Cardiopulmonary and haemodynamic variables, before and after the study period
| Rehabilitation group | Controls | |||
|---|---|---|---|---|
| Baseline | 6 weeks | Baseline | 6 weeks | |
| Results are expressed as mean (SD). | ||||
| *p<0.05, †p<0.005, at 6 weeks versus baseline. | ||||
| CO, cardiac output; CPO, cardiac power output; RER, respiratory exchange ratio; V̇co2, rate of carbon dioxide production; V̇E, rate of ventilation; V̇o2, rate of oxygen uptake. | ||||
| Exercise time (minutes) | 11.2 (3.6) | 13.2 (3.1)† | 10.8 (4.9) | 12.3 (4.7)† |
| Peak V̇o2 (ml/kg/min) | 20.5 (4.6) | 22.3 (3.4)† | 20.4 (6.4) | 22.7 (6.9)† |
| Anaerobic threshold (ml/min) | 1240 (244) | 1297 (236) | 1172 (328) | 1263 (388) |
| RER | 1.09 (0.08) | 1.15 (0.1) | 1.09 (0.13) | 1.08 (0.12) |
| Rest heart rate (beats/min) | 86 (15) | 87 (12) | 90 (17) | 84 (12) |
| Peak heart rate (beats/min) | 141 (19) | 147 (18) | 145 (23) | 144 (23) |
| Rest mean blood pressure (mm Hg) | 103 (14) | 104 (14) | 98 (12) | 99 (8) |
| Peak mean blood pressure (mm Hg) | 119 (14) | 122 (12) | 118 (8) | 115 (10) |
| V̇E/V̇o2 at 1litre V̇o2 (l/min) | 28 (5) | 26 (4)* | 27 (3) | 26 (4) |
| V̇E/V̇co2 at 1 litre V̇co2 (l/min) | 33 (5) | 31 (4)* | 32 (2) | 31 (3) |
| Rest CO (l/min) | 4.59 (1.09) | 4.83 (1.29) | 4.19 (0.91) | 4.19 (0.8) |
| Peak CO (l/min) | 11.3 (2.2) | 12.2 (1.7)* | 11.9 (3.1) | 12.2 (2.8) |
| Rest CPO (W) | 1.05 (0.31) | 1.12 (0.37) | 0.92 (0.22) | 0.95 (0.23) |
| Peak CPO (W) | 2.97 (0.84) | 3.31 (0.7)* | 3.04 (0.83) | 3.1 (0.84) |
| Cardiac reserve (W) | 1.92 (0.72) | 2.19 (0.53)* | 2.12 (0.78) | 2.16 (0.71) |