If you are looking for a good tutorial to explain the principals of edge loop modeling the human form for games I suggest you pick up a copy of
HEAD MODELING FOR GAMES from the Gnomon Workshop. Its for maya but I picked up a copy being a 3ds Max user and it was great. Mayan Escalante really goes over the principals so I found it really easy to follow the tutorial and do it in Max as he did it in Maya. Hope that helps. By the way there is also a DVD on modeling the body.