Guest guest Posted October 28, 2004 Report Share Posted October 28, 2004 Hi folks: It is worth noting that there are different ways to calculate BF% and they can give very different answers. They cannot all be right. Indeed it is more likely that NONE of them are. For example the US Navy method previously described gives a number for me of 14.3%. But another method - the Duerenberg Formula - gives 25.3% using similar data. This is a huge discrepancy. For the Duerenberg equation see below: " The body mass index (BMI), also known as the Quetelet index, is far more commonly used to define obesity and has been found to closely correlate with the degree of body fat in most settings. BMI = (weight [kg]) / (height [m])2. The body fat percentage can be estimated using the Deurenberg equation. Body fat percentage = 1.2(BMI) + 0.23(age [y]) – 10.8(sex) – 5.4, with males coded as 1 and females as 0. This formula has a standard error of 4% and explains approximately 80% of the variation in body fat. " Source: http://www.emedicine.com/med/byname/obesity.htm This suggests caution is advisable. As you approach what you think are low levels of body fat it may be a good idea to have a proper (immersion or DEXA?) determination done to make sure you are not doing anything you might later regret. Rodney. Quote Link to comment Share on other sites More sharing options...
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