Scheme A1

Diagram of analyses. The figures in the diagram represent: 1) the measurement data sets obtained in the initial state (I), after effort (E) and after restitution (R); 2) the relative changes between them (I-E, I-R) in one measuring session; 3) the relative changes between the 1st and the 2nd measuring session (I-I, I-E, I-R); and 4) the resulting differences between before-after relative changes or values in initial states for the supplemented and the placebo group (green ovals)