Sit on the gym ball with feet on the floor such that hips-knees at 90-90 degrees, arms by the side.
Form & Movement
Maintain chin tuck, blades set and core set.
Breathe out, keeping the upper back straight, bend forward through the hips and twist to one side.
Breathe in, untwist to center, straighten back to starting position.
Repeat by alternating the twist to either sides.