Parameter | Shuttle test | Treadmill test | p value |
---|---|---|---|
Baseline characteristics | |||
Age (years) | 25 (7) | — | — |
Weight (kg) | 58 (8) | — | — |
Height (m) | 1.67 (0.008) | — | — |
FEV1 (% pred) | 49 (23) | 48 (25) | 0.31 |
Sao 2 | 94 (3) | 94 (3) | 0.39 |
Resting heart rate (beats/min) | 95 (12) | 97 (17) | 0.56 |
Resting heart rate (% pred max) | 49 (7) | 50 (8) | 0.46 |
Resting rating perceived breathlessness | 0 (1) | 0 (1) | 0.89 |
Physiological responses | |||
V˙o 2peak (ml/kg/min) | 32.85 (10.36) | — | — |
V˙o 2peak (% pred) | 73.45 (26.27) | — | — |
Vemax (l/min) | 57.76 (20.01) | — | — |
Ve (% pred) | 101 (40) | — | — |
MST distance (m) | — | 929 (335) | — |
Max heart rate (beats/min) | 171 (23) | 169 (24) | 0.90 |
Max heart rate (% pred) | 87 (10) | 86 (11) | 0.95 |
Peak rate perceived breathlessness | 6 (1) | 6 (1) | 0.90 |
End Sao 2 | 89 (7) | 88 (7) | 0.10 |
FEV1 = forced expiratory volume in one second; Sao 2 = oxygen saturation;V˙o 2peak = peak oxygen consumption; Ve = minute ventilation; MST = modified shuttle test.