You train so intensely that your muscles burn and you gasp for breath. Then you have to slow down for a tank or two minutes, fresh energy, and then very quickly. This training technique was used in all endurance sports since the 1920s. Now George Brooks of the University of California at Berkeley has shown why interval training makes you a better athlete (American Journal of Physiology Endocrinology and Metabolism, June 2006).
In each muscle cell are mitochondria, thesmall furnaces, which burn fuel for energy. An important fuel for the muscles during exercise is the sugar, glucose. In a series of chemical reactions, glucose is broken down step by step, with each step releasing energy. If sufficient oxygen is present, the glucose remains all their energy until only carbon dioxide and water are blown off by the lungs. However, when not enough oxygen is available, the chemical reactions stop at lactic acid which accumulates in the musclesand spilling into the bloodstream. Lactic acid makes muscles acidic and causes a burning sensation. This latest research shows that lactic acid is the most efficient source of energy for the muscles. All that helps to break the muscles to produce lactic acid faster you a better athlete, because they increase your stamina and allow you to move quickly when you are tired.
As lactic acid builds energy in the mitochondria, burnt everything that increases the mitochondria, alarger furnace and helps to increase endurance. Lactic acid from the cells into the mitochondria by special proteins called lactate transporter molecules out, so that will build all these molecules increases stamina. An enzyme called lactic acid dehydrogenase is necessary to start the reaction, then increased somewhat, that this enzyme also help. Interval training, not all three: it enlarges the furnace (mitochondria), increases lactic acid transporter molecules, and increasesthe amount of lactic dehydrogenase.
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