Place a stability ball between your lower back and a wall.
Position your feet a shoulder’s width apart away from the wall and soften your knees.
Loosely loop a resistance band around your wrists.
Bend your elbows to point your fingertips towards the ceiling with your palms facing each other.
Maintain a neutral spine and engage your deep abdominal and shoulder blade muscles throughout this exercise.
Simultaneously slide down the wall into a squat position as you reach your arms overhead into a "V" position, pressing out gently into the band.
Pause, then push yourself back up the wall, driving the movement with your buttock muscles as you return to the start position with control, maintaining light tension on the band as your arms come down.
Repeat.