Instructions:
- 1Sit on the stability ball with your feet flat on the floor, hip-width apart
- 2Roll down on the ball until your lower back is supported by the ball
- 3Raise your arms straight in front of you
- 4Twist your torso to one side, then twist back to the other side
- 5Repeat this movement for the required number of repetitions
Tips:
- Ensure you are keeping your abs contracted throughout the exercise
- Twist your torso, not just your arms
- Exhale as you twist to each side
- Keep a slow, controlled movement