Lactic acid has long been villainized, but new research shows it doesn't impair muscle function. In fact, it might actually be good for you.

Lactic acid build-up causes a burning sensation in your muscles during intense exercise. Lactic acid is not responsible for sore muscles the day after exercise, contrary to popular belief.

So when there's too much lactic acid, that would secrete into the muscles, and the muscles would start to fatigue, they'd start to slow down. And then after a while, they would start to cramp.

To get rid of lactic acid, do gentle and light stretching to help improve blood circulation, and reduce stiffness and pain.

As the time of pedaling increases, oxidation products (lactic acid) build up in the muscles and fatigue starts to decrease the sustainable power. At long times the steady state energy conversion ...