Analysis of the test result is by comparing it with the athlete's previous results for this test and recommend body fat levels. This test is suitable for everyone but not for individuals where the test would be contraindicated. Test reliability refers to the degree to which a test is consistent and stable in measuring what it is intended to measure.
Reliability will depend upon how strict the test is conducted.
Yuhasz Skinfold Test
The following link provides a variety of factors that may influence the results and therefore the test reliability. Test validity refers to the degree to which the test measures what it claims to measure and the extent to which inferences, conclusions, and decisions based on test scores are appropriate and meaningful.
This test provides a means to monitor the effect of training on the athlete's physical development. The test is not a good predictor of the percentage of body fat; however, it can be used to indicate changes in body composition over time. The assistant takes the measurements, in millimetres, on the right side of the athlete's body The assistant picks up the skinfold between the thumb and the index finger to include two thicknesses of the athlete's skin and subcutaneous fat The assistant locates the callipers about one centimetre from the fingers and at a depth equal to the thickness of the fold The assistant repeats each measurement three times and records the average value The assistant records the sum of the four measurements and uses this value to assess the athlete's percentage of body fat.
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Journal of Behaviour Therapy and Experimental Psychiatry , 8 1 , p. Research Quarterly. Yuhasz Skinfold Test Measuring body fat percentage is an easy method of discovering correct body weight and composition. Objective The objective of this test is to monitor the athlete's level of body fat. Required Resources To undertake this test, you will require: Skinfold callipers Assistant.
Triceps The assistant takes a vertical fold midway between the shoulder and the elbow on the back of the arm. Subscapular The assistant takes a diagonal fold across the back, just below the shoulder blade.
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Suprailiac The assistant takes a diagonal fold just above the hip bone. Abdomen The assistant takes a vertical fold midway between the athlete's side and the navel. Front Thigh The athlete places their right foot on a six-inch step. There are over equations used to calculate body fat percentage from a pinch test. Each is specific to groups of people according to characteristics such as age, gender, race, and fitness level, which affect where bodies tend to store adipose fat. Plugging in the same data to several different equations can return results that vary by several percentage points.
To choose a formula that makes sense for you, work with a fitness professional and use it as a benchmark of your progress. Or, forgo the formula completely and just keep track of the skinfold measurements. Track your progress. At the start of a fitness regimen to reduce your body fat percentage, it is useful to get a baseline measurement.
Keep this information in a log personal training journals and fitness apps are good options along with your exercise routine e. Recommended ranges for a healthy percentage of body fat differ according to gender, age, and fitness level.
If you want to maintain your current body fat composition, monthly measurements may be more useful. There are many types of calipers available on the consumer market. Ideally, an experienced examiner is administering the pinch test for you and has good-quality calipers.
If you are administering the test yourself, you can purchase calipers at many different price points from a few dollars to a couple hundred and from many different retailers. You may want to invest in high-quality calipers, which will be more expensive. Cheap calipers may not exert the appropriate amount of constant pressure necessary to provide adequate tension control and reliable results.
Choose a test.
Pinch tests measure skinfolds at three, four, seven, and even ten points on the body. Taking measurements from more points does not ensure accuracy of the body fat percentage calculation. That depends on the precision used when taking the measurements and the formula used to calculate body fat. Identify the points at which you'll take measurements.
The key is to be consistent with the exact locations as well as pinch-type vertical vs. In general, the right side of the body on a standing subject is used when obtaining measurements. Common areas to measure skinfolds include:  Triceps — Have the subject bend the elbow to 90 degrees and mark the point midway between the top of the shoulder and elbow. Iliac crest — Have the subject hold their right arm across the body. Use a horizontal pinch to take this measurement right above the hip bone on the side of the body.
Calf — With the foot resting on a chair or platform at approximately 90 degrees, take the measurement as a vertical fold on the inside of the calf at the point with the largest circumference. A measurement here should be taken as a vertical fold directly under the center of the armpit and perpendicular to the nipple. Supraspinale — A measurement of the supraspinale area should be a diagonal fold at the intersection of a vertical line between the spinal front part of iliac crest, the protrusion of the hip bone and front part of the armpit and a horizontal line at the top of the iliac crest.
Pinch a fold of skin and pull. Making a "C" with your left thumb and index finger, grab as big of a skinfold as you can until it hurts, then pull outwards. It is important that you do not exclude any "pinchable" skin nor include any underlying muscle.
Most Common Methods of Body Fat Assessment
Hold the pair of calipers using your right hand with the thumb on the upper arm and index finger on the lower arm. Place the jaw ends over the skinfold while continuing to pinch the skinfold with your left hand. Using your right thumb, press down where indicated on the caliper until you feel a slight click. This sound represents the correct measurement as the caliper jaws automatically stop at the width of your skinfold. If the measurements differ they should only differ by 1 — 2 mm  , obtain and record the average of the three measurements.
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Be sure to measure the center of the skinfold between your fingers. Record measurements on paper. Be sure to record the average of all three measurements in an organized fashion to avoid confusion during calculation. Its best to use a notebook and save all measurements as a log so you may compare them as time goes on. Enter the average measurements for each point into the formula you're using.
Body Fat Percentage
After calculating your result, record it in your fitness journal or app. Include your email address to get a message when this question is answered. Already answered Not a question Bad question Other. Tips Never use calipers immediately after an exercise session.
It takes time and experience to become competent at using calipers to calculate body fat percentage. Monitor and measure body fat solely through skinfold measurements as opposed to calculating body fat percentage — it's much more reliable.
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