Walk in the door at Next Phase Arlington any time of day and you’ll be greeted with the kind of enthusiasm and energy that comes exclusively from people busy doing what they love. Creating a “Happy Place” for the Arlington community is Next Phase’s #1 priority — they just happen to be a kick-ass fitness studio, too.

Located in the Courthouse neighborhood, at 2009 14th Street N., Next Phase’s class schedule boasts a heart-thumping lineup of high intensity interval training (HIIT) classes including TRX, Tabata, Barre and something they like to call HIIT Pilates: Pilates reformer training partnered with high intensity intervals for a well-rounded, albeit sweaty, workout.