Table 3.
Mean (±SD) values recorded at baseline and when test participants became aware of thirst during daily activities and returned to the laboratory.
| Measurements | Baseline (Day 1, 0700 h) |
Thirst Awareness a (Day 1) |
|---|---|---|
| Body mass (kg) | 80.11 ± 10.58 | 79.47 ± 10.55 |
| Plasma osmolality (mOsm/kg) b | 297 ± 4 | 298 ± 4 |
| Urine specific gravity b | 1.020 ± 0.007 | 1.024 ± 0.004 c |
| Thirst d | 55 ± 14 | 79 ± 12 c |
| Desire for water d | 55 ± 18 | 79 ± 14 c |
| Mouth dryness d | 58 ± 15 | 71 ± 22 c |
| Stomach emptiness d | 57 ± 15 | 48 ± 28 |
a, this visit to the HPL occurred at a different time for each subject and represented a mean body mass loss of 0.64 kg (0.8%); b, single sample; c, significantly different from Baseline (range, p = 0.043 to p = 1.8 × 10−5); d, Visual Analog Scale rating (0–100 range).