Quote Originally Posted by NorthernChaosGod View Post
But I have ran with it before I started at the gym and never had problems, don't fall.
Easier said than done. I've bailed of treadmills at running at max speed because I stepped on the edge by accident.

As for running outside, its the weight bouncing up and down in my pocket that bothers me. I can't even take a key chain with a half dozen keys on it with me.