Group

Cases

Time

6 MWT (m)

Borg index

Control group

49

Pre-intervention

522.33 ± 69.87

0.57 ± 0.20

Post-intervention

466.92 ± 64.27

1.08 ± 0.51

Observation group

49

Pre-intervention

528.41 ± 68.41

0.58 ± 0.19

Post-intervention

524.76 ± 62.76^①

0.73 ± 0.32^①