These shapes seem to emphasize the distribution of mass or the alignment of the legs:
Rectangle: This could represent legs with consistent width from top to bottom, lacking defined curves. It suggests a more uniform and perhaps less athletic build.
Triangle: This shape highlights legs that are narrower at the top and significantly wider towards the lower thigh and knees. It could relate to a body type where weight is carried more in the lower half (like an ‘A’ or ‘Pear’ shape), though the chart seems to focus specifically on the leg itself. It might imply stronger, wider lower legs.
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