I NEED HELP!I am a 15 year old girl with a 76 beats per minute and im trying to find out % target heart rate i should have.

Question

jebonna · Answer

Work out your maximum heart rate:
220 - 15 = 205bpm

This is usually used for exercising, so it will give you the range of heart rate in bpm of what you should have or aim for whilst exercising:

205 / 100 x 50 = 103bpm
205 / 100 x 70 = 144bpm

So when exercising you should aim for a range of bpm of 103bpm-144bpm

The average heart rate whilst resting is 70bpm-100bpm

riot2015 · Answer

so im supposed to answer these:
Maximum Heart Rate: (220-age):
Target Heart Rate: (220 – age x .65 to .85) :
....so i should put 205 for the first one and what for the second one?

riot2015 · Answer

@jebonna

riot2015 · Answer

I dont get how i am supposed to pic a number between .65 and .85