Figure 2

Signal processing: contraction time percentage (cTp). The top figure shows a single channel of a recording session that requested the repetition of a given movement 3 times with 3 seconds contraction time, and equal resting periods. The bottom figure shows the same signal trimmed to 70% of the contraction time. During signal treatment, the total of the recorded signal is segmented to extract the periods of interest. cTp can be used to include or remove transient periods.