MUSCLE PHYSIOLOGY

Detailed explanation-1: -Lactic acid buildup occurs when there’s not enough oxygen in the muscles to break down glucose and glycogen by the aerobic pathway. So they are broken down by anaerobic metabolism and lactic acid is produced as the end product. When doing exercise, it’s important to avoid overexerting yourself.

Detailed explanation-2: -When the body has plenty of oxygen, pyruvate is shuttled to an aerobic pathway to be further broken down for more energy. But when oxygen is limited, the body temporarily converts pyruvate into a substance called lactate, which allows glucose breakdown-and thus energy production-to continue.

Detailed explanation-3: -Under anaerobic conditions, glucose (and more specifically, pyruvate) is converted into lactic acid in order to produce energy for the cells. Energy can also be produced in the kidneys, where lactate can be oxidized to produce energy with the generation of CO2, a process that consumes oxygen but generates ATP.

Detailed explanation-4: -Lactic acid is fuel for your cells during intense exercise. It’s created when your body breaks down glucose and other carbohydrates. It’s a common myth that muscle soreness you feel after exercise is caused by lactic acid trapped in your cells.

Detailed explanation-5: -Lactic acid is a substance made by muscle tissue and by red blood cells, which carry oxygen from your lungs to other parts of your body. Normally, the level of lactic acid in the blood is low. Lactic acid levels rise when oxygen levels decrease.