![]() ![]() ![]() Studies have found that the magnitude (amount of elevation in oxygen consumption) and duration (length of time the oxygen consumption is elevated) of EPOC is dependent on the intensity and duration of exercise. The physiological mechanisms responsible for this increased metabolism (all chemical reactions in the body to liberate energy that is measured by oxygen consumption) include the replenishment of oxygen stores, phosphagen (ATP-PC) resynthesis, lactate removal, and the increased ventilation, blood circulation and body temperature above pre-exercise levels (Borsheim and Bahr, 2003). This represents the oxygen consumption above resting level that the body is utilizing to return itself to its pre-exercise state. The exercise after-burn, or the calories expended (above resting values) after an exercise bout, is referred to as excess post-exercise oxygen consumption or EPOC. The purpose of this article is to present a research update on the exercise after-burn and all consequential factors that influence it. Although enticing to the exerciser seeking optimal weight loss, rarely (if ever) is there any scientific evidence validating the particular workouts post-exercise capability to incinerate fat faster. For years, there have been numerous claims in the media of stepped up fat burning after particular workouts. Just pick-up a recent trade magazine on the news shelf and you are sure to read about a new exercise program that will accelerate the rate at which you burn fat after completing the particular workout.
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