http://www.getbodysmart.com/index.htm
It has animations so people can actually see the muscle in action, as well some people will actually learn the proper way to describe body movements in space (flexion, extension etc.)
only thing they are lacking is the spinal-pelvic-hip movments which are IMO some of the most difficult concepts to grasp.
"The greatest obstacle to knowledge is not ignorance but the illusion of knowledge." -Barry Marshall, Nobel Laureate


I'm gonna check that out.
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