My point is simply the "CP curve" (little dotted red curve) is derived computed as a guess based upon past performance. #3 Updated by Mark Liversedge over 1 year ago ![]() I'm not quite sure what you mean by "Actual performance data" as opposed to what I'm saying, but does my above point clarify this? I think it would be inappropriate to calculate CP based on a single workout. Yes, but CP and AWC would still need to be calculated based on the data from rides prior to (and including) that day. #2 Updated by Mike Patton over 1 year ago I'm not convinced all three are that worthwhile or even reliable when compared to the ACTUAL performance data that is already tracked. Use more fine grained points for estimating the CP curve.#1 Updated by Mark Liversedge over 1 year ago Email me at: mike at podiumbound dot com. I'd be happy to fill in any gaps if I haven't explained this very well. I would like to be able to retrospectively calculate CP for discrete time ranges, given that I haven't been looking at all my athlete's data since they've had power meters. However, even the 'save cp value' button does not save the AWC value, which is another good indicator of a change in fitness so you realistically do need to manually write this info down. If someone has enough forethought, this is easily done by simply writing down or clicking 'save cp value' on a regular basis as you collect data. The second thing I was thinking about the Critical Power Tab is that I think it would be extremely useful to track the estimate of critical power over time. These time intervals coincide directly with crossover points in the dominant energy system the body uses to produce power. There is a strong physiological basis for this distinction as well. The CP-Medium would use the data between 2 minutes and up to 13 minutes, and the CP-long curve would use the data between 10 minutes and 30-45 minutes. A CP-Short curve would use the data between 15 seconds and 2:30 for its estimate. My solution is this: Consider Critical Power to have 3 distinct values: Short, Medium and Long. The implication is that any effort beyond 15 minutes looks to be well below what the math says they should be able to do and it gets more difficult to decide how far below their capacity the athlete has ridden. ![]() My observation, though, is that it does a poor job of predicting the best average power past 15 minutes (or below ~1:30) if the athlete does a lot of maximal intervals between 2 and 10 minutes. ![]() First of all, the dotted line that is used to estimate critical power is particularly fantastic. I use the Critical Power tab basically every time I look at a new file, and have noticed a couple of things.
0 Comments
Leave a Reply. |