Flashcards in Chapter 6-Physiological Responses And Adaptations To Aerobic Endurance Training Deck (9)
At what percent of VO2 Max is stroke volume maximized?
What role does glucagon play in aerobic metabolism?
Stimulates increase in plasma glucose concentration.
Does insulin increase or decrease during aerobic exercise?
What role does cortisol play in aerobic metabolism?
Promotes use of fats as it helps maintain normal blood sugars.
What are catecholamines and what is their role in aerobic metabolism?
Epinephrine and norepinephrine, the fight or flight hormones.
Help deliver blood and oxygen to muscles as they elevate the heart rate and blood pressure.
List some long term adaptations to aerobic exercise
Increased stroke volume
Decreased blood pressure
Increased capillary density
Ventilatory efficiency improves
Changes in skeletal muscle that enhance endurance performance include:
Increased capillary supply
increased mitochondrial density
enhancement of oxidative enzymes
increased intramuscular glycogen
Increased muscle myoglobin stores
Short term training, without sufficient recovery, that exceeds individual capacity