Running Power / Stryd

Got a nifty new Fenix 7X Pro today so I’m looking forward to trying tomorrow’s run by power, since my Instinct didn’t support performing workouts by power via Stryd. I’m hoping the integration is seamless!

Question about the zones. The zones Stryd calculates are different than the Athletica ones. See attached screenshots. Specifically the high zones. I think I will never make 6 or 7 and if I run around 4:10 my runningpower is around 330. Any way to adjust these? So far Athletica is not changing zones after all my runs which contain power.


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I have the same thing going on. My Athletica power prescriptions seem very low. I can’t hit the paces it’s prescribing for Z2 (which is all Z1 in Stryd) at the power it’s prescribing.


I’m still not seeing power data in newer runs in Athletica. I see it in both Garmin (Stryd power data) and in TrainingPeaks. Do I need to tell Athletica to look for this data somehow?

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I don’t get power presciptions on my Garmin watch. They are based on heartrate for easy runs and pace based for harder runs.


Is there anything I need to change in the settings?

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Hi @Harlerunner … I think I mentioned it in some other thread but to our knowledge we don’t think that Garmin allows us to push power recommendations. As least that was our conclusion after reading the documentation. Do let us know if you or anyone else finds out anything different.

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I’m using power presciptions for years now with different watch manufacturers and training plattforms. The problem with Garmin is that it doesn’t work out of the box because of Garmins implementation of running power.

So if TrainingPeaks or Intervals.icu sends a session that is based on power alone, the Garmin screen for structured workouts on the watch can’t handle it. You only get time I think, but not power values. You have to use a third party datafield like the Stryd Datafield to make use of the power prescriptions. This is working fine for me for years now.

Regarding how such a sessions needs to be formated or pushed, you could probably talk to David Tinker. I can use power based workouts build in Intervals.icu on any watch without problems - even the ones Athletica pushed to Intervals.

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For what it’s worth, I have no problems getting prescribed-by-power workouts in Garmin from Final Surge and Stryd. As a workaround on workout days, I’ve been creating my sessions in Final Surge and pushing them over. I have no clue what technical challenges there are there, but it’s at least theoretically possible…sometimes… :slight_smile:

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Are they just on the Stryd Data field screen though, not the actual Garmin Workout screen?

If the workout is only based on power, you get the Garmin Workout screen, but without targets. Basically it’s useless. You need to use the Stryd Zones Datafield - like described in the Styd FAQ:

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@Harlerunner i believe you’re correct- we need to create a athletica power zone data field similar we have built with Workout Reserve with @Phil and @Andrea in Garmin IQ …

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I’m not sure about that… I think every runner who uses power has his “infrastructure” already set up. In case of the Garmin/Stryd user, it would probably be best to deliver a workout, that the Stryd Datafield could work with. Otherwise you’d need to create a data field, that works with all the power sources available for Garmin. Some third party data fields need the sensor be paired as a power sensor, while Stryd needs to be connected as a food pod. Then Stryd users would still need to use the Stryd data field to have all the advanced metrics captured. And with the limitations of number of IQ data fields, you would take up another valuable space with your additional field.

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Thanks :folded_hands:
Do you have your stryd and athletica power zones matching?

I noticed that Athletica and Stryd calculate almost identical CP values. You can’t set up Stryd zones yourself, so they “match by accident”. :wink:


I never bothered with Stryd zones, because I used to prescribe workouts by percentage of CP - adapting the training system used.

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Ok so when you run, your power zones are showing from your stryd zones field - and luckily they match so no problems there.
I’ll have to play around with mine once I’m back and running …
MJ

Same here, the zones match within a couple of watts. So as long as you know generally what zone you are supposed to be in per interval it’s easy to do

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It depends on how you set up the structured workout. Here’s an example from intervals.icu that’s based on percentage of CP/FTP:

So everytime I put this in my calendar, I get exact targets based on my actual FTP at that time. It does not know or need my Stryd zones and the Stryd data field is ok with having an upper and lower target for each interval.

I could also work with zones, meaning Intervals.icu zones that are send as exact power targets to the watch.

The workouts you send to Intervals.icu should work, too - without having to bother with Stryd zones:

I did the same workout yesterday using my Suunto Race S and used the power targets without a problem.

I haven’t tested it, but if I’d sync Intervals.icu and Garmin, the same workout should probably work with Garmin/Stryd, too.

BUT: I’m not sure if Garmin could deal with a) different targets (power + heart rate) in the same file and b) mixing time and distance as a target.

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Stryd Power doesn’t appear as native power on Garmin devices. Hence why you have the Stryd IQ data fields which talk directly the the pods over ant+. Likely why the Garmin workout player won’t work too well as it can’t see Stryd Power.

The Stryd IQ datafield will be pulling the current workout step information from the Garmin IQ API. Getting the Stryd power over ant+. Periodically pulling the zones down from Stryd web servers. Then combining all three for its displays.

The following Garmin workout step information can be retrieved by an IQ datafield.

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Workout step target types within Garmin IQ which might be of use?

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From what I’ve read on the Stryd website they push their workouts to Garmin. Just like Athletica.

Thus the Stryd data field must just be pulling the workout data through the IQ workout step api, the data available through that I’ve posted above.

I think it’s just a case of knowing how to appropriately push the data to Garmin for run power. Then the Stryd data field could show the Athletica workout step power targets.

A temporary datafield could be created to log what the IQ API sees of the Stryd sent workout steps and what target type is being set for the workouts. Assuming it can’t be worked out via other methods.

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