The aerobic energy system Flashcards
What activities is the aerobic energy system used in?
Marathon
Football match
Triathlon
What is this system used for?
Long lasting
Low intensity activities
How long will the aerobic energy system last?
3 minutes - 3 hours
How is ATP produced within the aerobic system?
Aerobically - uses oxygen
Glucose and fatty acids are burned to create energy
What is a disadvantage of this energy system?
It is slow to engage
What are the 3 main limits when it comes to this energy system?
Lack of fuel
Dehydration
Overheating
Why might there be a lack of fuel?
If glycogen stores are depleted then fatty acids will not be utilised as they are burnt as a mix
How long does it take for a full recovery of this energy system?
2-3 days
What is the best way to recover these stores?
Increase your carb uptake 2-3 hours after exercise for a full recovery
What requires oxygen when burning nutrients?
The cells
Energy supply = …
Energy demands
What is glycogen?
Stored version of glucose
What happens to athletes when glycogen stores are empty?
They ‘hit the wall’
What is aerobic glycolysis?
Glucose is converted into pyruvic acid
pyruvic acid goes into the krebs cycle
What is the difference between anaerobic glycolysis and aerobic glycolysis?
Anaerobic = without oxygen Aerobic = with oxygen
