Table 3.

Simulated effect of training when OXPHOS activity is increased and peak P_i is decreased (set B of simulations)

Parameter	Untrained	Trained
OXPHOS activity, kOX	0.8	1.1 (↑37.5%)
(in relation to standard)
Peak Pi (Pipeak), mM	25	22 (↓12%)
Variable
V̇O2max, mM·min−1	10.50	11.83 (↑12.7%)
AUTcrit, unitless	59	72 (↑22%)
t0.63, s	29.2	22.8 (↓21.9%)

The changes in the parameter values cause changes in variable values. A_UTcrit, critical ATP usage activity (corresponding to critical power); V̇O_2max, maximal V̇O₂; t_0.63, characteristic transition time of the V̇O₂ on-kinetics (analogous to τ_p).