Fig. 5
(a) EMG decomposition examples. In (i), we randomly chose a session containing 3 tasks, then chose Trial 1 from each task (S13_Day3_Session1_Task1/2/3_Trial1.mat). The HD-sEMG data of these 3 trials was decomposed to extract motor unit spike trains (MUSTs). Black lines represent simultaneously recorded force data. In (ii), we randomly chose a trial as an example (S3_Day3_Trial1.mat). We segmented the data into 11 sections and decomposed each section separately. (b) Decomposition results: No. MUs and PNR values of GRASP-(i), (ii) and GESTURE-(iii), (iv). (i) Boxplot for No. MUs distribution on multiple days (GRASP). (ii) Boxplot for PNR values of MUSTs distribution on multiple days (GRASP). (iii) Boxplot for No. MUs distribution on multiple days (GESTURE). (iv) Boxplot for PNR values of MUSTs distribution on multiple days (GESTURE).
