NotBirdseye
Well-known member
I wear one of those heart-rate monitoring wristbands, and it's quite interesting what it records on sailing outings. The trace below is a typical one; a nice easy day out, just me and wife, poddling up from Wicor to the top of Southampton water and back. No hassles or alarums at any stage. Nonetheless, my heart-rate was a bit over 100bpm pretty much all of the time (annoyingly, the screenshot doesn't have a vertical scale, but it's about 60bpm when I was asleep and, as as you can see, about 120bpm at peak). The Garmin app therefore thought I'd burnt through about 3500kCal in the day. I asked various doctor friends about whether this was real energy burn or not, and the general opinion was "probably not, but that's quite a high heart-rate!"
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I like the spike at around 7pm where someone clearly thought: "oh s#17". After a brief lull (false sense of security?)