Wrist weakness in lateral plane

No obvious gags please!

I have managed to strain both my wrists throwing hooks. Doesn't seem to matter whether I throw them with a vertical or horizontal fist, my wrist has a tendency to rotate outwards towards the little finger causing a strain. I think having twisted them a couple of times I have now got proprioception problems which leave me more prone to injury.

What I was wondering is, are there any excercises that I can do (I guess with DBs) that will help to strengthen my wrist in that plane helping prevent injury? Does anyone have any other thoughts?

You need one of these from ironmind.com


Or you can make one with an old dumbbell.

I've found that pushups on my knuckles seem to help quite a bit with wrist strengthening--try those in conjuction with sandyholt's suggestion.