Body Composition Test

[tiramisu]

I noticed that the U of Manitoba has provides a test for $38. Are they still using the dunk tank?

I'm seriously considering booking an appointment at the end of my diet this spring to get an accurate reading on my BF.

[Winnipeg Muscle]

I did the dunk tank test about 10 years ago at the U of M, its a good process and accurate, they also used calipers to compliment the tank readings, not sure if they still use the tank but would assume so? I had a hard time expelling all the air and then staying submerged, kind of scary actually.

[rickyboy36]

I did the dunk tank test about 10 years ago at the U of M, its a good process and accurate, they also used calipers to compliment the tank readings, not sure if they still use the tank but would assume so? I had a hard time expelling all the air and then staying submerged, kind of scary actually.

Im curious as to how this works.Does it matter if you have eaten before..or need to take a piss?I mean do they take into consideration all the liquid and food and waste you have inside your body?How accurate is this exactly?

[Winnipeg Muscle]

Im curious as to how this works.Does it matter if you have eaten before..or need to take a piss?I mean do they take into consideration all the liquid and food and waste you have inside your body?How accurate is this exactly?

Its called Hydrostatic Testing

Bone, muscle, and connective tissue collectively known as lean mass sinks, while body fat floats is the main principle behind (hydro-densitometry) hydrostatic testing. By obtaining your land weight and water weight (based on buoyancy), a computer program can scientifically calculate your body fat as a percentage of your total weight.

Clinically speaking, the hydrostatic testing method has been around for over 50 years and is based on Archimedes principle which states "that when a body is submerged in water, there is a buoyant counter force equal to the weight of the water which is displaced". Again, because bone and muscle are denser than water, a person with a larger percentage of lean body mass will weigh more in the water and ultimately have a lower body fat percentage versus someone with less lean muscle mass. A person with more body fat will be lighter in water. Body fat floats and lean tissue, muscle, connective tissue, bones, etc.

However I am not sure if anyone does this testing anymore, I have read that a more reliable method used nowadays in electrical impedance test...anyway to be honest I think the body fat number itself is overrated, it all comes down to what you look like in the mirror, not sure why the number is so important to people.

[tiramisu]

The U of M doesn't have the dunk tank anymore :(. They are using a combination of BIA and Calipers. Hydrostatic Testing is the gold standard so to speak although DeXA may be more accurate. BIA is less accurate than Hydro or DeXA.

[gregdoucette]

Ive tested people using the hydrostatic method. It is very accurate if the person does what they are suposed to. Some people wer too nervous to blow out every last bit of air. Ur not suposed to like get all full of full and eat gassy products. The formulla used takes into consideration some of this. I tested myself at 7.5% on that test a few weeks out from a show many years ago and it was at 8% using skin fold calipers. I recomend u do the test and jsut eat normal and whatnot.

[Kaly11]

at the U of W we have one, im actually doing caliper testing tomorrow and a few weeks down the road were doing hydrostatic weighing..