Skip to main content

Table 2 Validation of methods of predicting % body fat compared to the 3C model

From: Percent body fat estimations in college men using field and laboratory methods: A three-compartment model approach

  Method % fat ( x ¯ MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGaciGaaiaabeqaaeqabiWaaaGcbaGafmiEaGNbaebaaaa@2D66@ ± SD) Slope Intercept CE r SEE TE Limits
  3C 16.3 ± 4.7        
Field MC 13.6 ± 4.1 0.71 6.71 2.69* 0.62 3.78 4.7 5.00, -10.38
  NAF 13.4 ± 4.9 0.55 8.86 2.86* 0.57 3.96 5.2 5.87, -11.60
  A 14.3 ± 4.4 0.60 7.68 1.96 0.57 3.97 4.7 6.44, -10.36
  Friedl 14.4 ± 4.7 0.57 8.01 1.86 0.57 3.94 4.7 6.69, -10.42
  NIR 14.3 ± 4.6 0.50 9.16 1.98 0.49 4.20 5.1 7.30, -11.27
  BIA-AK 17.1 ± 4.5 0.95 0.05 -0.78 0.91 2.00 2.1 4.65, -3.09
  BIA-Lohman 16.0 ± 4.0 1.07 -0.74 0.33 0.90 2.14 2.1 3.83, -4.48
Lab BP 16.3 ± 5.5 0.75 4.12 0.04 0.86 2.42 2.7 5.35, -5.43
  HW 15.8 ± 4.7 0.87 2.51 0.53 0.86 2.44 2.5 4.31, -5.36
  1. * Represents significance (p < 0.0055), Represents an unacceptable TE (TE > 4.0% BF)
  2. CE = Constant error, TE = Total error, SEE = Standard error of estimate, r = Pearson product-moment correlation coefficient, Limits = 95% limits of agreement (CE ± 1.96 SD of residual scores (predicted-actual))
  3. % Fat = (body mass - fat free mass)/body mass
  4. 3C %fat [3] = [(2.118/body density) - [0.78 × (total body water in L/body mass in kg)] - 1.354] × 100
  5. MC – Marine Corps [18], %fat = (0.740 × abdominal circumference in cm) - (1.249 × neck circumference in cm) + 0.985
  6. NAF – Navy and Air Force [21], % fat = [(4.95/body density) - 4.5] × 100
  7. NAF [20], body density = [0.155 × log (height in cm)] - [0.191 × log (abdominal - neck circumference in cm)] + 1.032
  8. Army [19], %fat = [76.5 × log (abdominal - neck circumference in cm)] - [68.7 × log (height in cm)] + 43.7
  9. Friedl [8], %fat = [0.771 × (abdominal - neck circumference in cm)] - (0.132 × height in cm) + 4.29
  10. NIR = Near-infrared interactance (Futrex 6100/XL)
  11. BIA = Bioelectrical impedance analysis (RJL Systems Quantum II)
  12. AK = Computer-generated from BodyGram™ Version 1.31 (Akern Bioresearch)
  13. Lohman [12], fat free mass (kg) = [0.485 × (height in cm2/resistance in Ω)] + [0.338 × (body mass in kg)] + 5.32
  14. BP = BOD POD® [4], %fat = [(4.57/body density) - 4.142] × 100
  15. HW = Hydrostatic weighing [4], %fat = [(4.57/body density) - 4.142] × 100