Diagonal Curl Up
- Body weight
1) Lie on your back and plant your feet on the floor - point your knees up towards the ceiling.
2) Keep your arms straight and reach towards your knees.
1) Contract the core and curl up towards your right knee - this will cause a slight twist in your trunk.
2) Pause at the top. Now, slowly reverse the movement to the starting position.
3) Repeat on the other side.