Run power threshold not improving

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    I’ve been training with 80/20 plans for the past 9 months or so. First following a maintenance plan, then a half marathon plan and now a full marathon plan.

    I’m 8 weeks into my marathon level 2 power based plan and while I’m seeing improvements in my endurance and pace within the power zones, my power threshold has stayed consistent through just about all of my training thus far.

    I normally test using a talk test every few weeks but given this stagnation, I tried a 20 minute test this week in order to rule out any errors in my test execution. The results from my 20 min test were consistent with my flatline talk test results.

    Is this normal or an indication that I’m doing something wrong? Should I shift to a different intensity measurement?


    That sounds perfectly normal to me. You are able to run faster at the same power output and you are able to do it for longer.


    I have been training by power for about two years now. My threshold stays about the same; however, my pace is faster and my watts per KG is higher. All signs that I’m improving.


    The Stryd Power Center Energy Systems Sections advises specific workouts to keep your CP up to date, spaced out over a 90 day period of time. When you are using an 80/20 Training Plan you may not be doing a maximal effort at all of the intensities necessary to get the most accurate estimate of CP.

    A look at your Modeled Ability curve can give you some idea of whats happening, and a coach might be able advise you to adjust or ignore the plateau. I don’t know…

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