Table 2.
Body mass loss, heart rate, rate of perceived exertion (Borg scale), concentration of blood glucose, blood lactate, plasma free fatty acids (FFA), plasma glycerol and serum sodium, potassium and chloride during the study in carbohydrate-electrolyte (CHOE) and water trial. Values are mean (SD). *Statistically significant at P < 0.05 for CHOE vs. water trial
| Time | ||||||
|---|---|---|---|---|---|---|
| Trial | Rest (0 min) |
End of I half (45 min) |
End of II half (90 min) |
1st min of recovery (91 min) |
End of recovery (150 min) |
|
| Body mass loss | CHOE | - | 0.3 (0.3)* | 0.9 (0.3)* | - | 0.2 (0.1)* |
| (kg) | Water | - | 0.5 (0.3) | 1.4 (0.5) | - | 0.4 (0.2) |
| Heart rate (beats·min-1) | CHOE | 62.8 (5.0) | 154.6 (18.5) | 164.7 (12.8) | 105.2 (8.0)* | 65.7 (4.5) |
| (beats·min-1) | Water | 63.3 (5.6) | 162.9 (11.8) | 170.2 (14.4) | 113.1 | 64.9 (5.3) |
| (10.0) | ||||||
| Rate of perceived | CHOE | 6.5 (0.7) | 12.9 (1.2) | 14.4 (1.1)* | - | 7.1 (0.7)* |
| exertion | Water | 6.2 (0.4) | 13.6 (1.6) | 17.1 (1.4) | - | 7.5 (0.6) |
| Blood glucose | CHOE | 4.2 (0.4) | 4.8 (0.2)* | 4.4 (0.3)* | - | 4.3 (0.3) |
| (mmol·l-1) | Water | 4.3 (0.4) | 4.6 (0.4) | 4.0 (0.3) | - | 4.2 (0.2) |
| Blood lactate | CHOE | 1.0 (0.3) | 3.1 (0.2) | 2.3 (0.4) | - | 1.3 (0.4) |
| (mmol·l-1) | Water | 1.0 (0.3) | 2.8 (0.2) | 2.5 (0.2) | - | 1.3 (0.5) |
| Plasma FFA | CHOE | 0.5 (0.1) | 0.4 (0.1) | 0.9 (0.2) | - | - |
| (mmol·l-1) | Water | 0.5 (0.1) | 0.5 (0.1) | 0.9 (0.1) | - | - |
| Plasma glycerol | CHOE | 64.7 (6.4) | 267.3 (19.1)* | 406.0 (44.5) | - | - |
| (µmol·l-1) | Water | 64.0 (9.1) | 301.3 (24.4) | 422.7 (27.9) | - | - |
| Serum sodium | CHOE | 135.8 (1.6) | - | 140.4 (2.4) | - | - |
| (mmol·l-1) | Water | 136.3 (1.5) | - | 141.4 (2.5) | - | - |
| Serum potassium | CHOE | 4.5 (0.3) | - | 4.9 (0.3) | - | - |
| (mmol·l-1) | Water | 4.5 (0.1) | - | 5.0 (0.2) | - | - |
| Serum chloride | CHOE | 98.2 (1.0) | - | 101.9 (2.1) | - | - |
| (mmol·l-1) | Water | 97.7 (1.4) | - | 100.9 (1.6) | - | - |