Pedal hard and you start to get tired. Of accumulated lactic acid in blood and legs that do not begin to listen, right?
Wrong, is more complicated than a simple accumulation of lactic acid.

One of the most interesting challenges for coaches and scientists who study the athletes is to explain what they know so that virtually anyone to understand.
The common goal is to provide athletes with useful information so that they can maximize their workouts. Unfortunately trying to simplify some concepts lead to misunderstandings.
The "lactic acid" has long suffered due to lack of information they have athletes.

The notion that lactic acid causes muscle fatigue in that effort is made simple explanation for a process that is actually more complex. Since the amount of lactic acid increases exercise intensity increases, and once the intensity of exercise increases fatigue accumulates, many believe that lactic acid is responsible for this fatigue.
If we do not currently understand how the heart we could very easily reach the same conclusion, that when we have a high pulse tired. Pulse and fatigue increased when they grow and intensity of exercise, but it is scientifically demonstrated that the pulse does not generate fatigue. Same thing happens with the lactic acid.

To understand the lactic acid required good knowledge of biochemistry and psychology. However there are many books on the market are old and not updated information regarding the field of lactic acid.
There are some new books that made light of the subject in understanding the metabolism and accumulation of lactic acid

Let's examine some of the most popular statements about this subject.

Lactic acid accumulation causes muscle fatigue.

Lactic acid does not cause fatigue, on the contrary, it is an efficient source of energy.

The amount of lactic acid in the blood can be analyzed with a special device

No lactic acid in the blood. As soon as product is lactic acid and hydrogen decompus lactose. Analyzer analyzes the lactose concentration in the blood lactose (lactose is a "fuel" is important).

Lactose level refers to how the body is tired

Since lactose does not cause fatigue removal from the body depends on the body so use it as a "fuel". The human body just does not tolerate lactose but sometimes preferable to glucose as energy source.

Measurement of lactose is a safe way to measure the performance.

This point is discussed. Although lactose production increased progressively with exercise intensity, the ability to use lactose as energy source varies from one person to another. Ability to use lactose as energy source depends on the level produced by the body to a certain intensity of effort. Taking into account these variables concludes that can not be determined on the basis of this indicator performance level that an athlete can get.

Conclusion:

Not so much athletes were taught that lactic acid is the root of evil. " For over 20 years the sports world is "haunted" by this myth.
The truth is that lactic acid is not due to fatigue during strength training.
Lactose is an important source of energy.