Table 3.
Aldosterone, angiotensin-converting enzyme, aldosterone synthase, cortisol, potassium and serum osmolality (mean ± SD) pre- and post-exercise in the normobaric hypoxia and sea level groups.
| T1 | T2 | T3 | T4 | ||
|---|---|---|---|---|---|
| Aldosterone (pmol/L) | NH | 224 ± 176 | 127 ± 67 | 335 ± 238*,** | 174 ± 105* |
| SL | 271 ± 149 | 241 ± 204 | 700 ± 325** | 382 ± 196 | |
| ACE (U/L) | NH | 42 ± 23 | 42 ± 20 | 44 ± 22 | 43 ± 24 |
| SL | 47 ± 26 | 49 ± 24 | 53 ± 27 | 47 ± 27 | |
| Aldosterone synthase (ng/mL) | NH | 2.88 ± 0.59 | 3.04 ± 0.52 | 3.05 ± 0.63 | 2.99 ± 0.60 |
| SL | 2.39 ± 0.41 | 2.52 ± 0.43 | 2.63 ± 0.37 | 2.58 ± 0.41 | |
| Cortisol (nmol/L) | NH | 467 ± 117 | 477 ± 166 | 734 ± 165*,** | 632 ± 207* |
| SL | 562 ± 98 | 397 ± 80 | 344 ± 159 | 363 ± 117 | |
| K (mmol/L) | NH | 4.1 ± 0.2 | 4.3 ± 0.3 | 4.0 ± 0.4 | 3.5 ± 1.7 |
| SL | 4.1 ± 0.1 | 4.6 ± 0.4 | 4.5 ± 0.7 | 5.0 ± 0.5 | |
| Serum osmolality (mOsm/kg) | NH | 288 ± 4.6 | 289 ± 3.5 | 290 ± 3.5 | 289 ± 3.7 |
| SL | 288 ± 3.8 | 289 ± 4.0 | 290 ± 3.5 | 289 ± 3.7 |
*
= NH significantly different to SL, ** = significantly higher at T3 (post-exercise) compared with T2.
ACE: angiotensin-conerting enzyme; NH: normobaric hypoxia; SL: sea level; T: time point.