X-Message-Number: 24553 Date: Tue, 24 Aug 2004 07:33:35 -0700 (PDT) From: Randall Burns <> Subject: Re:BMI as a measure of obesity I agree that these longevity studies should use something other than BMI--it isn't _that_ hard to calcuate. The formula I have is old--and never really used optimal statistical tecniques(i.e. think a good statistician could come up with a better formula). The approximate body fat percentage (%) can be calulated according to the following formula. Body Fat Percentage = (Body Fat Weight x 100) / total bodyweight Body Fat Weight = Total bodyweight - Lean Body Mass< Lean Body Mass = A + B + E - C - D Find the values of A, B, C, D, and E from the following: For Women: A = (Total body weight x 0.732) + 8.987<BR> B = Wrist measurement (at fullest point) / 3.140 C = Waist measurement (at naval) x 0.157 D = Hip measurement (at fullest point) x 0.249 E = Forearm measurement (at fullest point) x 0.434 For Men: Body Fat Formula For Men A = (Total body weight x 1.082) + 94.42 C = Waist measurement x 4.15 Garrow JS and Webster J. Quetelet's index (W/H2) as a measure of fatness. International Journal of Obesity 1985;9:147 153. http://www.fatfreekitchen.com/weightloss/bmi.html __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=24553