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OpenStudy (anonymous):

Which of the following statements is TRUE about heart rate and exercise? A. It is best to exercise your heart as hard as possible. B. Maximum heart rate can be calculated by taking 220 minus your age. C. Your recommended exercise heart rate is 30% of your maximum heart rate. D. All of the above are true statements.

OpenStudy (anonymous):

B. Maximum heart rate can be calculated by taking 220 minus your age.

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