I'm trying to make an external ankle-foot orthotic for myself. Most all of these devices have a foot plate that goes inside the shoe and is uncomfortable as hell after any length of time. I'm trying to make one that attaches to the outside of the shoe.
I'm modeling it after this AFO 
But, like I said, I want to mount it to the outside of my shoe instead of having a foot plate. Basically, I want to extend those rods in the photo, and run them down the length of the shoe. Something like this...
At the moment I'm unsure on how to come up with a solid attachment to the shoe. The rods will generate quite a bit of force on the shoe, so it has to be quite strong. I understand that the soles of athletic shoes are fairly soft and that it may be a non-starter, but I'd like to give it a try.
So, that said, are there any good ways to make this attachment?

Take a look at this... http://www.ossurproducts.com/ossur-foot-up-drop-foot-brace.htm
– CJ F Jul 22 '15 at 13:59These devices don't aid in the cure of any ailment. They help people get through their day with a disability. The alternative to drag your foot and trip constantly. My advice is to quit being a self-appointed protector of things you don't know about.
– CJ F Jul 22 '15 at 14:07