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Mary is 14 years old. Her resting heart rate 70 beats per minute. Calculate 50% of Mary maximum heart rate to fine her target heart rate

Respuesta :

Answer:

Mary's target heart rate  is 103 beats per minute (bpm).

Explanation:

The maximum heart rate (MHR) is the rate at which the human heart of a given person reaches the highest demands. At rest, the heart rate is about 60 to 80 beats per minute.

MHR = 220 - age

So, for Mary: MHR = 220 - 14 = 206 beats per minute (bpm)

Now we can calculate Mary's target heart rate:

Target heart rate = MHR * 50% = 206 * 0.5 = 103  beats per minute (bpm)

Hope this helped!

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