Barre class can be a good option for beginners and is generally low-impact. "Barre fitness is ideal if you're just getting into exercise," Smith told WebMD. "The classes will improve your balance, build strength, make you more Barre helps strengthen and tone your muscles without increasing bulk, and it improves your posture. It also increases cardiovascular endurance and metabolism, which helps to quickly burn calories. Regular barre workouts can increase your bone density, which can help prevent conditions like osteoporosis.flexible, burn calories, and improve stability through a stronger core."