Fig. 2.

Overview of the four models used for statistical analyses. Shading (white, grey, and black) identifies arms that are collapsed within each model. Red font helps to identify control arms. c = control; CT = cognitive training; PC = pure control; PE = physical exercise; SYN = synergic; VD = vitamin D. Post-hoc testing in model two: A) Collapsed Arms3-4 vs Arm5; B) Collapsed Arms1-2 vs Arm5; C) Collapsed Arms1-2 vs Collapsed Arms3-4. No post-hoc test in model 3 as comparison of all three groups identified no significant differences