This is a good exercise core muscle development.
- Lie on your back with your arms outstretched to your sides.
- Bend your knees at a 60 degree angle and hold your feet up just off the floor.
- Keeping your back and arms down, raise your hips up and off the floor so that your knees are over your chest.
- Contract your abs for a moment and then return to the starting position.
Exercise images by Everkinetic.