One adult Parkour class at STREB, in Brooklyn, designed to enhance the mover's kinesthetic and spatial awareness as it relates to an urban environment and focuses on strength, endurance, alignment, efficiency, range of motion and artistry. Exp. 4/14. One PopAction class -- Elizabeth Streb's signature technique, which intertwines dance, athletics, boxing, rodeo, the circus and Hollywood stunt work into bristling muscle-and-motion vocabulary. Exp. 4/14.