Quick and Easy Ballet-Barre Workout
(A) Stand with your feet together, chest lifted, and abdominals drawn in. Raise your arms in front of you to shoulder height and bend your elbows to 90 degrees.
(B) In one motion, bend your right knee and lift your leg to hip height as you lower your arms down to your waist. Return to the starting position, then switch sides. This is one rep; repeat 20 times without pausing. (This should feel like marching in place at a fast pace.)