# Aerobic Heart Rate Questions

**URL:** <https://boards.straightdope.com/t/aerobic-heart-rate-questions/137572>\
**Category:** Factual Questions\
**Created:** [November 19, 2002, 6:20pm UTC](https://boards.straightdope.com/t/aerobic-heart-rate-questions/137572 "2002-11-19T18:20:19Z")\
**Posts on this page:** 3\
**Page:** 2

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**Author:** ![Demo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/demo/32/8472_2.png) [@Demo](https://boards.straightdope.com/u/Demo)\
**Post date:** [November 20, 2002, 6:37pm UTC](https://boards.straightdope.com/t/aerobic-heart-rate-questions/137572/21 "2002-11-20T18:37:45Z")

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I just wanted to add a quick note on barbitu8’s formula using 220-age. I work in a cardiology office and that is also the number we use to estmate MHR. I also agree with what others have said here that a MHR calculated using only age is not going to be very accurate.

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**Author:** ![bup](https://avatars.discourse-cdn.com/v4/letter/b/6bbea6/32.png) [@bup](https://boards.straightdope.com/u/bup)\
**Post date:** [November 20, 2002, 8:00pm UTC](https://boards.straightdope.com/t/aerobic-heart-rate-questions/137572/22 "2002-11-20T20:00:39Z")

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OK, so what’s a resting heart rate? When do I measure it?

If I’m lying in bed, my heart rate’s in the mid-fifties. If I’m sitting at my desk at work, it’s in the mid-sixties.

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**Author:** ![barbitu8](https://avatars.discourse-cdn.com/v4/letter/b/839c29/32.png) [@barbitu8](https://boards.straightdope.com/u/barbitu8)\
**Post date:** [November 20, 2002, 11:26pm UTC](https://boards.straightdope.com/t/aerobic-heart-rate-questions/137572/23 "2002-11-20T23:26:57Z")

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Your HR after awakening is the slowest. Wait a minute after awakening and take your pulse.

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