Conditions definitely factor into this time trial as well. It was a bit breezy today so I am sure it helped me in some places but hurt me in others. I definitely felt the breeze in my face on a couple of the long uphill straightaways.
Another reason for the self-time trail is to get a current heart rate zone profile. I will take the data and plug it into Joe Friel's HR formula to come up with a current HR profile. If I understand his formula correctly, he recommends taking the numbers from the last 20 minutes of a 30 minute time. I hit the Lap button on my Polar a little over the 15 minute mark so that I would have a "Lap Summary" of the final 20 minutes. (Actually my Lap Summary is only 18 minutes, I should have hit it sooner, Doh!)Here's what the numbers look like:
HR Average for entire ride = 175
HR Max = 185
HR average, 1st 15 minutes = 170
HR average, next 18 minutes = 179
1 comment:
Nice work Dave!
I'd set your training zones and LTHR at 175 bpm. You were super motivated for this one and fresh so that can produce lofty race-like HR's that are not valid for training purposes.
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