“You guys are all insane in the best way!” Justin Goldman, a personal trainer and group fitness instructor at Equinox in New York City, hollers at a studio full of sweaty students, one of whom is me.

When Shamita Shetty posted her latest fitspiration video on July 28, 2025, she gifted her fans an exciting new way to build strength through dynamic partner workouts. Moving beyond solo gym sessions, ...