Parrillo 9-Site Method
PRO+A comprehensive skinfold measurement method developed specifically for bodybuilding applications, designed to track changes in trained individuals.
Method Overview
Developed by John Parrillo specifically for bodybuilding applications. Uses nine skinfold sites to account for various fat distribution patterns.
- Accuracy: ±3-4% when performed correctly
- Most comprehensive skinfold method
- Useful for trained individuals
- Best for bodybuilding-focused tracking
Measurement Protocol
Measurement Sites
- Chest
- Abdomen
- Thigh
- Bicep
- Triceps
- Subscapular (below shoulder blade)
- Suprailiac (above hip bone)
- Lower back
- Calf
Measurement Tips:
- Take measurements in a rotational sequence to allow skin to return to normal
- Use high-quality calipers for consistent readings
- Ensure proper site identification for accuracy
- Take measurements on the right side of the body
- Wait briefly after applying the caliper before reading