I’m using Garmin for outside and indoor tennis activities. Load for indoor activities has been in line with other activity types in my opinion based on personal feel/rpe. The problem is that for some reason Intervals gives a lot lower load for outside activities. Of course a workaround is to always use indoor profile on my Garmin watch.
The other weird thing is tennis activity duration, which I can’t make sense of. Intervals seem to report somewhere between 20 to 55 minutes of activity duration for a 2 hour training session. On one occasion out 37 activities Intervals gave it the full 2 hours duration. I think Intervals shouldn’t reduce the duration so that totals chart would be correct.
I have no experience with tennis but I guess the best load estimation will be based on HR. Then you don´t need distance/moving speed. So you better deactivate GPS for all tennis activities.
What happens now is that Intervals sees a lot of ´not moving´ time and that´s why the activity comes out with less time.
On Indoor tennis, GPS is deactivated and there are no pauses.
On those Outdoor tennis activities, go to bottom of page Actions, Ignore pace/speed and time and load will be similar to the Indoor ones.
Ignoring velocity data actually fixed both load and duration. Thank you.
What would be the best way to get Intervals to always ignore velocity data automatically on tennis activities? I don’t think it’s currently possible or is it? I think it should be default for everybody on tennis. Another option would be to switch it always off in settings if there was such an option.
To be more clear, ignoring velocity data also fixes duration for indoor tennis but does nothing to load, which was of course expected.
You should be able to set GPS off in your recording profile on your device.
Anything called indoor will already have GPS disabled but if you create a general ´Tennis´ profile with GPS disabled, you can use that for both Indoor and Outdoor.
And where would that moving/velocity data come from?
Do you have a recording device or HR monitor with accelerometer?
Normaly, speed and or distance only comes from GPS or Bike wheel sensor, but there are some advanced chest straps with accelerometer.
Maybe I should’ve told you before that I don’t use a strap for tennis but only my Fenix 6 pro and it’s optical HR sensor. It of course has an accelerometer. There is no setting for switching it on or off for the activity.
There doesn’t seem to be an auto pause for Garmin tennis activity profile. If pausing was the issue then the original .fit file would have a shorter duration to begin with. This is all to do with how Intervals analyzes the file. I checked if Garmin’s reported moving time was the same as Interval’s truncated activity duration but even there was a big difference.
Yes, because Intervals uses the distance/pace/speed stream to evaluate if you’re moving or not. There is a threshold to consider what is moving time or not.
Your watch is recording a distance track based on the accelerometer and thus has a pace/distance track even for indoor activities. If this is in any way accurate for a sport like tennis is another question, but some searching around confirms that you can’t deactivate the accelerometer unfortunately. If you have the watch on your dominant playing side, that stream could be very different compared to having it on your other arm…
At this time, the only solution is to manualy Ignore velocity for every tennis activity I’m affraid. @david may have a look to see if this specific situation could be handled automatically.
