“12-3-30”, “mobility”, “build-a-booty”—you’ve probably heard these terms floating around the internet or in casual conversation. They’re trending now, but which are actually here to stay? Peloton Instructors Matt Wilpers and Marcel Dinkins are helping you sort through the noise and decide whether these 7 fitness trends are worth including in your routine for the long term. Don't make your workout routine just a trend—start up with the Peloton App for free: onepeloton.com/app