SW 3.00 with Dexa Scan result and wrong Skeletal Muscle Mass and Bone Mass !

2 days later Body Fat jumps from 15,5% to 17%, i think there is something totally wrong on FW 3.00!

There's always been something wrong. On 3.00 it's a little less wrong (unless you are one of the unfortunate ones with a bricked S2 like me. Then, of course, everything's wrong).

Hi! I looked carefully at my Dexa data and read about Dexa and it seems that the "lean mass" measured by Dexa is a totally different thing than the "skeletal muscle mass" of Garmin. Dexa "lean tissue" includes everything, internal organs, connective tissues, etc... basically, everything that is not fat or bones. Garmin skeletal muscle mass is only muscles, so they are very different and it is normal that Dexa lean tissue is much higher than Garmin skeletal muscle mass. So my suggestion is to only insert the body fat percentage in the calibration data and leave the muscle mass field empty. Right now you put a number that is so high that the model is confused...

Actually, this should be a standardized procedure, so apples are apples, right?

But thanks, I'll leave out the muscle mass field and see what happens

Yes! Unfortunately, DEXA and BIA (what Garmin and all scales use) technologies measure different things, apart from body fat, so DEXA Lean Mass and Garmin Skeletal Muscle Mass are indeed apples and oranges. Also, the bone measurements could have slightly different meanings. Dexa measures BMC, Bone Mineral Content. The person that administered my DEXA scan told me that BMC doesn't represent the entire bone mass, but we didn't get into the details.