- I sistemi energetici -
Sistema aerobico
One of the most popular sports centers in almost all seems to be the infamous aerobic work. In this system, the muscular tensions are very low, below 30% of the ceiling. energy substrates are supplied initially by carbs, after 30-40 minutes, mainly from fat. During muscular work the consumption and replenishment of oxygen is the almost in balance allowing a period of performance that goes over a minute to get a few hours, the system is carrying out long-distance runners.
anaerobic system alactacid
In this case the muscular tensions are very high and the work Intense may be extended only for about 8-10 seconds, the power is restored after spending about 3 minutes. This system depends on the energy storage CP (creatine phosphate) and does not require oxygen. In addition to the 8-10 seconds of maximum tension the fc (phosphocreatine) tends to run out so if you want to continue working in the body is forced to use another mechanism, namely the anaerobic lactate.
anaerobic lactate system
muscle tension is quite high and can be extended up to about 45 seconds.
After the initial effort, the contractile capacity is restored after about 3 hours, time of disposal of lactic acid, while specialists in athletes may fall below 8min.
In this system the high presence of lactic acid significantly limits the ability to continue training.
The biochemical reaction is very complex, I quote a small part The reaction part by phosphorylation of glycogen by the energy supplied by ATP during contraction, even in this mechanism is not the presence of oxygen .
schemino We carry a very easy to understand where they are described step by step reactions that occur in the muscles
acid the attic and its effects on muscle:
-speed reduction of glucose metabolism -pH reduction (to measure acidity and alkalinity) and the consequent difficulty of muscle contraction because of alteration of actomyosin bridges
Lactic acid and its fate :
-is converted into pyruvic acid- is metabolized through the liver to glycogen
For this I have concerns that the pH of the way of writing articles about the ph where we understand exactly what it means to be acidic and alkaline mode.
