Fig. 4

SNR of EMG, linear regression, and MKF output. The MKF had significantly higher SNR than EMG alone and the linear regressor. Data are aggregated across all patient groups (control, nonparetic, and paretic) as well as both motions (flexion and extension). Data are shown on a logarithmic y-axis. Box plots show the median, interquartile range, and most extreme non-outlier values. Circles denote outliers. Triple asterisk (***) denotes p < 0.001, pairwise rank-sum tests with correction for multiple comparisons. N = 10 control participants and 10 stroke participants (nonparetic and paretic)