Metabolic And Muscle Adapations To Chronic Exercise

Question 1

Muscle mitochondrial content increases:

Answer 1

This increase enhances the capacity of muscle to synthesise atp from aerobic breakdown for carbs and fat

Question 2

Fatty acid uptake increases:

Answer 2

Increased capillary density and lipoprotein lipase in the muscle. These facilitie delivery and hydrolysis of lipoprotein bound to be used in exercising muscle

Question 3

Rate of glycogen breakdown decreases

Answer 3

Endurance training increases muscle glycogen content but it loses muscle glycogen breakdown, which reduces the production of amp and pi

Question 4

Glucose uptake decreases

Answer 4

Glucose uptake is decreased in wel trained individuals despite of increased glucose transporter

Question 5

How does endurance training increase vo2 max

Answer 5

Increased stroke volume hence increased maximal cardiac output

Thus the increase in vo2 max by endurance training is mainly due to enhanced oxygen delivery

Question 6

Endurance training decreases carbohydrate utilisation during exercise

Question 7

Effect of endurance training on muscle mitochondrial protein:

Answer 7

Endurance training increases mitchondrial proteins, particularly those proteins that are involved in atp synthesis, electron transport chain and beta oxidation