Table 4.
Values of plasma hormone activity in the four trials during prolonged exercise
| Trial | Rest | Before drinking | After drinking |
|---|---|---|---|
| [Ad]p (pg ml−1) | |||
| C | 35 ± 4 | 141 ± 21 | 169 ± 29§ |
| LPVHOS | 43 ± 7 | 137 ± 16 | 165 ± 34§ |
| LPVIOS | 37 ± 5 | 134 ± 15 | 159 ± 29§ |
| NPVHOS | 45 ± 7 | 113 ± 12*† | 119 ± 20*† |
| [NA]p (pg ml−1) | |||
| C | 208 ± 19 | 906 ± 120 | 1164 ± 178§ |
| LPVHOS | 234 ± 26 | 1183 ± 118* | 1564 ± 184*§ |
| LPVIOS | 210 ± 24 | 972 ± 110† | 1282 ± 158†§ |
| NPVHOS | 180 ± 19 | 820 ± 93† | 1117 ± 141†§ |
| [AVP]p (pg ml−1) | |||
| C | 1.3 ± 0.1 | 1.9 ± 0.2 | 2.0 ± 0.2 |
| LPVHOS | 3.6 ± 0.7* | 4.4 ± 0.8* | 6.0 ± 1.5* |
| LPVIOS | 1.5 ± 0.2† | 2.1 ± 0.2† | 2.5 ± 0.3† |
| NPVHOS | 5.2 ± 0.9*‡ | 5.3 ± 0.8*‡ | 5.5 ± 0.8*‡ |
Plasma adrenaline ([Ad]p), noradrenaline ([NA]p), and arginine vasopressin concentrations ([AVP]p) are shown as means ±s.e.m. for 7 subjects. The other abbreviations are the same as in Table 1. *, †, ‡, Significant difference from C, LPVHOS, and LPVIOS, respectively; §significant difference from Before drinking at the level of P < 0.05.