TABLE 2.
Cardiopulmonary Exercise Test Responses
| All Patients | Men | Women | |
|---|---|---|---|
| Absolute peak VO2, l/min−1 | 1.34 (1.00–2,40) | 1.45 (0.37–2.52) | 1.11 (6.05–1.81) |
| Relative peak VO2, mL·kg−1·min−1 | 14.6 (8.3–23.7) | 15.2 (8.7–24.3) | 13.4 (7.7–21.0) |
| Percent predicted peak VO2, % | 60 (34–90) | 57 (32–86) | 68 (39–95) |
| VE – VCO2 slope | 32.4 (23.4–52.1) | 32.6 (23.5–53.5) | 31.8 (23.4–48.9) |
| VO2 at VAT, mL·kg−1·min−1 | 10.7 (6.9–15.7) | 10.8 (7.1–15.9) | 10.0 (6.5–14.7) |
| Oxygen uptake efficiency slope | 1655 (846–2800) | 1788 (876–2886) | 1401 (750–2276) |
| Peak oxygen pulse, ml/beat−1 | 11.3 (6.0–18.6) | 12.5 (6.8–19.4) | 9.0 (5.1–13.7) |
| Peak respiratory exchange ratio | 1.08 (0.91–1.27) | 1.09 (0.92–1.28) | 1.06 (0.88–1.24) |
| Exercise duration, min | 9.8 (4.0–17.0) | 10.0 (4.2–17.7) | 9.0 (3.5–15.2) |
| Peak heart rate, beats/min−1 | 120 (86–160) | 118 (85–157) | 125 (89–162) |
| Borg rate of perceived exertion | 17 (13–20) | 17 (13–20) | 17 (13–20) |
| Heart rate reserve (peak-rest), beats/min−1 | 49 (17–86) | 47 (16–85) | 54 (20–90) |
Values are median (5th–95th percentiles).
VAT = ventilatory-derived anaerobic threshold; VE = minute ventilation; VCO2 = carbon dioxide production; VO2 = oxygen uptake.