Yoshida Style Ball Jointed Doll Making Guide.
Tokyo, JP: Hobby Japan, 2006.
As far as putting the 2D artistic anatomy information into a useful 3D ball jointed doll, the best book I have found is Yoshida Style. Pages 29 and 30 give a brief description about modeling the legs, using anatomy book diagrams of the muscles of the legs. The photo sequence in the book is very good, but the trick to actually getting the most from Yoshida Style, is to also have the English translation of the Japanese text as well.
This is what Ryo Yoshida says about the important muscles of the leg:
The line of the legs viewed from the front at the inner thigh and around the knee creates the difference between left and right and so is very important. (Sartorius muscle, rectus femoris muscle, vastus lateralis muscle, vastus medialis muscle)
So here are those four muscles, from the front view.
These are the leg muscles from both the front and back views.
Too much information. My Eyes Glaze Over !!! (MEGO)
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