Nice site. I enjoyed your “Healthy Body Calculator®.” One question: I notice you direct people to measure their elbow for determining their frame size. Over on the Met Life site, which also has a BMI calculator, they say to measure your wrist. Just curious if you know if both are right or if someone is in error. Thanks.

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    Thanks for the feedback.

    FYI, body frame size is not a factor in calculating BMI which is determined from weight and height only.

    Measurement of body frame size has not had a lot of research to back it up. The wrist measurement is based on Caribbean research done on cadavers. I don’t have the reference handy for using elbows. I checked Met Life and they use elbow measurements as well. They still publish height – weight tables, but the ones on their web site look “lighter” than the last published ones I saw.

    The bottom line is people think they can weigh more if they have a larger skeletal frame. The reality is most women are small frame and most men are medium frame. Whether you use wrist or elbow, vertical height is still a factor. So, the taller you are, the larger your frame and therefore the more you can weigh.

    Basically, in order to estimate body frame size, one would have to choose a site where there is very little overlying fat, tissue or skin on top of your skeleton. The wrist and elbow are the 2 most likely sites to reflect skeletal size. The wrist and elbow tables are pretty gross and should only provide an estimate of skeletal size.