what causes muscle burn
Confidence votes 35. Lactic acid accumulation has been assumed to be the cause of muscle burn for many years. In the past few years, it has been discovered that lactic acid is not a by-product but is actually a source of fuel for muscles.hen a muscle gets into that mode it produces lactic a â¦ cid and the acid burns and causes the sore muscles that last for several days. Also, The burning feeling is a feedback mechanism that warns the body of possible injury if the current activity level is not reduced. It is the bodies way of saying slow down.