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Indoor walking speed fluctuations with latest firmware

SylvainGa
3 months ago

Hi, since the last update, when I walk on my treadmill, according to my watch (7S Pro), my speed varies greatly, but my treadmill speed is constant and my arms swings normally. Steps are all being accounted for. I do choose an indoor walk activity so it ain't a GPS issue. My treadmill speed was set at 3 mph (4.8 km/h). Of course, the recorded distance is also being miscalculated. Wearing my Garmin foot pod makes no difference.

The screenshot below shows my treadmill walk activity from yesterday.

Notice all the speed dips. Below is an activity from before the update. Look how constant the speed was.


There is a similar thread about distance being wrong but it's with a GPS activity, mine isn't so not sure if it's relates or not. Anyone seeing something like this?

  • 0 3 months ago

    No one? It consistently does that now. Did it again today. Rebooting didn't help. As the last screenshot shows, the speed used to be pretty accurate until the latest update :-(

  • 0 3 months ago in reply to SylvainGa

    I'm used to walking 5km for reaching my office and I don't see the problem. I'm sorry

  • 0 3 months ago in reply to megaphylls

    I'm pretty sure you don't walk on treadmill to reach your office. Outside walking with GPS is fine. It's indoor walking where steps are used to calculate distance/speed that is the problem.

  • 0 3 months ago in reply to SylvainGa

    I see similar gaps in my indoor walks when the cadence drops below ~95 spm. Could you open the cadence chart in the full-screen mode, add the pace as an overlay, and post it here? Also try recording another indoor walk activity with a higher cadence (not necessarily with higher pace, just shorter stride), to see whether the cadence is the culprit. If so, the information may help Garmin to quicker localize the bug and fix it, once you report it to the Support, and send them the data.

  • 0 3 months ago in reply to SylvainGa

    Grinning you’re right I totally ignored the indoor word. sorry man!

  • 0 3 months ago in reply to trux

    My cadence drops to zero, however, IIRC, my steps are still being recorded during that time.

    It's in French so Allure is Pace.

    It's raining today again so I'll probably do more steps on the treadmill. I'll pay a closer attention to the steps as my speed drops to zero.

  • 0 3 months ago in reply to SylvainGa
    SylvainGa said:
    My cadence drops to zero, however, IIRC, my steps are still being recorded during that time.

    Yes, it is the same in my case too (though I am using Instinct 3). Once the cadence goes under 95, the chart stops showing it (despite that the steps continue to increment), and the pace drops to zero (resp. to 1 hr/km), just like in your case. It looks like there is the threshold of 95 spm (may perhaps differ from model to model) at indoor walk, under which the watch considers you do not walk anymore. Hard to tell whether it is a bug or an intentional feature. Garmin will probably claim the later, although it does not make much sense (at least not with the threshold so high).

  • 0 3 months ago in reply to trux

    It would make sense if the cadence drops to a certain threshold like you say but in my case, my treadmill speed is very constant and my pace doesn't really change. Nonetheless, I'll increase the treadmill speed today to 3.5 mph which should also increase my cadence. I'll see if it makes a difference. Thanks.

  • 0 3 months ago

    I saw something similar on a treadmill walk.  I was wondering if it was when i checked my watch. In other words, flicking my wrist to see it, thereby stopping the swinging of my arm.

    I have a question, you said you have a sensor (foot pod). Are you wearing chest strap too?

    If so, do you have Source Switching on or off?

    I ask, because after I only saw this behavior once. The next treadmill walk didn't show this behavior. I think the only thing different was that I re-enabled Source Switching, but I'm not totally sure.

  • 0 3 months ago in reply to JasonPursell

    I look at the watch as I make my arm movements and often it's already at 0 mph when I look. The step counts do increase as it should so it's not because steps aren't counted.

    Yes, I have a chest strap but I don't wear it for walk activities. What is "Source Switching"?

    Edit: Just read about "Source Switching". I've turned it off. My strap is pretty accurate and don't want to waste my small 7S battery with the HR sensor going when not needed.

    So I tried a short treadmill running activity. The speed never dipped, so it's just the indoor walking activity that is problematic.