NUTR 512 Lecture Notes - Lecture 5: Glut4, Glycogenolysis, Duodenum
23 Jan 2018
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Energy expenditure and macronutrient metabolism in physically active adults. Carbohydrate: daily cho needs, pre-ex cho: We will be talking about why is it important to take carbohydrates in certain trainings. On a 10km race, you might not need cho load, but for a 20km yes you do. In terms of mitochondria we are to produce energy. glucose using. Glucose is more accessible from the blood than lipids from the blood, but this is not the main reason. We can look at the pool of energy for different substrates: Triacylglycerol from the adipose tissue can provide up to 50,000kcal. Triacylglycerol can provide 3,000kcal: glycogen can provide 2,000kcal. O (cid:449)e (cid:449)ill (cid:271)e depleted the glu(cid:272)ose pool (cid:396)eall(cid:455) (cid:395)ui(cid:272)kl(cid:455), that"s why we need to play with it all the time. The 50,000kcal of fat we can go really far, but only on glycogen we would be limited.
