Tuesday Worlds power map / Golden Cheetah question

August 17, 2011 at 1:32 pm 4 comments

My schedule was freed up enough for me to ride the Tuesday Worlds ride tonight leaving from Bob’s Bikes. Great people, great ride, great training. Definitely makes for a very colorful power map thanks to Golden Cheetah (excellent software).

I’ll write up more about Golden Cheetah when I have time, but I am wondering if anyone else has used it and observed trends in their Pedal Force / Pedal Velocity graphs. I seem to get very different data when racing vs training … see graphs below

Blue/green circles are during the 8/16/11 Tuesday Worlds race ride. Note the vertical orientation.

Red circles are during my climbing and riding before the Tuesday worlds ride. Note the diagonal orientation that matches the expected curve.

Georgia Cycling Gran Prix Time Trial – Saturday, 7/23/11 – mostly vertical orientation, slightly sloping in expected direction

Georgia Cycling Gran Prix Covington Criterium – Saturday, 7/23/11 – vertical orientation

Crossroads Classic – Salisbury Circuit Race – 8/7/11 – note the reverse trend sloping in exactly opposite than expected direction

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Entry filed under: Training. Tags: , .

Crossroads Classic maps River Gorge Day 1 – Time Trial and Criterium

4 Comments Add your own

  • 1. Travis L  |  August 17, 2011 at 2:21 pm

    Really interesting. Maybe it’s due to drafting/attacks. In a pack, cadence can stay the same as the speed is fairly constant, but attacks mean more and less power at same RPM. In training, effort more closely matches RPM since you’re in the wind. As you noted, the TT data seems to match the expected slope better since no drafting, more constant power.

    Reply
  • 2. kartoone  |  August 18, 2011 at 12:26 pm

    Yeah, I think drafting plays a big role – sometimes you are at the front with no draft and sometimes you are drafting and that would lead to different force being applied for same wattage. Makes sense! Also, I wonder if attacking explains some of the wildly different cadences. If I am attacking, then I’ll usually do it at a lower cadence, but if I’m following somebody else’s attack then I will spin whatever gear I am currently in up to a really high cadence and then downshift to something more comfortable once we are off the front.

    Reply
  • 3. bamaearl  |  August 25, 2011 at 9:20 am

    I was glad to see you at the Tuesday Werld’s. You did good to get them on pump house!
    I cant wait to see how you and Pat and Stuart do at River Gorge. I am expecting for the best… 1,2,3.

    Reply
    • 4. kartoone  |  August 25, 2011 at 2:09 pm

      Thanks James – it’s going to be a packed field at River Gorge. Pat and I are both on really good form, though, so I’m thinking we are both going to do really well.

      Reply

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The southminster switchbacks further up the hill plus run-in to the berm (bottom) Hwy 31 left sidewalk- hidden gem in Vestavia. Check out my road bike tracks on the berm in lower left pic. Samford at 400watts across the top of Vestavia Dr

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Quick reference stats

Anaerobic Threshold:
Power:315 watts
Heart rate:180 bpm
Maximums:
Power:1097 watts (5s)
Heart rate:198 bpm (5s)
AT power estimated by critical power curve in Golden Cheetah, which predicts I should be able to maintain 315 watts for 1 hour.

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