re: Elevated heart rate after a tough running day

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First off, what does EPOC stand for? The EPOC acronym stands for excess post-exercise oxygen consumption and has been linked to heightened metabolic rate and increased caloric burn. It refers to the amount of oxygen required to revert your body back to its resting metabolic state after a strenuous and intense workout. Your metabolism converts nutrients into a chemical compound called adenosine triphosphate (ATP) and uses it as fuel during muscular activity. To experience the EPOC effect, you must exert energy using your ATP reserve rather than a steady flow of oxygen. The more oxygen your body needs to restore itself to its normal resting state, the more calories you burn. After an intense workout, your body uses oxygen to restore ATP and repair damaged muscles and cells, which will allow you to burn more calories over an extended period of time. But, your routine jog won’t push your body enough. You have to increase your heart rate through intense exercise to achieve a state of prolonged caloric burn.

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