Fig. 6
From: Effect of post-stroke spasticity on voluntary movement of the upper limb
HD, log-BKLD, and mean elbow velocity by TSRT. Top: Quadratic regression fit to all the data; Middle: Quadratic regression fit to data from non-severe subjects (FMA-UE scores above 31); Bottom: Linear regression fit to severe data (FMA-UE scores between 0 and 30). Significance of differences between linear and quadratic regression marked below figures. Dots represent individual participant data. Red dots represent severe impairment (FMA-UE scores between 0 and 30), green dots represent moderate impairment (FMA-UE scores between 31 and 50), and blue dots represent mild impairment (FMA-UE scores between 51 and 66) [41, 42]. In the bottom figures, data of a subject with severe impairment and very low TSRT but low HD and log-BKLD scores marked in black. The data of this subject was not used in the regression fit of the severe data. HD Hellinger’s distance, BKLD bidirectional Kullback–Liebler divergence, TSRT tonic stretch reflex threshold, FMA-UE Fugl-Meyer assessment scale of the upper extremity. F-test for quadratic vs linear regression fit presented below each graph; Significance levels: *p < 0.05; **p < 0.01; ***p < 0.001