@bimb1953 wrote:
What does custom mean
For many folks, myself included, the standard zones are either too low on the upper (workout) end or too high on the lower (resting/sleeping) end, or both. Using my metrics as an example, due to the various formulas used by the Fitbit folks they've decided someone my age cannot exceed 161 BPM when exercising, however, I can push my heart rate up into the low 180s during a race or when running hard climbing a hill; the flip side is also the case in that their formulas say someone my age cannot have a heart rate much below 50 BPM when resting; the thing is, my sleeping heart rate is usually 2 BPM on either side of 35.
With the above said, I created a Custom Zone which ranges between 30 and 190; that way many of my heart rate graphs are not clipped at the upper and lower ends.
