Where Does Lactic Acid Come From During Vigorous Exercise?

Basically Lactic acid accumulates in our body muscles. It comes when the glucose and sugar of our body cells are converted into energy. Our body cells have extra accumulation of glucose and nutrients. During a vigorous exercise, it comes from muscles.  When any vigorous activity is carried out then Lactic acid is produced. It is produced every time when exhausting activity is experienced. Researchers suggest that its level is directly related with the level of aerobic activity. Even its levels are not same in all of the people who carry out same exercise. There are various psychological factors which also controls the level of Lactic acid.

When we perform exercise and exert our muscles, the breathing becomes faster and the working muscles require more oxygen and energy. The energy that the body produces is usually through oxygen but in some cases the energy production needs to be far more and quicker than the way the body gets the oxygen. In such cases, the body produces energy without oxygen through a process called glucolysis. In this process glucose gets broken down into pyruvate and when the body is short on oxygen due to exertion, pyruvate gets converted into lactate which allows the glucose to break down and produce energy. This production of the lactic acid is only temporary.

During Exercise Lactic acid plays a significant role in causing fatigue and makes the muscles sore. However, it quickens the metabolism of the body and acts as a useful energy source.