Skinfold measurements are taken with calipers to determine body fat percentage. Consistency is key, with measurements taken at the same locations and in the same manner each time. Pinching should be firm but not uncomfortable, and multiple measurements are taken for each site. Calculations vary depending on the protocol used, but software can simplify the process. When performed correctly, skinfold measurements can be up to 98% accurate.
A skinfold measurement is a pinch test taken with a pair of forceps. The skin is pinched in specific areas around the body, and the thickness is measured with calipers. These measurements are used to determine the percentage of body fat present. To take a skinfold measurement, you will need to have calipers, know the locations to take the measurements, and know the correct way to take them.
Consistency is required to accurately compare measurements and mark progress. To achieve this, the skinfold measurement must be taken at the same locations and in the same manner each time. The exact sites vary depending on the protocol used, but traditionally seven locations are measured on the right side of the body. Typical skinfold measurement locations include the triceps, biceps, chest, thigh, calf, abdomen, below the shoulder blade, and above the hipbone.
Most people cannot reach all of these places comfortably, and assistance may be required. If possible, the same person should perform the skinfold measurement each time, to obtain the greatest possible consistency. If assistance is not available, an abbreviated test with three accessible locations may be used. This test won’t be as accurate, but it will allow you to determine your body fat percentage somewhat reliably.
When taking a skinfold measurement, the skin is pinched between the thumb and forefinger. The goal is to pinch hard enough to lift the layer of fat, but not deep enough to pull on the underlying muscle. The pinch should be firm but should not cause discomfort.
Measurements taken with the calipers should be close to pinch, no more than a half inch from the fingers, and halfway up the skin fold. Multiple skinfold measurements, usually three, are taken for each site and then averaged. For best results, it is recommended that instead of taking three consecutive measurements at each location, measurements are taken three times across all sites so that the skin can recover between pinches.
After these measurements are taken, calculations can be made to determine your percentage of body fat. Like skinfold measurement sites, the specific calculations vary depending on the protocol being used, but most include factors such as your age and bone density. The simplest method of calculating body fat without a lot of math is with the use of software designed for this purpose. A quick search online can be used to find a body fat calculator.
Experts agree that skin fold measurement can accurately determine body fat percentages. When performed by a qualified professional, tests can be as high as 98 percent accurate. Factors such as the skill of the tester, the quality of the calibrators, and the individual’s hydration level can affect the results, but even so, when tested consistently under the same conditions, an accurate record of progress can still be made.
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