1. Facing the floor, hands on floor, feet on ball shin/ankle height
2. Body in alignment parallel to floor
3. Pull legs in towards body, butt in air
4. Use abs to help pull
5. Extend legs out and repeat
Jack Knife on Ball
Tags: Jack Knife on Ball
1. Facing the floor, hands on floor, feet on ball shin/ankle height
2. Body in alignment parallel to floor
3. Pull legs in towards body, butt in air
4. Use abs to help pull
5. Extend legs out and repeat
Jack Knife on Ball
Tags: Jack Knife on Ball