Table 4.
Metabolic variables measured throughout the postexercise recovery period
| Children | Adults | P | |
|---|---|---|---|
| λ, mM/pH unit | 14.5 ± 6.8 | 6.8 ± 3.2 | <0.01 |
| Veff max, mM/min | 6.2 ± 2.5 | 3.8 ± 1.9 | <0.05 |
| βtot, slykes | 30.7 ± 5.7 | 34.1 ± 5.8 | NS |
| kPCr, min−1 | 1.3 ± 0.5 | 0.7 ± 0.4 | <0.05 |
| ViPCr, mM/min | 18.1 ± 8.1 | 11.7 ± 4.1 | <0.05 |
| Vmax, mM/min | 37.5 ± 14.5 | 21.1 ± 12.2 | <0.05 |
Values are means ± SD. λ, Apparent efflux rate, i.e., the rate of pHi change scaled to the pHi difference recorded at end of exercise; Veff max, maximum rate of proton efflux; βtot, total buffering capacity; kPCr, rate constant of PCr recovery; ViPCr, initial rate of PCr resynthesis; Vmax, theoretical maximum rate of oxidative phosphorylation.