TABLE 3.
Baseline, follow-up and change in V̇O2peak, and analyses testing for proportional bias and associations between changes in V̇O2peak values measured by CPET and those predicted by estimation methods.
| Baseline Mean ± SD n | Follow-up Mean ± SD n | Change Mean ± SD n | Linear regression (to test for proportional bias in changes in V̇O2peak values measured by CPET and those predicted by estimation methods) | Correlations (to test for associations between changes in V̇O2peak values measured by CPET and those predicted by estimation methods) | |
| CPET (mL.kg–1.min–1) | 25.9 ± 6.3 | 30.0 ± 6.7 | 3.6 ± 5.5∗ | – | – |
| n = 50 | n = 46 | n = 46 | |||
| Modified Bruce Treadmill Test (mL.kg–1.min–1) | 29.3 ± 9.2 | 32.4 ± 13.9 | 3.5 ± 12.5 | F = 27.382, p < 0.001 | r = 0.202, p = 0.356 |
| n = 34 | n = 31 | n = 23 | |||
| Astrand-Ryhming Cycle Ergometer Test (mL.kg–1 min–1) | 31.3 ± 7.0 | 32.5 ± 6.4 | 2.5 ± 5.7 | F = 0.521, p = 0.487 | r = −0.313, p = 0.322 |
| n = 19 | n = 21 | n = 12 | |||
| Chester Step Test (mL.kg–1.min–1) | 30.4 ± 5.6 | 32.4 ± 6.3 | 1.9 ± 5.0 | F = 0.188, p = 0.668 | r = 0.127, p = 0.513 |
| n = 34 | n = 37 | n = 29 | |||
| Duke Activity Status Index (mL.kg–1.min–1) | 29.5 ± 5.2 | 32.2 ± 4.1 | 2.3 ± 4.2∗ | F = 2.562, p = 0.117 | r = 0.085, p = 0.587 |
| n = 48 | n = 45 | n = 43 |
CPET, cardiopulmonary exercise test; SD, standard deviation. ∗, denotes significant change from baseline to follow-up.