Recovery process

Question 1

Define ‘EPOC’

Answer 1

The volume of oxygen consumed after exercise to return the body to its pre-excise state

Question 2

Describe the oxygen deficit after low intensity exercise

Answer 2

Low deficit because demand is easily met by the aerobic energy system

Question 3

Describe the oxygen deficit following high intensity exercise

Answer 3

Large deficit as anaerobic energy system can’t meet demand causing OBLA

Question 4

Describe the alactacid component

Answer 4

• Accounts for 10% of EPOC
• Requires 1-4l of oxygen
• Respiration is high in the first three minutes
• Fast component

Question 5

What does the alactacid component do?

Answer 5

• Replenishes 50% of ATP and PC stores in the first 30 seconds
• Replenishes haemoglobin in 1 minute
• Replenishes myoglobin stores and full ATP and PC stores in 3 minutes

Question 6

What does the lactacid component rely on?

Answer 6

Buffering capacity of the blood to neutralise the effects of lactic acid (aims to remove lactic acid)

Question 7

What are the first two ways the lactacid component removes lactic acid?

Answer 7

• Convert to pyretic acid and oxidised for the Kreb’s cycle (50-75%)
• Convert to glycogen in glyconeogensis (10-25%)

Question 8

What are the last two ways the lactacid component removes lactic acid?

Answer 8

• Removed as sweat and urine

- Hydrogen carbonate absorbs hydrogen ions to form carbonic acid and breathed out as CO2