There’s nothing less sexy than the word "erg," but the indoor rowing machine has long been the secret for a total body workout. (So is, of course, actual rowing, but we can’t all live on the Charles River.) Now Equinox, that gym filled with people who look like they go to the gym, has recruited national rowing champion Josh Crosby to create a new class called Shockwave that usees the rowing machine, amongst other apparati, to unleash the Winklevoss twins within. Classes are broken into four stations—arms, legs, core, and rowing—and the class members are divided into teams. Competition! Sweat! Good looking people! It’s just like college, but minus the studying.