| 6MWT | ESWT | CET | ||||||||||
| Pre-placebo | Post-placebo | Pearson R2 | CV % | Pre-placebo | Post-placebo | Pearson R2 | CV % | Pre-placebo | Post-placebo | Pearson R2 | CV % | |
| Distance m | 445±97 | 440±98 | 0.95 | 3 | 424±312 | 452±342 | 0.70 | 18 | NA | NA | NA | NA |
| Time s | NA | NA | NA | NA | 373±236 | 392±278 | 0.71 | 14 | 179±121 | 165±115 | 0.93 | 13 |
| HR beats·min−1 | 124±22 | 126±22 | 0.93 | 3 | 128±19 | 127±20 | 0.89 | 2 | 135±22 | 135±23 | 0.90 | 2 |
| V ′O2 mL·min−1 | 924±234 | 932±274 | 0.94 | 4 | 965±243 | 977±246 | 0.77 | 4 | 943±266 | 938±285 | 0.80 | 4 |
| V ′CO2 mL·min−1 | 1000±303 | 986±328 | 0.95 | 5 | 1061±268 | 1066±287 | 0.84 | 5 | 1183±362 | 1171±391 | 0.96 | 4 |
| RER | 1.08±0.13 | 1.05±0.11 | 0.69 | 4 | 1.11±0.12 | 1.10±0.12 | 0.57 | 4 | 1.26±0.13 | 1.25±0.13 | 0.74 | 4 |
| V ′E L·min−1 | 47±10 | 48±10 | 0.79 | 5 | 53±8 | 53±8.11 | 0.48 | 6 | 56±10 | 56±12 | 0.71 | 4 |
| V ′E/ V ′CO2 | 50±17 | 52±20 | 0.96 | 5 | 54±18 | 53±18 | 0.93 | 5 | 51±14 | 51±15 | 0.96 | 3 |
| V ′O2/HR mL·beat−1 | 7.5±2.0 | 7.6±2.4 | 0.89 | 5 | 7.8±2.1 | 7.8±2.0 | 0.92 | 4 | 7.1±2.0 | 7.0±2.1 | 0.92 | 4 |
| S pO2% | 85±8 | 86±8 | 0.97 | 1 | 86±7 | 86±8 | 0.85 | 2 | 86±9 | 87±8 | 0.80 | 2 |
6MWT: 6-min walk test; ESWT: endurance shuttle walk test; CET: cycle endurance test; CV: coefficient of variation; HR: heart rate; V′O2: oxygen uptake; V′CO2: carbon dioxide production; RER: respiratory exchange ratio; V′E: minute ventilation; V′E/V′CO2: ventilatory equivalent for carbon dioxide; V′O2/HR: oxygen pulse; SpO2; arterial oxygen saturation measured by pulse oximetry; NA: not applicable.