Table 2.
Serum electrolyte concentrations, body temperature, and heart rate during exercise. Values are mean (SD) for 7 subjects.
| NF | VF | PF | FF | |
|---|---|---|---|---|
| Serum sodium (mmol·L-1) | ||||
| Pre | 138 (2) | 139 (2) | 139 (3) | 138 (1) |
| Post | 142 (2) § | 139 (2) | 139 (2) | 138 (1) † |
| Serum potassium (mmol·L-1) | ||||
| Pre | 3.5 (0.2) | 3.6 (0.3) | 3.6 (0.2) | 3.6 (0.2) |
| Post | 4.1 (0.3) § | 4.2 (0.3) § | 4.0 (0.2) | 4.0 (0.3) |
| Serum chloride (mmol·L-1) | ||||
| Pre | 104 (1) | 104 (2) | 104 (1) | 104 (2) |
| Post | 106 (2) | 103 (2) | 103 (1) | 102 (2) † |
| Tre (°C) | ||||
| Rest | 37.0 (0.2) | 37.0 (0.2) | 37.0 (0.2) | 36.9 (0.2) |
| End of exercise | 38.8 (0.3) | 38.3 (0.3) † | 38.2 (0.2) † | 37.9 (0.2) † |
| Tsk (°C) | ||||
| Rest | 33.7 (0.5) | 33.6 (0.7) | 33.5 (0.6) | 33.5 (0.6) |
| End of exercise | 34.9 (1.0) | 34.9 (0.9) | 34.4 (0.8) | 34.4 (0.9) |
| HR (beats·min-1) | ||||
| Rest | 83 (5) | 84 (5) | 88 (5) | 90 (6) |
| End of exercise | 181 (9) | 167 (8) * | 164 (10) † | 154 (11) †‡ |
Tre, rectal temperature; Tsk, mean skin temperature; HR, heart rate.
* p < 0.05 and
† p < 0.01 denotes a significant difference from the NF trial.
‡ p < 0.05 denotes a significant difference from the VF trial.
§ p < 0.01 denotes a significant difference from pre-exercise.