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Old 07-03-07, 04:40 PM   #1
'nother
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PowerTap, "Recording Control": HR or Speed?

Which do you use, and why?

Why do I ask? I had been using Heart Rate as the recording control for a long time. I can't remember why. Thinking I might have some influence over HR-related data dropouts, I switched to Speed the other day. My habit is to grab the PT data with PowerAgent and "Merge" all of the individual 'ride-ettes' that show up in the list, then use the resulting data to upload into TrainingPeaks.

I guess it's obvious but it seems like there is quite a difference in the TrainingPeaks analysis (CP #s, probably MMP as well) when you have Speed instead of HR for recording control, especially on a ride with a lot of stops (traffic signals and such). I don't think my fitness improved that much, but a recent ride showed everything longer than CP30 *way* higher than I was expecting based on my PE of the ride. Even some shorter CPs seemed higher than I thought they should be.

What are others' experiences with this? Have I screwed up? Should I go back to HR?
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Old 07-03-07, 09:54 PM   #2
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I use speed......can't say why except every computer I have ever had used to speed to start recording. If I had it set to heart rate it would record my 1 hour rest at Starbucks. How embarrassing would that be....
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Old 07-03-07, 10:06 PM   #3
'nother
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^^ I suspect most (PT owners) use speed control. I think it's the default.
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Old 07-04-07, 02:41 AM   #4
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Speed. Stops less than 5 minutes still factor into your normalized power calculated in cyclingpeaks, so the gaps in recording are counted as zero's anyway.
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