Fig. 2
From: Test-retest reliability of fMRI experiments during robot-assisted active and passive stepping
Motor performance and its reliability during passive and active40 stepping. Motor performance at session 1 (t1) and 2 (t2) and root mean squared error (RMSE) of differences between t1 and t2 of the individual participants during passive (left column) and active40 (right column) stepping. a knee amplitude, b stepping frequency and (c) foot force. Rows 1, 3, 5: mean ± one standard deviation at t1 and t2. Rows 2, 4, 6: RMSE of differences between t1 and t2