Wow, thanks for telling me that ... I need the DEXA scan as a baseline because I have a lot of risk factors for osteoporosis and I just assumed I'd get the body fat % along with it because other people had.

Lots of the impedance ones can be affected by water weight, time of the month, etc. too. I used to just use an impedance scale once a month, I followed the same diet/exercise plan for 3 days before measuring myself (so that food/sweat etc were not an issue).

And yes, I did see the numbers go down, but it was relative to what the original estimate was.

There are some places online that you can check too

http://www.healthstatus.com/calculate/bfb
(I think this was one I tried a few months ago-I think it might overestimate)

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I have just finished my first tri- IMC '09!

DEXA is fabulous...but the only problem is that once you go DEXA you will never want to go back...

...oh that and it also told me I was 10% fatter than any of the other machines!!

The University of Texas has one that you can pay ~$90 for testing, but that is in Austin and I am in Houston. I have done it twice in the past 5 years though. I would do it much more often if it were closer.

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Kathleen
http://kcwoodhead.blogspot.com/