Physical fitness | Week 0, n | Week 9, n | Difference in endpoint week 9 (95% CI), P value |
---|---|---|---|
Primary outcome: VO2 at AT (ml kg−1 min −1) |  |  | |
 Exercise | 11.6 (3.4), 15 | 15.0 (4.2), 13 | 2.9 (0.8, 5.1), 0.011 |
 Usual care control | 10.8 (2.5), 13 | 11.5 (2.5), 12 |  |