Katie Austin and the Cavinder twins are hosting a sold-out, live class in Fort Worth, Texas, tonight.

Katie Austin, daughter of fitness icon Denise Austin, didn’t always intend to follow in her mother’s fitness footsteps. "I’ve been in the fitness industry since I was born, basically," Austin told Fox ...

Walk into any gym in the world and the scene feels familiar: rows of treadmills humming, racks of weights clattering, mirrors reflecting repetition. But the future of fitness may not look like this at ...