Depends what you class as "rough ground".
The best ground to bounce on is, scarey as it sounds, concrete. Cos you know where u are with concrete!
Grass is ok provided you've got socks on - these can be read about elsewhere, use the SEARCH at the top of the screen, you need socks for the grip, otherwise you cant step very wide/long at all until you slip.
Sand, gravel and dusty paths are to be avoided as this can result in slips and bails, not to mention grit in your joints which isnt good to man nor machine.
Water, bad idea, as is oily patches such as roads and petrol stations. Having worked in a Petrol station, rubber and diesel is a BAD combo and slip central. I crossed through a bus lane the other month and slipped so watch out!
