I am not sure if I deserve your fine compliments, Yoda, but therefore I appreciate it more.
Annyway, here's a discus throwing video:
The discus throwers work on an inclined plane as we do. Not sure how similar it is to ours though. Probably flatter and perhaps with a strong inside-out orientation compared to the target line. Fascinating to see how they drive their hips forward to optimize their alignment the last instance before they drive it home. There also seems to be a lot of float loading of the primary (and only) lever going on.
Dude . . . thanks for posting . . . . VERY INTERESTING . . . the plane of motion of the arms isn't similar but look at the pivot . . . that is Swinging from the Feet for sure . . . look at how the segments get out of line (knee bend) and then each one snaps in-line from the ground up and you get some axis tilt too . . . beautiful stuff . . .wonder how much power comes from the rotation versus the extension of the knees hips and spine.