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Applied anatomy and physiology- section A
Energy systems
Lesson 4
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Abi Russell
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Cards (12)
How long does the ATP-PC system provide energy for?
8-10
seconds.
Are stores of phosphocreatine limited?
Yes
When can the energy in the ATP-PC system replenish itself?
During
low
intensity
exercise
.
How long does ATP last for?
2
seconds
How long does phosphocreatine last for?
6-8
seconds.
What type of exercise is involved in the ATP-PC system?
Anaerobic
/
maximal
exercise
What detects high levels of ADP?
Creatine Kinase
(enzyme)
What enzyme breaks the phosphocreatine bond?
Creatine kinase
Advantages of the ATP-PC system:
-Energy is released quickly
-ATP is resynthesised quickly
-high intensity
, short duration
-short recovery time
Disadvantages of the ATP-PC system:
-limited
stores of
phosphocreatine
-High
intensity
exercise
can only be done in a
short
period of time
-full recovery takes
2-3
minutes
During exercise, what does the energy continuum do?
Rise
What are the energy thresholds?
The time when one system becomes
exhausted
then the other
takes over.