Wednesday, I went to the Lakeshore Foundation here in Birmingham, Alabama, and found out my body fat percentage and weight numbers. They used a fancy machine, called a Bod Pod for the testing.
The Bod Pod (in the picture below) uses air displacement to measure lean body mass and fat mass.
I had to remove all of my clothing except for unpadded bicycle shorts and a swimmer’s cap. The first thing they had me do was step up on the scale. My weight was 366 lbs. Then they had me sit in the bod pod. After running the test, which only took a couple of minutes, they do one final test in which I breathed into a tube. They wanted to find out how much air was in my lungs.
Anyway, here are the results of my tests. There were two tests. They calculated my body fat % using two different models, the Brozek model and the Siri model. Links are provided at the bottom of this post for further explanations about the bod pod, body composition, and the Brozek and Siri models.
My height is 69 inches (5′ 9″)
Brozek model results:
Density: 0.998 kg/l
Percent Fat: 43.6 %
Percent Lean: 56.4%
Fat Weight: 159.7 lbs
Lean Weight: 206.4 lbs
Total Weight: 366.1 lbs
Siri model results:
Density: 0.997 kg/l
Percent Fat: 46.4%
Percent Lean: 53.6%
Fat Weight: 169.8 lbs
Lean Weight: 196.2 lbs
Total Weight: 366.0 lbs
What did I learn from this test?
I don’t know why, but I had this internal perception that my body was one gigantic blob of fat. This test helped me to see that there is a significant amount of bone, muscle, organs, and water included in my body weight. I believe this test will be most beneficial when I get tested again. I’ll be able to see if I’m losing majority body fat or if I’m losing muscle mass. My goal, of course, is to increase muscle mass and lose fat. I’m also interested in seeing my results after I have skin reduction surgery (which will happen later in my journey).
At this moment, I’m healthy and I’ve got all green lights to train for the Mercedes Half Marathon that is on Sunday, February 12th, 2012. My plan is to go back for another bod pod test in 3 months if I follow my training and nutrition plans for the Half Marathon. I’m thinking if I accomplish 80-90% of my plans and lose a significant amount of weight (30+ lbs), I’ll do the test in 3 mos. If I get injured and am not able to train hard (my nutrition will still be good), I’ll go back for another test in 6 months. (6 months was the recommended duration between tests.) I think it would be interesting to see how much of an effect the working out will have on my muscle mass. Also, it’ll be interesting to see how effective my regiment is at reducing fat on my body.
Here is more info about the Bod Pod: I like the video on this page: http://www.dakotabody.com/why-bod-pod.php They say that the Bod Pods are used at the NFL combines, by NFL teams, and also by a lot of college football teams. Here’s a video on the entire test procedure: http://www.youtube.com/watch?v=FoGHJAj32W4 Here is info on the Siri and Brozek models: http://www.topendsports.com/testing/siri-equation.htm