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Jackson & Pollock 4-Site Method

PRO

A balanced approach between accuracy and practicality, using four skinfold sites. Offers excellent reliability while being more time-efficient than the 7-site method.

Method Overview

The 4-site method provides a practical compromise between the comprehensive 7-site protocol and the quicker 3-site version. It maintains high accuracy while reducing measurement time, making it ideal for regular tracking.

  • Accuracy: ±3.5-4.5% compared to hydrostatic weighing
  • Validated across diverse populations
  • Gender-specific equations
  • Excellent for tracking changes
  • Good balance of time and precision

Measurement Protocol

Measurement Sites

For Men:

  • Chest
  • Abdomen
  • Thigh
  • Triceps

For Women:

  • Triceps
  • Suprailiac
  • Abdomen
  • Thigh
Measurement Tips:
  • Take measurements on the right side
  • Pinch skin and fat only, not muscle
  • Hold caliper perpendicular to skinfold
  • Read after 2-second compression
  • Take 2-3 measurements at each site

Research & Validation

View Research Studies

Access detailed validation studies, accuracy assessments, and comparative analyses.