helpful site

http://3dand2dmag.wordpress.com/2011/04/06/3d-maya-tutorial-rigging/

helpful site

http://www.rigging101.com/free/ikleg/index.htm

helpful site

http://web.alfredstate.edu/ciat/tutorials/SkeletonSetup.htm

Leg Rigging Tutorial

Joints

The first part of the process was to place all the joints creating the beginning of our skeletal structure. This joints are all points at which the final creation is posable. The bone indicates the connection between each joint. Also when creating the skeleton the joints all need to be orientated to mayas axis for easier animation.

Reverse Foot Lock

The reverse foot lock is an important part of the rigging process especially when it comes to animating the finished model. The lock keeps the foot in contact with the floor when creating a walking animation. This helps to create a realistic walking motion.