fightpedia/Interests/Trampling
Trampling is the practice of standing on an opponent's abs while he is lying on his back. It can be done both barefoot and with footwear.
Trampling can be a 'stake' – that is, a 'trophy' for the winner of a match – but it can also be practised on its own, much like Gut punching. In the latter case, a time-based challenge is often set.