Table 2 Summary of responses to exercise and treatments.
Room Air | Electric Fan | Air Mask | Oxygen Mask | |
|---|---|---|---|---|
Mean exercise time (seconds) | 93.7 (42.1) | 92.9 (43.2) | 94.1 (40.5) | 93.0 (46.1) |
Mean number of steps climbed | 34.1 (17.0) | 36.0 (17.1) | 36.6 (21.9) | 33.4 (16.8) |
Mean pulse pre-exercise | 86.0 (12.1) | 87.3 (13.1) | 84.7 (12.0) | 86.2 (12.6) |
Mean pulse at end of exercise | 99.3 (18.6) | 103.6 (16.6) | 107.0 (19.7) | 102.1 (16.2) |
Mean SpO 2 pre-exercise | 95.2 (1.4) | 94.8 (1.3) | 95.1 (1.3) | 94.9 (1.3) |
Mean SpO 2 at end of exercise | 91.3 (4.0) | 91.1 (3.7) | 91.3 (4.3) | 91.5 (3.5) |
Mean Borg score pre-exercise | 1.5 (1.1) | 1.5 (1.2) | 1.5 (1.1) | 1.6 (1.2) |
Mean Borg score at end of exercise | 5.1 (1.7) | 5.1 (1.7) | 5.3 (1.6) | 5.1 (1.7) |
Mean subjective recovery time ( mins) | 3.2 (1.1) | 3.6 (1.8) | 3.3 (1.1) | 3.1 (1.2) |
Mean objective recovery time (mins) | 2.8 (2.0) | 2.3 (1.1) | 2.9 (2.5) | 1.9 (1.0) |
Recovery time for sub-group of 14 patients who desaturated | ||||
Mean subjective recovery time (mins) | 3.2 (1.1) | 3.4 (1.1) | 3.5 (0.9) | 2.9 (1.2) |
Mean objective recovery time (mins) | 3.0 (1.8) | 2.1 (0.9) | 3.6 (3.6) | 1.9 (1.0) |