The Ness
A tried-and-true method beloved by A-listers from Goldie Hawn to Gwyneth Paltrow, The Ness may not have invented rebounding, but founders Colette Dong and Aly Giampolo certainly gave it an upgrade, with beat-based choreography and targeted moves that work your whole body in just one session. A Ness-instructed jump on the mini-trampoline gets your heart pumping, lymphatic system blazing, and your muscles toning, all while going easy on your joints. Their sunny, brick-walled Soho studio serves as an intimate oasis, but you can bounce at home thanks to their online and live-streamed classes.