Table 4.
Change in hypothalamopituitary response
| Prestart | 10.5 km | Δ to prestart (%) | 21.1 km | Δ to prestart (%) | 31.6 km | Δ to prestart (%) | 42.195 km | Total Δ (%) | |
|---|---|---|---|---|---|---|---|---|---|
| Prolactin (ng/mL) | 4.1 | 2.5 | −39.0 | 4.6 | +12.2 | 5.30 | +29.2 | 13.2 | +221.9 |
| Somatotropic hormone (μg/L) | 0.12 | 5.1 | +4,150.0 | 0.15 | +25.0 | <0,10 | ** | 0.59 | +391.6 |
| IGF-1 (μg/L) | 220 | 232 | +5.4 | 223 | +1.3 | 229 | +4.0 | 229 | +4.0 |
| ACTH (ng/L) | 28.0 | 13.5 | −51.7 | 3.64 | −87.0 | <1.6 | ** | <1.6 | ** |
| Aldosterone (ng/L) | 78.1 | 61.2 | −21.6 | 69.1 | −11.5 | 152 | +94.6 | 323 | +313.5 |
| Cortisol (nmol/L) | 468 | 194 | −58.5 | 132 | −71.7 | 115 | −75.4 | 258 | −44.8 |
| TSH, basal (mU/L) | 2.19 | 2.25 | +2.7 | 2.19 | 0.0 | 2.63 | +20.0 | 3.62 | +65.3 |
| fT3 (pmol/L) | 5.0 | 5.1 | +2.0 | 4.90 | −2.0 | 5.0 | 0.0 | 5.2 | +4.0 |
| fT4 (pmol/L) | 16.6 | 17.0 | +2.4 | 16.8 | +1.2 | 16.0 | −3.6 | 17.1 | +3.0 |
| Copeptin (pmol/L) | <4.8 | 8.3 | ** | <4.8 | ** | <4.8 | ** | 18.2 | ** |
| Renin direct (μg/L) | 7.90 | 7.30 | −7.5 | 12.5 | +58.2 | 22.7 | +187.3 | 98.4 | +1145.5 |
Note:
**
Calculation not possible.
Abbreviations: ACTH, adrenocorticotropic hormone; IGF-1, insulin-like growth factor 1; TSH, thyroid-stimulating hormone; fT3, free triiodothyronine; fT4, free thyroxine.