Answer:

Explanation:
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The part of muscle that he needs to train is the Slow-twitch muscle fibers.
<h3>What are Slow-twitch muscle fibres?</h3>
The Slow-twitch muscle fibers are the muscle fibres that are used to support long distance endurance journey such as the marathon race.
Therefore, the part of muscle that he needs to train is the Slow-twitch muscle fibers.
Learn more about muscle here:
brainly.com/question/13920046
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Answer:
a fitness component is simply a way of identifying a certain part of a persons fitness essentially you are labelling a subset of changes you want to occur as a component
Explanation:
Answer:
Does not push up
Explanation:
When some air near bottom is heated, it does not push up, all it does, is expands in all directions due to its increased temperature (and so increased pressure). ... The cold air moves down only from sides, it can not move down from directly above because of increased pressure of hot air.