Per Bernal If you want to look like an elite athlete in time to take your shirt off for summer, then you better start training like one. Don’t know where to start? We recruited Ben Prentiss, a strength coach and owner of Prentiss Hockey Performance in Stamford, CT, who trains NHL All-Stars like Jonathan Quick and Eric Staal, to write this full-body workout that can be done with nothing more than sliders—an excellent tool to challenge your muscular stability, balance, and overall athleticism. “The workout pairs agonist and antagonist muscles together as supersets,” explains Prentiss.