3-folds by Lohman for Males is a bodyfat calculation based on 3-folds by Lohman 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.
T. G. Lohman. "Skinfolds and body density and their relation to body fatness:a review." Human Biololgie. 53(2):181-225,1981.