View Full Version : Cadence Calcualtion

08-10-2012, 06:14 AM
I am using the 210 on a tread mill. I'm wondering how the distance is calculated. Distance in GC is close to the treadmill number but I can't find any place where stride is entered.

08-10-2012, 08:29 AM
The GSC-10 has an accelerometer. If you can recall your freshman physics, acceleration is the second derivative of distance, so integrating acceleration twice gives distance. Add a bunch of processing, and you can calculate distance fairly accurately.

08-10-2012, 11:09 AM
Thanks, that was very helpful, except for the painful calculus memories.

09-21-2012, 03:04 PM

I am wondering how my pace decrease over time, as recorded by the Garmin, while on the TM at a constant speed. See attached. That's a decrease of 1 minute per mile over 2.5 miles.



Also, Using my Garmin 210 on the tread mill I don't get very good correlation for distance between the foot pod and the TM mileage. That's no a big deal to me, as soon as I get past pulling calf muscles on a regular basis, I'm going to take it out on a track to see which is correct. The difference is about 10%. Do you think that is to be expected?