Calculate body fat percentage using skinfold measurements for accurate and personalized results. Get average, max, min, and standard deviation.

Body Fat from Skinfold Measurements

Purpose

The purpose of this function is to calculate the body fat percentage based on skinfold measurements provided by the user. The function uses different methods to estimate body fat percentage and provides an average, maximum, minimum, and standard deviation of the results.

Use Cases

• Calculate body fat percentage using skinfold measurements
• Compare different methods of estimating body fat percentage

How to Use

1. Enter the required skinfold measurements in millimeters for the following areas:
   • Triceps
   • Biceps
   • Chest
   • Subscapular
   • Abdominal
   • Suprailiac
   • Thigh
   • Axilla
2. Optionally, enter your age and select your gender.
3. Click on the calculate button to get the results.

Input Values

1. Age - Enter your age in years.
2. Gender - Select your gender (Male or Female).
3. Triceps - Skinfold measurement for the triceps.
4. Biceps - Skinfold measurement for the biceps.
5. Chest - Skinfold measurement for the chest.
6. Subscapular - Skinfold measurement for the subscapular area.
7. Abdominal - Skinfold measurement for the abdominal area.
8. Suprailiac - Skinfold measurement for the suprailiac area.
9. Thigh - Skinfold measurement for the thigh.
10. Axilla - Skinfold measurement for the axilla.

Default unit of measurement is millimeters.

Output Values

1. Body Fat Average (%) - The average body fat percentage.
2. Body Fat Max (%) - The maximum body fat percentage.
3. Body Fat Min (%) - The minimum body fat percentage.
4. Standard Deviation - Standard deviation of body fat percentage.
5. Method Count - Number of methods used for calculation.
6. Data Used - List of skinfold measurements used for calculation.

Any other Instruction

• Make sure to enter accurate skinfold measurements for precise results.
• If you want to see detailed information about the methods used, check the "Show Details" option.

Steps of Calculation

1. The function takes the provided skinfold measurements and age to calculate body fat percentage.
2. It uses different methods (Durnin-Womersley, Jackson-Pollock 3-Site, Jackson-Pollock 4-Site, Jackson-Pollock 7-Site) to estimate body fat percentage.
3. The function then calculates the average, maximum, minimum, and standard deviation of the results.

Technical Parameters

age, sex, triceps, biceps, chest, subscapular, abdominal, suprailiac, thigh, axilla, show_details

Return Values

Body Fat Average (%), Body Fat Max (%), Body Fat Min (%), Standard Deviation, Method Count, Data Used

Example Expressions

You can use the following expressions to directly evaluate in a non-interactive manner using eva():

eva(age='30 yr', sex='M', triceps='7 mm', biceps='5 mm', chest='8 mm', subscapular='4 mm', abdominal='6 mm', suprailiac='10 mm', thigh='8 mm', axilla='3 mm')
eva(age='35 yr', sex='F', triceps='6 mm', biceps='4 mm', chest='7 mm', subscapular='3 mm', abdominal='5 mm', suprailiac='9 mm', thigh='7 mm', axilla='2 mm')

Click on Help icon to open the help page on a separate window.