It seems likely that for this group, body fat contributes more, and lean tissue less, to body weight than in other groups. Akers RBuskirk ER. The BMI expresses body weight kg relative to stature height, m 2 and it should be noted that adjustment for height in this index is suboptimal [ 18 ].
Subjects were a convenient sample recruited through advertisements in local newspapers, through posted flyers, or through referral for body weight evaluation. Estimate from BMI. These findings have public health implications, as the prevalence of adult obesity as described by the BMI, may be underestimated at a population level, particularly among men.
Body mass index BMI is widely used to define obesity in the adolescent population. J Appl Physiol ; 27 : 96 — Age and BMI.
However, it tends to underestimate body fat for athletes, body builders or very lean individuals. Sports Health. Sign In. A simplified method for determination of residual lung volumes.
We have previously reported a temporal shift in the distribution of BMI in the population such that the prevalence of underweight women diminished between — and — [ 8 ], but that study did not investigate changes in body composition. The corresponding 4C percentage body fat ranges are presented in Table 3.
The patterns of estimated percentage body fat ranges are similar to those presented below for the 4C method. Forbes GB. Steven B Heymsfield. Navy body circumference method and skinfold testing can lose accuracy for the obese or extremely lean individuals.