Predicting Total Body Fat from Skinfold Thicknesses
Four skinfold thicknesses are conventionally meas
- Figure 4.5 Standard body mass index curves from birth to 20 years for boys (a, above) and girls (b, opposite). Copyright © Child Growth Foundation. Reproduced by permission. Copies of the CGF BMI charts are available from Harlow Printing, Maxwell Street, South Shileds NE33 4PU, UK
ured (Figure 4.3), using calipers at biceps, triceps, subscapular and suprailiac, and the sum of all four skinfolds (equation 1), or just the triceps skinfold (equation 2), with subjects' age, are used in linear multiple regression to predict total body fat. The original equations for use in adults (2) have been cross-validated in a separate sample and found to be robust in adults aged 20-60 years (6), but tend to underestimate substantially the total fat in the elderly, particularly women (6,22) (Figure 4.6).
Body fat % (men) = [30.9 x log10 ^skinfolds (mm)] + [0.271 x Age (years)] - 39.9 (1)
Body fat % (women) = [30.8 x log10 ^skinfolds (mm)] + [0.274 x Age (years)] - 31.7
Body fat % (men) = (1.31 x Triceps) + (0.430 x Age) - 9.2 (2)
Body fat % (women) = (0.944 x Triceps) + (0.279 x Age) + 4.6
Was this article helpful?
Losing Weight Natures Way
Feel Healthier And Look Better Without Resorting To Drugs! Would you like to get your hands on a this report that can teach you everything you need to know about losing weight naturally?
Post a comment