This section is for the SKYNDEX SYSTEM I programed with the Durnin formula. The Durnin is named after the authors of the original research study. Each formula was developed from the results of underwater weighing and skinfold data taken from several hundred individuals over a wide range of age, body structure, body composition and exercise habits. Specifically, the formulas are (BD=Body Density):
Where SF = Sum of Biceps, Triceps, Subscapular and Iliac Crest skinfold thicknesses in mm.
The body fat % is calculated from: % Body Fat = 495/BD – 450