Answer:
Subtract your heart's resting rate from your maximum rate. For example, if you are 40 years old, subtract that number from 220; your maximum rate is 180. Next, subtract your resting rate or 80 in this example. Your heart-rate reserve is 100 beats per minute.
It helps them and make them better thats how
I have shown my work on a piece of paper. If you need any help, let me know.
<span>sending more vibrations directly to the cochlea
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I believe it is Fast-twitch muscle fibers. Slow-twitch fibers are used for people who exercise for a long period of time such as running, swimming, and cycling.