HMS, BM EQ-Bank 142 MC

A sprinter runs 100 metres in 10.2 seconds. Which energy system would be the predominant source of ATP during this performance?

ATP-PCr
Glycolytic (Lactic Acid)
Aerobic
Both ATP-PCr and Aerobic

Show Answers Only

\(A\)

Show Worked Solution

A is correct: The ATP-PCr system is dominant for high-intensity activities lasting 0-10 seconds

Other Options:

B is incorrect: The Lactic Acid system dominates from 10-60 seconds
C is incorrect: The Aerobic system is for longer duration activities over 2 minutes
D is incorrect: While there is some overlap, ATP-PCr clearly dominates this short duration