Is it important to drain your leg muscles of excess lactate after running in order to avoid cramps? Is that what stretching does? Can you get the lactate into you blood just by shaking them?
.I don't exactly remember how, but lactic acid can be run through the citric acid cycle once the muscles in your legs have enough oxygen to do so. (The reason that your cells produce lactic acid in the first place is because your cells need more oxygen than they're getting, so in order to make quick atp, they skip the whole aerobic respiration part and get atp through lactic acid fermentation)