Have you always faced the question of what kind of body frame size you have? Small, large or medium? Frame size or skeletal size index is one of the simple and practical methods to determine your body frame size. These days, most trainers use a quick yet reliable method to determine this variable. Here we have explained this method completely.
Test Requirements
Measuring the body girth (circumference)
How to conduct this test?
To perform this test, it is enough to measure the height and circumference of the wrist carefully. The best time to measure height is in the morning, but there is no special time for wrist measurement. Just make sure that it measures the circumference of the wrist in the lowest part of the forearm (like in the picture above).
Formula
Body Frame Size formula: BFS = height รท wrist circumference
Online calculator
You may simply apply our online calculator for BFS determination.
Analyzing and Assessment
After the measurement is done, put the numbers in the formula and interpret the obtained number based on the table below. Of course, if you have used our online tools, you have also seen the interpretation of the result. By calculating your body frame size, you will be classified into one of the small, medium or large categories. For example, if you are a woman and your calculated number is 8.5, considering that this number is smaller than 10.1, then you have body frame size (BFS).
Note: This calculation cannot be used for treatment recommendations. Radiological imaging tests should be used to accurately determine Body Frame Size (BFS).
| Large Frame | Medium Frame | Small Frame | |
|---|---|---|---|
| Men | <9.6 | 9.6-10.4 | >10.4 |
| Women | <10.1 | 10.1-11 | >11 |
Scientific and Methodological Aspectst
This method is applicable to anyone, but for more accurate determination, advanced tests should be used. The use of this method is common in scientific articles.
Reliability
Reliability would depend upon how strictly the test is conducted.
Validity
The results of this test are highly correlated with the results of radiological tests.
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Referencess
Book. Ultimate Sports Test, Alireza Amani
Alireza Amani, Ph.D. Sports Science.
