Figure 3. Mean (± s.d.) values of muscle [lactate] and net lactate efflux from muscle in the two experimental conditions.

In IA muscle [lactate] tended to be higher at rest, but it did not increase during contractions, whereas it significantly increased during contractions in Ctrl. Net lactate efflux was higher in IA vs. Ctrl at rest and early in the contraction period, whereas the opposite was true at the end of the contraction period. See text for further details. *P < 0.05.