3.2. Exercise capacityAfter treatment in all groups, a significant increase in metabolic equivalent of task (MET), walking time (p < 0.05) and a decrease in the baseline heart rate and maximal heart rate (p < 0.05) were found in the exercise stress test, although there was no significant difference among the groups (p > 0.05) (Table 3). The MET before and after the training in all groups is shown in Figs. 5 and 6, respectively.