Oxygen saturation measured by pulse oximetry (SpO2) during treadmill and cycle exercise training
| Oxygen group | Air group | Between-group difference (Oxygen group−Air group)# | |
| Treadmill SpO2 % | 94±3 | 89±4 | 5 (4–6) |
| Cycle SpO2 % | 94±3 | 92±3 | 3 (1–4) |
Data are presented as mean±sd weekly measures of SpO2 in all participants in the last 5 min of the 20-min treadmill and cycle exercise training, unless otherwise stated. #: mean (95% CI).