Incorrect load calculation for cycling activity

See attached screen grab. All other platforms (Garmin, TrainingPeaks, Intervals) calculated the activity load at ~171. Athletica initially displayed a similar load then after I added the subjective markers it bumped the load up to 209. I manually reset it to 171 but now find it back up to 209. Also I don’t believe the mWR of 4% based on my RPE and Feel.

Obviously this is skewing the future workouts

Hi Dan,
How long have you been using Athletica? Perhaps it’s still getting to know your riding habits. The Workout Reserve compares your best efforts to the day’s workout so perhaps with what the data has, it was a strong effort. Same with your load numbers.

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Thanks for the input @SimpleEnduranceCoach. I have not dug too deeply into Athletica’s workout reserve details so that was more of an off the cuff feeling. Load, on the other hand, is equivalent to TSS unless I am mistaken. That is should be derived from intensity, duration and a few other known data points at the time of the activity. I am more concerned about the load calculation as I use that across multiple products to align my training goals.

Mystery solved but it exposes a possible different defect. Athletica updated my FTP after prompting me about a recommended change. The prompt indicated a suggestion to a specific power zone not my FTP. I thought it was peculiar but it was only of 4-5 watts between two zones. I read the notification a few times to make sure I understood what was proposed. Again, changing my FTP was not mentioned in the notification.

Hey @unospeeder (like your username :laughing:)

Note that Athletica doesn’t calculate your training load based on FTP like TP. Athletica uses Critical Power. You can read up on this in the blog by @Prof and @andreazignoli here: How Athletica Closes the Cycle: From Athlete Profiling to Training Prescription  | Athletica

I’ll leave it to Prof and Andrea to discuss the fine nuances you may find when comparing Fitness Numbers between all the platforms you may use. I would just add that your power profile, which you can find in the Chart sections gets updated automatically and is not a static profile that you may have in TP. Based on this, you can kind of see how the load number can be different from load calculations done by TP or any other platform that uses a static FTP (which in many cases is outdated, unless athlete has tested very recently). Now, of course, since our load calculation is based on dynamic CP, it requires that you’ve completed the test week with CP test. If you haven’t - well, then we don’t have enough reliable data to base your CP on.

You can also turn off the notifications about changes of your zones in your training plan settings if you’d prefer.

WR of 4% (at what point did you hit it?) refers to your 6 weeks best effort. Please share the workout analysis if you can.

Let me know if you have more questions that the blog did not answer?

Thanks, MJ

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Thanks @Marjaana, I should have been using CP not FTP in my post but I am so used to the FTP acronym I did it without thinking. I have found in the 1.5 weeks trialing Athletica that the load calculated for activities tracks very well against other platforms with the CP I have entered. My original issue is a non-issue with the incorrect load calculation stemming from the notification about altering a power zone not the overall CP. The verbiage of the notification may yet be an issue.

The mWR of 4% was hit ~1:30 in to the ride. I have looked back at similar rides in the last month and I see that Athletica is calculating a similar mWR for similar efforts so I’ll chalk it up to a learning curve issue for me.

Lastly, now my calendar for this week shows Monday -Wednesday’s activities compliance as unplanned and the workout descriptions are gone. I can only assume this stems from me updating my CP and the plan recalculating but obviously this is not desired behavior. :roll_eyes:

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Thanks for the clarification. I would suggest @Prof take a look into this for you once he is back in the office.

Please hang in
MJ

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Thanks and have reported this as a bug.

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Thanks @Prof. Another concern I just surfaced related to the plan recalculation. I have an event the 19th of October and prior to the recalculation the plan was the following starting September 23rd:

  • Build 1
  • Build 2
  • Taper 2
  • Taper 1

The plan now is:

  • Build 1
  • Build 1
  • Build 2
  • Taper 1

My gut tells me this new plan does not give me sufficient taper pre-event and I am perplexed as to the shift. Feel free to have a look at the plan and let me know your thoughts.

Hi @unospeeder ,
When I go to your profile I see the roadmap as follows. When you reset your plan the system starts again. So you’ve told the system ultimately you’re wanting a very short plan so the logic is to build you up quickly with a short taper.

Screenshot 2024-10-03 at 5.55.15 PM

Thanks @Prof , that is what I feared but I had hoped it would pull in the week before. When I corrected my CP I had no other option it would appear. Is there any way to accomplish that in the current offering? If not I am back to having manage my own workouts to end up where I want to be on October 19th somewhat defeating the purpose of my trialing Athletica. It also gives me concerns looking forward in the event a similar change is made that causes a reset of the plan.