Skinfold Measurement Sites

Biceps (site 1) The anterior surface of the biceps midway between the anterior auxiliary fold and the antecubital fossa.

Triceps (site 2) A Vertical fold on the posterior midline of the upper arm, over the triceps muscle, halfway between the acrosion process (bony process on top of the shoulder) and olecranon process (bony process on elbow). The elbow should be extended and the arm relaxed.

Subscapular (site 3) The fold is taken on the diagonal line coming from the vertebral border to between 1 and 2 cm from the inferior angle of the scapulae. (A diagonal fold about 1 to 2 cm below the point of the shoulder blade and 1 - 2 cm toward the arm.)

Super/Illiac Crest (site 4) A diagonal fold above the crest of the ilium at the spot where an imaginary line would come down from the anterior auxiliary line just above the hip bone and 2 - 3 cm forward.