I have struggled with completing the wrist push-ups advocated by Coach Summer, even when I attempted to execute the movement from my knees. So, having at hand my trusted stretch band, which in my case is a old bike-tire tube, I wrapped it around my chest after having secured it above to provide for considerable pull. I then was able to execute the movement in the form depicted on the video featured in the video library and referenced on the "Wrist Endurance" sticky. I am hoping to eventually lesson the amount of pull, and be able to do the push-ups without resistence. This method is worth a try if pushing up seemed impossible from the bent wrist position; it is actually very possible with just a little bit of help.
I experimented with a couple of anchors, but the easiest way to set up the band (or tire) by looping it around the bottom of a ring. This way, it can be raised or lowered with the ring buckle, to the right level and the right amount of pull. I eventually found a piece of foam to stick between the tube and my chest, as the tube tightened a bit and was uncomfortable around the torso without some padding.