4-folds by Forsyth-Sinning for Males

4-folds by Forsyth-Sinning for Males is a bodyfat calculation based on 4-folds by Forsyth-Sinning formula. All skinfold measurements should be made on the right side of the body in mm using a body fat caliper. Body fat caliper should be placed 1 cm away from thumb and finger,perpendicular to skinfold,and halfway between crest and base of fold. Pinch should be maintained with the body fat caliper for 1 to 2 seconds before reading the caliper. Take duplicate measurements at each site,allow time for skin to regain normal texture and thickness.

  • Measured on a vertical fold at the point of intersection from axilla and nipple.
  • Measured on a vertical fold at mid of the upper arms backside.
  • Measured on a diagonal fold on the back,at the lower edge of the scapula. Angle of inclination should be 45,clockwise.
  • Sources

    H.L. Forsyth,W. E. Sinning. "The anthropometric estimation of body density and lean body weight of male athletes." Medicine and Science in Sports. 5(3):174-180,1973.