Instructions
Lie on the floor with legs straight out in front of you. Turning to one side and using both hands, pick up a dumbbell and place it in one hand, whilst keeping your elbow on the floor at a 45 degree angle. Your other arm should be flat on the floor on the other side of your body. The dumbbell should be roughly inline with your chest. Press the dumbbell up until your arm is fully extended. Lower the dumbbell until your elbow touches the floor and pause momentarily before pressing it back up.
Tips
This exercise can also be performed by doing both sides at the same time. It can also be performed with your legs bent, if this is better for your lower back. The goal is not to use any leg drive throughout the movement.
