Ok so we'll look at just the frame itself.
[qimg]http://imageshack.com/a/img673/4569/j1H1TK.jpg[/qimg]
Here we can see that the entire image is a mess filled with motion blur. The left leg is really skinny, the arm blends into the body, the entire foot is dark instead of having a light sole (except for the heel), and Patty has an afro.
[qimg]http://imageshack.com/a/img538/4569/UxP8WX.jpg[/qimg]
Let's make it a little more obvious. Compare the frame right before and after, playing slowly.
[qimg]http://imageshack.com/a/img911/2535/j5bApN.gif[/qimg]
The frame is a mess. We can see the anatomy is all distorted and screwed up and it's unreliable. Look at the background too, and keep in mind Patterson is moving the camera while Patty is moving at the same time, so don't expect it to make too much sense. It's the kind of frame favored to base off of to make an inhuman shaped mask, or Trex size lower forearms, or a mouth moving and blabbering away or Groucho Marx wiggling eyebrows. And yeah that first frame with the foot outlined with a marker always bugged me, but you can compare the heel exposure on it to the "Split heel" frame.
Thanks for the kind words. I'm going to go back to not posting publicly now as I made a vow long ago and I only gave a brief resurface to respond to Tube and I've been biting my tongue on this heel split thing for awhile. I've spent enough time on this thing but I occasionally read this and the other forum. The other forum, it looks like in the Patterson threads that only the five or so of the most extreme and zealous ever post anymore and just repeat the same things over and over again. Like a crew on a sinking ship struggling to plug the holes and pretending everything is fine while the captain is drunk at the helm.