Muscle madness bodybuilding and fitness gym is sheffields newest and largest custom designed gym for the professional body builder with all the machines custom built for maximum benefits muscle madness isnt about 20 stone bodybuilders the gym provides advice and training to anyone large or small regardless of experiance bodybuilding is an art and takes years of hard work to master so if you are 6 stone or 26 stone this gym can provide you with the right soloution to gaining and maintai