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The effect of sports activity on the phosphagen system

Zeyd Taregh avad¹ Farnaz Seifi²

Abstract :
The effect of sports activity on the phosphagen system In general, to provide the energy needed by muscles, there are three ATP energy production (renewal) devices, which are: - 1 Creatine phosphate or phosphagen machine (ATP-PC) - 2 Anaerobic glycolysis or lactic acid machine - 3 Oxidative or aerobic phosphorylation device These three devices meet the needs of muscle metabolism in various conditions of physical activity. Different sports have special ways to generate energy. Sprints, jumps and throws are sports that require a lot of force in a short time, so the ability to produce energy is very important in them. On the other hand, two marathons, long swims and all endurance runs and desert climbing are sports that require little power, but the necessary energy must be provided at a low level for a long period of time. Therefore, in activities where power is more important, the phosphagen system and, to a lesser extent, the anaerobic glycolysis system is responsible for renewing ATP, and in long-term endurance sports, the oxygen system must work dominantly to provide the necessary energy gradually using oxygen. and provide intramuscular fuel (substrate). The phosphagen system and anaerobic glycolysis can both rapidly regenerate ATP in the cytoplasm, and this is an advantage that can respond when the cell needs immediate ATP production (eg, very intense exercise) (Park et al., 2020). But their disadvantage is that they quickly introduce metabolic products (Pi, hydrogen ion) into the cytoplasm and cause an increase in acidosis and, as a result, a decrease in performance. [So, we cannot use these two systems for a long time] (Finaud et al., 2006). Phosphage device or ATP-pc Creatine-phosphate is one of the high-energy compounds that quickly regenerates ATP at the surface of muscle fibers. Creatine phosphate (CrP) can be stored in small amounts in muscle fibers, and whenever the high-energy bonds in its structure are broken, a significant amount of biological energy is released. It is clear that this energy corresponds to the energy required to regenerate ATP. In other words, as long as there is enough CrP in the muscle fibers, ATP will be regenerated at the same rate as it is broken down (by energy from the breakdown of Pc). Therefore, for each molecule of CrP that is broken down, one mole of ATP will be regenerated. The total amount of ATP and CrP in muscle fibers (together called phosphagen) is very low (Miller, 2023). In general, there is a total of 0.6 mol of phosphagen in the muscles of men and 0.3 mol of phosphagen in the muscles of women. Therefore, the amount of energy that can be delivered in this device is small and limited. In fact, if a person is supposed to run 100 meters with his maximum speed and power, the phosphagen reserve of his activated muscles will probably be exhausted at the end of the work. However, the advantage of the phosphagen device lies in the speed of providing energy, not in the amount of energy in it. This issue is very important in relation to physical activities and intense short-term sports. For example, activities such as fast running, jumping, swimming, which are done for a short period of time, all rely on phosphagen in the muscles (Yamasaki, 2022).

Keywords : sports activity phosphagen system

زبان مقاله : انگلیسی
محور مقاله : فیزیولوژی ورزشی کاربردی
محل انتشار : دومین همایش‌ بین‌المللی فیزیولوژی ورزشی
آدرس وب سایت کنفرانس : sportuma2023.ir
کد IOI مقاله : XKZE-KKHGH
لینک مستقیم مقاله : https://isnac.ir/XKZE-KKHGH
نمایش چکیده فارسی : https://isnac.ir/SA/XKZE-KKHGH

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جستجو

The effect of sports activity on the phosphagen system

Zeyd Taregh avad¹ Farnaz Seifi²

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جستجو

The effect of sports activity on the phosphagen system

Zeyd Taregh avad1 Farnaz Seifi2

سایر مقالات ارائه دهنده

سایر مقالات محل انتشار

Zeyd Taregh avad¹ Farnaz Seifi²