). Motor frequency is held constant (blue) and subject baseline preferred is indicated (dashed grey line) for reference. The prescribed motor amplitude (Amp.) is shown (red) over the course of the experiment. The number of subjects included in each data trend are indicated at the top of each subplot (N).
