3.1. Sample
Thirty-seven volunteers were selected. From the first sample, five of them showed alteration in the screening tests, and nine volunteers started the training protocol but did not complete it for medical or personal reasons. Twenty-three completed the protocol and all procedures, and were allocated into two groups, EXP and CON, after random selection. The details of the flowchart are shown in The participants were not different by age (EXP 66 ± 5 vs. CON 64 ± 4 years old; 