Question

11. Which of the following hormones does not increase in response to exercise? a. cortisol b. epinephrine C. glucagon d. insulin e. all of the above increase

Answer 1

The correct answer for this is the option "d" i.e "insulin ". During exercise, insulin levels decrease despite the increased need for glucose uptake by the muscles and it decreases so as the cells can undergo more gluconeogenesis or glycogenolysis, and blood sugar can rise. Even though insulin concentration decreases in the blood but the supply of insulin is maintained to the muscles by the increased flow of blood so that there is no struggle for energy in the muscles during exercise. To keep the insulin levels low it is recommended to avoid sugary foods before exercise to prevent glycogen storage instead of it used as fuel for physical activity.
Rest all hormones increases during exercise. Epinephrine plays an important role in maintaining the cardiovascular system during exercise as it increases the heartbeat rate which ultimately increases the cardiac output which supplies more oxygen to the muscles during exercise. Cortisol which is the steroid hormone supports energy metabolism during long periods of exercise by breaking down the proteins and triglycerides into glucose formation. Glucagon also increases to boost glucose generation to meet the energy requirements during exercises. It is produced by the pancreas to stimulate the release of free fatty acids from adipose tissues.