LO5: energy systems Flashcards
what are the two anaerobic systems?
ATP-PC system
lactic acid system
what is the name of the only aerobic system?
aerobic system
what intensity and duration is the ATP-PC system?
very high intensity
short duration
what’s the intensity and duration on the lactic acid system?
high intensity
medium duration
what intensity and duration is the aerobic system?
low intensity
long duration
example sport in which the ATP-PC systems used:
100m fly sprint
example sport in which the lactic acid system is used:
400/800 m run
example sport in which the aerobic system is used?
marathon run
where is glycogen stored?
within the liver and muscles
what type of carbohydrate is glycogen?
complex carbohydrate
what type of carbohydrate is glucose?
a simple carbohydrate
- aka simple sugar
What is ATP’s purpose?
Provide energy for cells
What is meant by an exothermic reaction?
Giving off energy
What is an endothermic reaction?
One that requires energy
Advantages of the ATP-PC system?
- requires no oxygen
- immediate with few reactions
- stored within muscles
- non fatiguing by products
Disadvantages of ATP-PC system?
- only lasts 10s
- only 1 ATP: limited
Advantages of the lactic acid system?
- 2 ATP’s, more
- no 02 requirement
Disadvantages of lactic acid system?
- lactic acid
- intensity dependant from 30s to 3mins
Advantages of the aerobic system?
- 36 ATP, high ratio
- non fatiguing
Disadvantages of the aerobic system?
- takes time, 12 to 20 mins
- only low intensity suited
What are the alternative fats the aerobic system uses?
Triglycerides
Palmtic acid
What’s meant by threshold?
Experiencing change
- one energy system domiantining another
What is the fast component also known as?
Alactacid
What is the slow component also known as?
Lactacid
Aim of alactacid?
Replenish PC stores
How fast are PC stores replenished?
50% in 30 secs
75% in 1 minute
100% in 3 minutes
Aim of lactacid?
Replenish glycogen stores and remove lactic acid
How is lactic acid removed and glycogen replenished?
The reversal of glycolysis
The cori cycle
What is the processes of the cori cycle?
Removed through the liver where its converted into glycogen and returned to muscles
Important of lactic acid?
Energy source particularly for the heart
What does EPOC stand for?
Excessive post exercise oxygen consumption
What are the two components of EPOC?
Fast: alactacid
Slow: lactacid
How are PC stores replenished?
Using energy from the aerobic to reverse the og exothermic reaction
Equation of PC replenishment:
Creatine + phosphogen + energy ( from the aerobic system ) = PC
How much oxygen is used to replenish PC?
3 to 4 litres
What’s meant by oxygen deficit:
The difference between oxygen demand and availability
- what must be paid back later
how long does the slow component take?
30 mins to 3 hrs
how much 02 is used during the slow component?
5-10 l
how much 02 does the fast component use?
3-4 l
what does lactacid replenish?
glycogen stores through the removal of lactic acid
what does alactacid replenish?
PC
