Exercise and heart rate mathematics - Training Enrollment Network

Exercise and heart rate mathematics

Solution: (1) 13-year-old boy's maximum heartbeat per minute b = 0.8 * (220-13) =165.6, take165;

(2) At the age of 50, the maximum heartbeat per minute b = 0.8 * (220-50) =136;

If the heartbeat is 24 times in ten seconds, the heartbeat per minute is 24/10 * 60 =144 > 136, the elderly are in danger.

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