Crossing the Plank
Targets: Shoulders, abs, obliques, and legs
Place ball against wall, then lie on left side with hips stacked, left elbow under shoulder and sides of feet resting on top of ball, right leg crossed in front of left.
- Slowly lift hips, forming a line from head to toe, and extend right arm toward ceiling.
- Hold for 30 seconds; lower.
- Switch sides and repeat.