Thanks for the suggestion TeaTime. I found it difficult to isolate frames where you could see the elbow
and the waist clearly. So I decided to just pick one good elbow frame and create a "body scan" type image, where I stripped the outer clothing off and approximated the frame underneath. Note:
the actual weight may be inaccurate, this is just to illustrate my approximation of a body frame:
I don't know what most people's idea of a man's actual waist is, so I googled it: "at the hip bones just below the belly button". So that's where I drew the waistline.