Progression. A principle that refers to the gradual increase in the amount of exercise or overload sustained over a specified period of time Recovery Heart Rate.
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you didn't add the following careers so free points I think?
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More oxygen is also going to the muscles. This means the heart beats fewer times per minute than it would in a nonathlete. However, an athlete's heart rate may go up to 180 bpm to 200 bpm during exercise. Resting heart rates vary for everyone, including athletes.
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