Lactate Physiology and Sports Training

Part 5 - Lactate Production, Clearance and Endurance Training

Endurance training affects lactate metabolism in two fundamental ways.

When an athlete stresses the aerobic system, the body adapts in several ways. Oxygen can move more quickly to each muscle. Oxygen is necessary to produce the maximum amount of energy from pyruvate. Besides the availability of oxygen, there are other important factors which encourage the muscle to use pyruvate for fuel and speed up the use of lactate in adjacent muscles and the blood stream. Four which are enhanced by endurance training are:

Endurance training is one of the keys to these adaptations that help shuttle the lactate about the body. The faster this shuttling process happens, the better the athlete will perform. So if you hear the expression, "building an endurance base", the changes described above are some of the implications of that expression. Even if the race or game involves an all out effort that requires the use of fast twitch fibers, endurance training has an important place. These fast twitch fibers produce lots of lactate and unless this lactate is cleared out of the fibers and shuttled to other areas of the body the fibers will eventually stop contracting. The longer these fibers can contract the faster the athlete will complete his or her event. So even success in the so called "anaerobic"8 events is affected by the body's ability to clear lactate, which is built through endurance training.

Alto da Página | Página principal | Página principal en Español | English Home Page

A Fisiologia do Lactato e o Treinamento Esportivo

A Análise do Lactato