Steve Morris, a personal athletic trainer, specializes in training for football players. He takes a no nonsense approach and teaches players to embrace strength training without ignoring the abs. As the core, strong abs mean fewer back injuries. He features 5 key exercises for taking your game up a level and staying in the game. Nagging back aches won't always take you out of the game but they don't help you perform at your best level.

See the importance of training abs for great football performance here.  Below is one of the exercises Steve features in his article on football core strength training for prevention of back injuries. There is also a You Tube video of the full contact twist.