Table 5.
Plasma lactate, glucose, glycerol and free fatty acid (FFA) concentration at rest and during exercise in control and respiratory alkalosis
Exercise | ||||||
---|---|---|---|---|---|---|
Metabolite | Condition | Pre-equilibration | Rest | 5 min | 10 min | 14 min |
Lactate | Con | ND | 1.2 ± 0.1 | 2.8 ± 0.3* | 3.6 ± 0.3* | 3.7 ± 0.4* |
R-Alk | 1.2 ± 0.1* | 2.4 ± 0.4† | 4.4 ± 0.6*† | 5.1 ± 0.6*† | 5.3 ± 0.5*† | |
Glucose | Con | ND | 4.1 ± 0.2 | 3.8 ± 0.2 | 3.8 ± 0.1 | 3.9 ± 0.1 |
R-Alk | 4.1 ± 0.2 | 4.3 ± 0.2 | 4.2 ± 0.3 | 4.2 ± 0.3 | 4.2 ± 0.3 | |
Glycerol | Con | ND | 38.0 ± 4.9 | 36.4 ± 2.3 | 42.6 ± 7.1 | 30.8 ± 4.9 |
R-Alk | 27.8 ± 1.3 | 33.9 ± 6.0 | 47.1 ± 4.0 | 56.3 ± 4.7 | 49.7 ± 6.5 | |
FFA | Con | ND | 0.36 ± 0.07 | 0.38 ± 0.07 | 0.38 ± 0.07 | 0.40 ± 0.07 |
R-Alk | 0.38 ± 0.07 | 0.50 ± 0.05 | 0.47 ± 0.06 | 0.47 ± 0.08 | 0.55 ± 0.09 |
Values are means ±s.e.m.; glycerol is expressed in μm; all other measurements are expressed in mm. FFA, free fatty acid; ND, not determined.
Significant from rest
significant from control.