The following energy system(s) is\are able to provide energy very rapidly______________________?
Correct answer: A. ATP-PCr system
- A. ATP-PCr system
- B. Lactic acid system
- C. Oxygen system
- D. both b and c
Explanation
The ATP-PCr, or phosphagen, system supplies stored energy almost immediately and is dominant in very short, explosive efforts such as sprint starts. The lactic acid system also works quickly, but it becomes more important after the initial phosphagen supply.
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