Mean (SE) responses to treadmill tests to determine V˙o 2peak and endurance capacity
| Test | V˙o2peak (ml/min/kg) | V˙e (l/min) | HR (beats/min) | Vt (ml) | fR (breaths/min) | RER | BS | PE |
|---|---|---|---|---|---|---|---|---|
| Endurance | ||||||||
| 75% | 12.1 (0.5) | 33.4 (3.1) | 112 (7) | 1287 (104) | 26.6 (2.1) | 0.87 (0.01) | 4.1 (0.7) | 13.2 (0.9) |
| 85% | 13.4 (0.9) | 37.2 (4.2) | 114 (6) | 1394 (126) | 26.8 (1.7) | 0.90 (0.02) | 4.5 (0.5) | 14.0 (0.8) |
| 95% | 15.1 (1.0)4-150 | 40.5 (3.4)4-150 | 122 (7)4-151 | 1444 (103)4-150 | 28.5 (2.1) | 0.92 (0.02) | 5.8 (0.7)4-150 | 15.3 (0.7)4-150 |
| Incremental | 15.5 (1.2) | 42.1 (4.0) | 120 (6) | 1614 (158) | 28.2 (1.8) | 0.91 (0.02) | 5.5 (0.5) | 15.4 (0.6) |
V˙o 2peak = oxygen consumption;V˙e = ventilation; HR = heart rate; Vt = tidal volume; fR = respiratory rate; RER = respiratory exchange ratio; BS = breathlessness; PE = perceived exertion.
Measurements were from the final minute of each endurance test and the symptom limited incremental treadmill test.
↵4-150 Significantly different from 75%.
↵4-151 Significantly different from 75% and 85% (p<0.05).
Incremental V˙o 2peak = 1.09 (0.08) l/min.