Lactic acid is the acidic form of lactate that is produced by the muscles during intense or prolonged exercise. While performing everyday life activities, your body prefers to generate most of its energy using oxygen.
However, during strenuous exercise sessions, when the rate of demand for energy is high, the working muscles generate energy anaerobically. This energy is generated through glycolysis, in which glucose is metabolized into a substance known as pyruvate. Your body temporarily converts this substance into lactate, which allows glucose breakdown and thus energy production.
Lactate concentration begins to rise during strenuous exercises, which leads to an increased acidity of the muscle cells. This overall rise is due to lactate being produced faster than the ability of tissues to remove it. The formation of lactic acid and other metabolites results in a burning sensation in active muscles and a subsequent feeling of soreness. It is also believed that an escalation of lactic acid in the body may lead to impairment of muscle contractions.
Protein also provides the necessary fuel for muscles to develop and reduces the production of lactic acid. Furthermore, protein helps your muscles recover fast. Whey protein powder is helpful in building lean muscle mass, so it is usually used as a supplement immediately before or after a workout routine. Whey powder is digested more quickly and can give muscles the necessary proteins for almost immediate replenishment.