I don't know if this has ever been posted here before or not, but here is a VERY cool Gait Analysis Video, comparing Healthy Gait to Hip Dysplasia Gait and CCL (ACL) Rupture Gait.
http://accad.osu.edu/~hcaprett/COTA...90504.html
ps - if you're on dial up, it'll take awhile.
.