By "reverse flex," it means I can push my fingertips backwards towards the back of my wrist without the rest of my fingers moving, using my other hand to do it.
In other words, it's not true that "no one has flexibility" in that joint, as Deadbait thinks. I also have lateral flexibility of about 30 degrees in each joint (movement side to side).
Jess
Edited on 4/28/2006 5:45 PM