"I did nothing but ballet-inspired Barre classes for six weeks – here's how my body changed" Could six weeks of barre workouts really give me a dancer's physique? May 12, 2021 raquel arocena torresGetty Images Barre workouts have become a staple fitness class in recent years, with popular franchise Barrecore (who now offer online sessions, too) helping to lead the way. Promising to tone your body and burn fat, all while improving your range of motion and flexibility, barre classes involve performing small, repeated movements, using your bodyweight and holding your body in certain positions to really 'feel the burn'. Sometimes dumbbells, ankle weights and resistance bands are added into the mix too.