Variable | Controls | Ischaemic | Idiopathic |
---|---|---|---|
Exercise time (s) | 952 (106) | 503 (89)4-165 | 722 (117)4-165 †† † |
mV˙o 2 (ml/kg/min) | 31.5 (4.6) | 18.6 (3.9)4-165 | 25.0 (4.9)** †† |
V˙e/V˙co2 | 25.5 (3.8) | 35.8 (5.3)4-165 | 31.1 (4.7)* † |
Anaerobic threshold (ml/kg/min) | 14.0 (4.1) | 11.3 (3.3) | 13.1 (3.4) |
RQ | 1.27 (0.13) | 1.18 (0.11) | 1.19 (0.09) |
Resting heart rate (beats/min) | 66 (9) | 83 (20)** | 88 (10)** |
Peak heart rate (beats/min) | 168 (20) | 144 (25)** | 167 (12)† |
Change in heart rate (beats/min) | 102 (15) | 61 (12)4-165 | 79 (14)4-165 †† |
Values are mean (SD). mV˙o2, peak oxygen consumption; RQ, ratio of carbon dioxide production to oxygen consumption at peak exercise;V˙e/V˙co 2, regression slope of ventilation rate against carbon dioxide production during exercise.
↵4-165 p<0.001, **p<0.01, *p<0.05 v controls;†† †p<0.001, ††p<0.01, †p<0.05 v ischaemic group.