Table 1.
Oxygen uptake, RER, heart rate, MAP and perceived exertion during 60 min of cycling exercise in normal (CON) and adrenalectomised subjects with saline (−ADR) or adrenaline (+ADR) infusion commencing at the onset of exercise
| 0–45 min | 45–60 min | |
|---|---|---|
| Oxygen uptake (l min−1) | ||
| −ADR | 0.97 ± 0.13 | 1.28 ± 0.20 |
| +ADR | 1.02 ± 0.12 | 1.17 ± 0.13 |
| CON | 1.68 ± 0.23 | 2.15 ± 0.27 |
| RER | ||
| −ADR | 0.82 ± 0.02 | 0.86 ± 0.02 |
| +ADR | 0.87 ± 0.02 | 0.87 ± 0.02 |
| CON | 0.86 ± 0.01 | 0.94 ± 0.02 |
| Heart rate (bpm) | ||
| −ADR | 113 ± 12 | 141 ± 13 |
| +ADR | 124 ± 14 | 144 ± 11 |
| CON | 136 ± 13* | 166 ± 6* |
| MAP (mmHg) | ||
| −ADR | 108 ± 6 | 107 ± 7 |
| +ADR | 107 ± 6 | 104 ± 5 |
| CON | 112 ± 4 | 109 ± 4 |
| Perceived exertion | ||
| −ADR | 12 ± 1 | 18 ± 1 |
| +ADR | 13 ± 1 | 17 ± 1 |
| CON | 12 ± 1 | 16 ± 1 |
Values are means ± s.e.m. (n = 6). RER, respiratory exchange ratio; MAP, mean arterial pressure.
*
Significantly different (P < 0.05) from –ADR.