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Lactic acid, usually the talk about this acid pops up when it comes to sports or walking in the mountains, or to fatigue when you are not trained. I remember first hearing about it at school when there were competitions between classes, running. However, it is not the only occasion in which lactic acid is the protagonist. In the food industry it is used as an acidity regulator. Among all the various bacteria present in the mouth of each of us, the acidophilic lactobacillus has the highest cariogenic power, moreover. This means that it feeds on the glucose present in food residues, forming lactic acid as a waste product. This is a danger to our teeth.
Lactic acid: what it is
But in the end what is this lactic acid? Also called lactate, it is a by-product of anaerobic lactacid metabolism. It occurs as a toxic compound for cells which when accumulated in the bloodstream leads to a feeling of muscle fatigue. L'lactic acid it is already produced when you do low intensity physical activity, indeed, the red blood cells also continuously form it in conditions of complete rest.
Lactic acid: causes
Although toxic, this one lactic acid it is not to be considered a pure and simple waste product because it has its own utility For example, through a series of enzymatic processes, it finds a purpose in resynthesis of intracellular glucose.
The real responsible for the increase in blood acidity is hydrogen ion H +, not lactic acid, as everyone believes. Lactic acid, of course, gives its contribution. It is produced in muscle under stress, especially in fast or pale fibers. This is why athletes when they have brilliant performances, for example in track pursuit in cycling or in 400-1500 meters of athletics, both tests anaerobic lactacid, it's because they produce over 20% more lactic acid than to a normal person.
Lactic acid in the muscles
L'lactic acid it is formed in the muscles, on average an adult, male, normally active, produces about 120 grams of which 40 come from tissues such as the retina and red blood cells. In our body, we have defense systems to protect ourselves from lactic acid that they are capable of convert it back into glucose, thanks to the liver, while the heart metabolizes it for energy.
Lactic acid: symptoms
Usually an accumulation of lactic acid coincides with pain, but they are not as directly related as people think. The real symptoms are mostly related to fatigue. Sure, it depends on physical to physical and at the same intensity of exercise we do. In general, it is true that the lactic acid produced is produced more by those who are less trained, therefore athletes produce less than sedentary and lazy people, with obvious consequences.
Lactic acid pain
As anticipated, it should be clarified that lactic acid it is not directly responsible for the muscle pain that we will happen to feel the next day long hike or a very intense workout. The real cause is the muscle microlacerations which give rise to inflammatory processes.
As for the production of lactic, it begins and gradually it creates accumulations in the muscles and blood when the speed of synthesis exceeds the speed of disposal. All it therefore depends on the efficiency of the metabolism anaerobic lactacid and disposal systems. To avoid the hassles associated with this acid, they are made targeted workouts to improve these characteristics.
Lactic acid: remedies
As we said, the main remedy and the training is more effective. There are various types, for example that based on continuous effort at heart rate values close to anaerobic threshold, or that based on the method of working at intervals. In addition to the two main ones just described, there are others that mix methods or introduce novelties.
Lactic acid: how to dispose of it
An excellent book with useful tips for disposal is “Lactic acid and sport. From physiology to training " of Enrico Arcelli and Mauro Franzetti, also available on Amazon.
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