07-18-2017 01:15
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07-18-2017 01:15
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I see that I regularly have 20 minutes Peak, but I know I haven't done anything different during those times

07-18-2017 04:20
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07-18-2017 04:20
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Fitbit define peak as:
"Peak zone, which means your heart rate is greater than 85% of maximum, is the high-intensity exercise zone. The peak zone is for short intense sessions that improve performance and speed."
taken from: https://help.fitbit.com/articles/en_US/Help_article/1565/
I find that on long hikes I can get some peak minutes without expecting to.
