1. What is the Jackson Pollock 3-Site Formula?

The Jackson Pollock 3-site formula is a method for estimating body fat percentage using skinfold measurements from three specific sites on the body. It provides a practical and relatively accurate assessment of body composition without requiring expensive equipment.

2. How Does the Calculator Work?

The calculator uses the Jackson Pollock 3-site formula:

Where:

• \( Sum Skinfolds \) — Sum of skinfold measurements from three sites (mm)
• \( Age \) — Age in years

Explanation: The equation accounts for the relationship between subcutaneous fat, age, and overall body fat percentage.

3. Importance of Body Fat Measurement

Details: Accurate body fat measurement is important for assessing health risks, tracking fitness progress, and developing appropriate nutrition and exercise plans.

4. Using the Calculator

Tips: Enter the sum of three skinfold measurements in millimeters and age in years. All values must be valid (sum skinfolds > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: Which three sites are measured?
A: For men: chest, abdomen, thigh. For women: triceps, suprailiac, thigh.

Q2: How accurate is this method?
A: When performed by a trained professional, skinfold measurements can provide estimates within 3-5% of more advanced methods like DEXA scans.

Q3: What are healthy body fat percentages?
A: For men: 6-24%; For women: 16-30%. These ranges vary based on age and fitness level.

Q4: When should measurements be taken?
A: Ideally in the morning before eating or exercising, and consistently at the same time of day for tracking purposes.

Q5: Are there limitations to this method?
A: Less accurate for extremely obese individuals, elderly populations, and those with significant loose skin from weight loss.