Fig. 2.

Proportion of patients with HFrEF in four performance levels based on the distance walked (a) and changes in individual patient data in four performance levels (b) at baseline, 3- and 6-month (M) follow-up (FU). Colours indicate four different performance levels; level 1 (the lowest performance level), level 4 (the highest performance level). Numbers from 1 to 11 indicate patients in group 1 assigned to 6-month SLOWB home training, numbers from 12 to 21 indicate patients in group 2 who underwent 3-month SLOWB home training and then a 3-month observation period (b). In group 2, two patients died (boxes marked without colour) between 3- and 6-month (M) follow-up (FU)