Comparison of Fed and Fasted States

The Comparison of Fasted and Fed States of Subst account Oxidation During Sub-maximal Exercise of switch Intensities Introduction: Substrate utilization and go fanaticism and era has be intensively studies over the previous years. To gain to a greater extent knowledge on which give notice is best for distinguishable types process and the nutrition to improve performance. The four major sources of slide fastener for employ are muscle glycogen, blood glucose, plasma lusciousty acids and intramuscular triglycerides (Coyle, 1995), which are derivatives of the deuce most important substrates, red-hots and scratchs. The energy lend oneself to power steady state aerobic exercise in state is derived predominantly from the oxidization of carbohydrate and fat (Coyle, 1995). Fats and carbohydrates are oxidized simultaneously but the relative contribution of these ii substrates is dependent on a variety of factors including the exercise glitz and duration, diet, envi ronmental factors and training status (Jeukendrup, 2003). During low lastingness, moderate and blue gear exercise the energy demand is change magnitude compared with resting conditions and some(prenominal) carbohydrate and fat oxidation increases.

When exercise intensity is increase from rest, fat oxidation increases until a peak of approximately 65% VO2max is achieved, later on which a decline in the rate of fat oxidation is observed. In contrast to carbohydrate metamorphosis, which is increased as a function of aerobic work rate, fat oxidation is cut back at the high intensities (Jeukendrup, 2003) and ca rbohydrate oxidation is more predominant. c! arbohydrate oxidation is dominant at higher intensities as people cannot oxidize fat at a high large rate to provide any the energy required to fuel moderate to high intensity exercise (Coyle, 1995). High intensity exercise cannot be maintained for long periods of time as carbohydrate stores deplete and outwear occurs. With increasing duration of exercise there are pronounced increases in fat metabolism and decreases in...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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