Figure 8.

iEMG results. (A) Bars depicting the iEMG median values distribution for the subjects' three muscles while wearing the APO operating in transparent mode (i.e., session 1 and 2, green), and assistive mode (i.e., session 3, yellow). Red lines correspond to the median values, upper and lower limit of the bars are respectively the maximum and the minimum values of median iEMG. Data for subject 1 and 2 are missing because of an operating failure of the EMG recording device during the experimental sessions. (B) Bars pointing at the percentage variations of the iEMG values in assistive mode with respect to the median values of transparent mode for the three muscles under investigation. Upper and lower limits of the bar are respectively the minimum and maximum variation achieved among subjects.