Body Fat Percentage

The Durnin-Womersly formula requires caliper measurements (in millimeters) at four sites on the body. To promote consistency when measuring skin folds, take all measurements on the right side of the body. The four measurement locations are: 1. A vertical fold of skin on the anterior side of the biceps, halfway between the elbow and shoulder 2. A vertical fold of skin on the posterior side of the triceps, halfway between the elbow and shoulder 3. An angled fold of skin (about 45 degrees) at the subscapula, about two centimeters below the inner angle of the scapula 4. An angled fold of skin (of about 45 degrees) just above the iliac crest and in line with the apex of the armpit. The Durnin-Womersly chart or formula provides the client’s body fat percentage based on the sum of the four caliper measurements, the client’s age, and the client’s gender.

Today we’re going to talk about how to find percentage body fat. And this is done using calipers and millimeters, measuring pinches of skin folds at four different areas. It begins with a vertical pinch of skin on top of the bicep about halfway between the elbow and the shoulder. The second place then is on the tricep, on the back of the arm, a vertical pinch or fold of skin, once again about halfway between shoulder and the elbow. Those two are measured in millimeters. And then you go to the person’s back about 2 centimeters below their scapula, their shoulder blade, and there you’re going to pinch a fold of skin at a 45 degree angle and measure that. And then finally the last place you’re going to go is the iliac crest or basically the pelvis at the top just above that at a 45 degree angle with the top of that 45 degree angle going towards the person’s armpit. Once you have the measurements then from each of these four places, vertical pinch of the bicep, vertical pinch of the tricep, 45 degree at the subscapular and 45 degree just above the iliac crest, you take those four measurements together and you put them in the proper formula, and that will church out for you the percentage body fat. This particular method works well for those between the ages of 17 and about 65.


Provided by: Mometrix Test Preparation

Last updated: 12/29/2017
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