Ben Affleck turned to L.A.-based coach Magnus Lygdback, creator of the Magnus Method, to build up the athletic, muscular frame necessary for this brutalist version of the Dark Knight in 2017's Justice League. "Our goals to build Ben as Batman were to build, leg strength, stability," Lygdback said when the Men's Health team dropped by Ultra Body Fitness in L.A. to get a rundown of the workout. "You know Batman's carrying around this heavy suit all day on set, so we needed Ben to have the support he needed to carry that suit."

The trainer and his colleague Hunter Seagroves led us through one of the typical days of the Batman program, which focused on developing flexibility and leg strength. The super functional workout uses a few key multi-joint movements complemented with smart, martial arts-centric exercises to help you to get moving like the protector of Gotham.