Model a crude human leg in SimMechanics

I am trying to learn the basics of SimMechanics and I'm having trouble understanding frames of reference and revolute joints and their orientation. Every time I make a small adjustment to the orientation or translation of a certain body, the entire system is messed up.

Is anyone willing to whip up a quick model of a foot, lower leg, knee and upper leg where all the joints are revolute joints? The model does in no way have to be extensive, just the connection between the bodies is what I am most interested in.

Answer 1

[Star Strider]

I don’t have (and so don’t use) SimMechanics, but your Question interests me, so I searched. Probably your best resource is Win Olympic Gold with SimMechanics: Modeling Figure Skating and Angular Momentum.

When in doubt about such things, it’s always appropriate to do a PubMed search. Mine discovered ‘Design of Optimal Treatments for Neuromusculoskeletal Disorders using Patient-Specific Multibody Dynamic Models’. Int J Comput Vis Biomech. 2009 Jul 1; 2(2): 145–155.