MEDI2008 Lecture Notes - Lecture 1: Atherosclerosis, Elastic Fiber, Adenosine
24 Jul 2019
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Approximately 50% (sedentary) 70 (training) % of daily calories intake. Too much intake converted and stored as adipose tissue, or removed from body in faeces. Cho is transported as glucose and stored in the muscles and liver as glycogen. Glycogen stored in the liver is converted back to glucose as needed and transported by the blood to the muscles where it"s used to form atp. Glycogen stores are limited, which can affect performance. One hour of high intensity exercise decreases liver glycogen by 55% Two hours almost depletes the liver and muscle glycogen. Hitting the wall = occurs when exercise continues to the point that compromises liver and muscle glycogen. During low intensity exercise fat serves as the main energy substrate. High carbohydrate low fat foods (eg rice, pasta, tinned fruit, bread, lemonade, creamed rice) Eg: sports drink, gels, 200g serve of steamed rice has about 20 35 grams. The most plentiful source of potential energy in the body.
