The anaerobic energy systems

Question 1

What is ATP?

Answer 1

An energy rich compound stored in muscle cells

Adeonosine ribose phosphate x 3

Question 2

Describe the phosphocreatine system

Answer 2

PCr + ADP + H —> ATP + Cr

Question 3

Define glycolysis

Answer 3

The enzymatically controlled breakdown of glucose to resynthesises ATP

Question 4

Describe lactate and lactic acid

Answer 4

Lactate:
Not acidic
Produced in glycolysis
Lactate is produced via the conversion of pyruvate to lactate

Lactic acid:
Weak acid
Formed during anaerobic glycolysis that in the body quickly dissociates to release a hydrogen ion
The remaining compounds bing with a positively charged sodium or potassium ion to form the acid salt lactate

Question 5

How can we measure the PCR system

Answer 5

Estimate muscle PCr content pre and post exercise using muscle biopsy
Field tests- PCr is related to muscle power (e.g. short sprint)

Question 6

What are the adaptations to anaerobic training

Answer 6

Stimulates recruitment of large number of type 2 muscle types- leads to muscle hypertrophy
Can transform type 1 to type 2
Increase enzyme activity
Increase muscle buffering capacity

Question 7

What is the difference between anaerobic power and capacity?

Answer 7

Anaerobic power is the peak rate at which ATP can be replenished anaerobically
Anerobic capacity is the total amount of ATPP that can be replenished anaerobically