1. What is the expected glucose response to submaximal exercise in a fasted state?
2. What effect does exogenous CHO have on blood glucose levels during exercise?
Ans 1: Exercise in the fasted state causes a significant stimulation of energy production via fat oxidation. Decreasing the availability of carbohydrates during exercise through numerous ways leads to adaptation of muscle cells to promote oxidative energy turnover and fatty acid transport. The upregulation of muscle GLUT4 and breakdown of triacylglycerol, diacylglycerol and ceramide contents in muscle is observed.
Ans 2: The intake of carbohydrates while exercising is able to offset fatigue and helps in improving the performance for prolonged exercise and also for high intensity short duration workout. The administration of exogenous carbohydrates helps liver to spare glycogen. This decrease a drop in the level of concentration of glucose. This phenomenon aids to maintain increased rate of oxidation of carbohydrates which is essential to endure intense exercise.
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