Fig. 2From: The FreeD module for the Lokomat facilitates a physiological movement pattern in healthy people – a proof of concept studyThe study procedure presents the four walking conditions (Lokomat FreeD, Lokomat Control, treadmill, overground). The measurements started with the Lokomat conditions in randomized order, followed by the treadmill condition and ended with the overground condition. To compare the similarity of the sEMG patterns across the conditions, Spearman’s correlation coefficients were calculated for each participant separately which led to the new variables ρFT, ρFO, ρCT, ρCOBack to article page