Table 5.
Exercise performance
| Variable | N | A | O | OA | P Value |
|---|---|---|---|---|---|
| n | 22 | 15 | 13 | 20 | |
| Distance, ft | 1595±55 | 1451±65 | 1233±68 | 1409±63 | 0.002 |
| Borg score | 0.8±0.2 | 1.5±0.4 | 1.9±0.4 | 2.0±0.4 | <0.001 |
| SpO2, % | 97.1±0.3 | 97.4±0.4 | 96.5±0.7 | 96.8±0.4 | 0.55 |
Data are means ± SE for n subjects in each group. Distance is the length walked by subjects, and the Borg score indicates the intensity of dyspnea during exertion. SpO2, average percent arterial oxygen saturation measured by pulse oximetry during the last minute of exercise. P values are derived from between-group comparisons.