Body frame/ body build question

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http://www.healthstatus.com/calculate/fsz

All of the different body build formulas I find seem to only take into account the upper body. Should you not look at hips and knees as well to get a more accurate idea of someones frame or build? :ohwell: I believe I have a small upper half but would be floored if I had anything other than a medium build for my bottom half (wide hips and wide knees).

Wondering what everyone's thoughts are! :flowerforyou:


Thanks everybody