Join fitness trainer Katie Austin for a 15-minute no-equipment cardio and core workout, alongside class members Nikita Chaudhry and Paulyn Baens. In this routine, you'll power through creative, ...

A focused group workout that strengthens your core while boosting heart health and endurance. We’ll mix strength and conditioning drills to leave you energized and balanced.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The basic formula to losing weight is to burn more calories than you consume (though it’s not always that ...