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Design an experiment that determines the amount of time needed for a person’s heart rate to return to normal after exercise

User Rhu
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Answer:

You could record yourself doing a cardio exercise such as running or using a jump rope for a certain period of time using a stop watch or a phone timer. Then stop after about 5-10 minutes and using the stop watch see how long it takes for your heart rate to go back to normal.

Step-by-step explanation:

User Jonny Lin
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