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1answer
62 views

I can control my heart rate “like a muscle”. Is it safe? What could the mechanism be?

First off, sorry if this is inappropriate for this board. I couldn't find a "Health" sub-SE. A few years ago, I was messing around with the concept of "psi" (an energy that supposedly exists in ...
12
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0answers
732 views

Firstbeat Energy Expenditure Algorithm

I am looking for an implementation (or a document that describes the actual algorithm) for the energy expenditure/VO2/EPOC calculation from the heart rate variability. A few white papers about ...
1
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0answers
61 views

Stride, heart, respiration in sync when running… What's this called?

Background: I wasn't the fittest kid -- still not as an adult -- and I wasn't fond of running, as I'd get exhausted quickly and/or get a side-ache/stitch. In general I avoided exerting myself. On one ...
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0answers
29 views

What is a reasonable target heart-rate for beginners bodyweight workout?

I just started the beginner workout program of You Are Your Own Gym. The first two weeks are described as "low intensity" aimed at "muscular endurance" using "ladders". Is it meaningful to worry ...