Lactic Acid In The Knees
A man is experiencing knee pain. Image Credit: Halfpoint/iStock/Getty Images Your body produces lactic acid, or lactate, in the absence of enough oxygen to convert glucose to energy. As your level of intensity increases, so do your levels of lactic acid. The muscle fatigue and pain that accompany lactic acid have given it a bad rap among athletes in general, and runners in particular, who experience pain in their knee joints following intense exercise....