Ah, ok...ELG II. That is a great machine for general health applications in a "normal or average" body fat % range as Linda noted.
However, for those of us who desire to make frequent adjustments to achieve our goals effectively, we need something with a consistent feedback over a wide range.
I have tried many methods with many clients and quite simply, calipers (raw caliper measurements) provide the best raw data. But remember,
it is better as a tool for tracking over time.
Raw numbers are best in my opinion. But using calculations is also nice for tracking change over time.
You can see how I used the numbers to modify my diet and training over a 1 year period to Gain 30 pounds of muscle and drop 5 pounds of fat while bulking... Just look at this table of progress:
http://www.discussbodybuilding.com/fb.ashx?m=170774 Hopefully you can see the chart I am attaching here as well, which shows the % bodyfat changes over that year. My goal was to gain mass and my training was cyclic, which is represented in the cycles of changes in my %BF. I was using the calipers to track lean mass changes. Any time I started to gain unwanted fat, I made modifications to training and diet.
<message edited by danmirage on Friday, November 21, 2008 4:28 PM>