Hi,
I have a power imbalance, roughly 54/46 - my right leg is currently producing 15% less power than my left. I am working on this with exercises and monitoring power balance in realtime.
When completing an indoor TrainerRoad workout it is synced with TrainingPeaks, however, the Power Balance data is not retained and shown in TrainingPeaks as per my outdoor rides.
I am connecting my pedals to the TrainerRoad app for the workout and using the power match feature.
I record the indoor rides on my Garmin to get the pedaling dynamic stats, but only to look at. I don’t worry about trying to change anything based on the numbers, just satisfying my curiosity.
Hey @thomas1!
Have you tried simultaneously recording your Workout on your Garmin head unit and viewing the Left/ Right power in Garmin Connect?
** A note on that: Save your record of the Workout that you recorded in the TrainerRoad app first. Once it has been uploaded to your TrainerRoad App, then you can save the workout on your head unit.
I don’t think TrainerRoad saves the L/R balance data in the .fit file so it wouldnt get sent to TrainingPeaks - if you want that data in TrainingPeaks I believe you would have to dual record on your bike computer or watch.
Yup, that is what I’ve always understood as well. I think there’s even an open Feature Request to get the LR data included in the TR file.
Found it.
I do something similar to Sarah in that I run my garmin while doing an indoor TR workout so I can see current (10s) and overall LR balance as data fields. Slight difference is that I don’t bother saving the garmin workout as I’ve set TR to update Garmin connect.
A tip try rollers. I just bought some and for the first time ever my l/r balance is almost a perfect 50/50 (having even been as bad as 38/62 at times in the past but more like 45/55 in recent months)
Yes, I usually record on my Wahoo Bolt too so I can easily view the L/R balance in real-time.
I also record on my Garmin Forerunner 955 but more for Garmin specific health metrics.
Both the Wahoo Bolt and Garmin will upload and share the L/R Balance with TrainingPeaks, however, when completing a structured indoor session having the intervals from the TrainerRoad app is more insightful, especially when correlating with L/R Balance.
My Balance is much closer at Z2 (51/49) but at Z4/5 the discrepancy grows (55/45)
I was just hoping to simplify what I sync to TrainingPeaks 
Thanks @mcneese.chad
Seems to be a mixed opinion on the usefulness of L/R balance metrics.
One thing you could try to see if you like it is run the TrainerRoad intervals from your garmin.
You can push the intervals to your garmin as an “outside ride” but then ride it indoors with the garmin cantroling your trainer rather than use an app.
Then you would get the interval data as well as the L/R and cycling dynamics data in one file.
I have done that quite a few times and it works OK but its not as good a user experience as using the TrainerRoad app to run the intervals. You get ERG mode and powermatch but no pretty blue graphs or intruction text.
If I want the Garmin data I dual record using my watch now.
Simultaneous recording is a mess. Why not simply record all the data you receive instead?
Not arguing with you, but AFAIK this is only possible if you choose to ride the outdoor version of the workout, which might be quite different.
It is in some but not all cases. The deltas should be more about practically of riding outside and not different enough to remove the benefits of the workout overall.
The bigger reason NOT to do the suggestion above right now is the lack of visible PL changes to the TR rider profile. Sounds like they are now leveraging some portion of PL increase for outside rides (non-TR app) behind the scenes, but it may still be a while before that whole system is open and clear at our level.
I understand that it sounds like an easy change to make on the surface. Unfortunately though, it is not as simple. It would be a significant undertaking for the team and would interfere with progress on higher priority tasks.
Aaaah gotcha, I understand. As I mentioned above, this is surprisingly not a simple undertaking. If we were to dedicate resources to this, it would distract from the progress we are making on other exciting features that we think will have a bigger impact on making more people faster.
Appreciate your understanding 
Maybe I don’t understand the technical ins and outs, but I figured it’d just be a matter of saving the entire fit file without filtering out information.
Blockquote
As I mentioned above, this is surprisingly not a simple undertaking.
Hi @SarahLaverty - I think I missed the mention of the challenges involved 
I’m guessing this is due to the difference between how Strava/Garmin share files and the respective fields?
That said, I completely understand the need to prioritise other areas of TrainerRoad 
There are two different issues potentially:
Lastly, and it applies to both, TR would need to make any changes to the backend infrastructure if it is currently modifying the FIT file to drop left / right / cycling dynamics. If so, then this is another area of lots and lots of work
I was also thinking that they should simply strip less fields and keep all data fields that are available. This would also be very useful for the future in case one or more metrics turn out to be important.
Ditto for the lack of integration into Apple Health, TR has no hook into getting e. g. sleep data. Just sleep data alone is probably the most important factor in whether I’ll be able to handle a certain workload or buckle under the pressure.
This is generally my understanding too, @AlphaDogCycling. Thanks for sharing.
We don’t log the Left/Right balance for any power meters. I don’t think we necessarily strip these out but the Left/Right balance data is not recorded in our backend logs.
@AlphaDogCycling @SarahLaverty
ANT+ vs BLE
This makes sense. I always use my iPhone for indoor rides, so am using BLE.
If recording L/R dynamics (not showing them) is a challenge with BLE I can appreciate leaving this out across the board for consistency.