Ventilation and gas exchanges during exercise
| Rest | 50 W | Peak exercise | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Atenolol | Metoprolol CR | Atenolol | Metoprolol CR | Atenolol | Metoprolol CR | ||||||
| V˙i (l/min) | 10.4 (0.5) | 9.9 (0.4) | 24.7 (0.9) | 25.4 (1.2) | 41.3 (1.8) | 43.2 (1.7) | |||||
| V˙o 2(ml/min) | 260 (10) | 257 (11) | 933 (26) | 942 (24) | 1414 (60) | 1436 (56) | |||||
| V˙co 2(ml/min) | 230 (10) | 221 (10) | 797 (26) | 817 (26) | 1356 (73) | 1433 (60) | |||||
V˙i, ventilation; V˙o 2, oxygen uptake; V˙co 2, carbon dioxide production.