Came off my bike 2 days ago and have broken my wrist. It's in a full cast for up to 6 weeks.

I'm wondering whether I can run with it? That could just be gentle 2 mile road runs - and if so, have people worn a sling to do so?

I'm totally pissed off - am planning May BGR attempt and was about to ramp training up. Concerned that even once cast is off that it will remain weak for a while and be next to hopeless for the scambling sections on legs 3 and 4.