Real-time performance of the self-recovery system. (A): Real-time system performance of a segment of a representative CA trial; (B): A screenshot from the video that recorded the corresponding CA trial presented in (A). The software GUI in (B) displayed the performance of the real-time tests. The upper-left panel displayed the instructed motion, which is used to cue the subjects to elicit and relax contractions. The lower-left panel showed the detection result of individual sensor status (green: normal; red: abnormal). The upper-right and the lower-right panels displayed the classification decisions with and without the SFTM, respectively. The number in the lower-right corner was the index of current analysis window in the testing trial.