Which of the following will occur when an endurance athlete competes in an event lasting two and a half hours?
(A) The metabolism of fat will decrease - HSC - SSCE Personal Development and Physical Education - Question 16 - 2014 - Paper 1
Question 16
Which of the following will occur when an endurance athlete competes in an event lasting two and a half hours?
(A) The metabolism of fat will decrease.
(B) Fat wil... show full transcript
Worked Solution & Example Answer:Which of the following will occur when an endurance athlete competes in an event lasting two and a half hours?
(A) The metabolism of fat will decrease - HSC - SSCE Personal Development and Physical Education - Question 16 - 2014 - Paper 1
Step 1
A) The metabolism of fat will decrease.
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Answer
During prolonged endurance events, the body preferentially utilizes fats as a fuel source, especially as glycogen stores become depleted.
Step 2
B) Fat will be the only fuel source metabolised.
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Answer
This statement is incorrect. While fat becomes a significant fuel source over time, carbohydrates (glycogen) are also crucial, particularly in the initial phase of endurance activities.
Step 3
C) The metabolism of protein will remain constant during the event.
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Answer
While protein can be used for energy in extreme conditions, its metabolism typically remains low compared to carbohydrates and fats during endurance events.
Step 4
D) The metabolism of glycogen will decrease towards the end of the event.
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Answer
This is correct. As the event progresses and the athlete continues to exert energy, glycogen stores will become depleted, leading to a decrease in glycogen metabolism.
