What exactly are your biomechanical problems? Collapsing knees... from collapsed arches?
how do you know you injured your gracilis? Is it a strain or tendon problem or what?
These will likely help you a lot wfs:
http://www.eatmoveimprove.com/2009/1...-dysfunctions/
http://www.eatmoveimprove.com/2010/1...g-on-the-feet/