Instructions:

1. Lie flat on your back with your knees bent and feet flat on the ground.
2. Place your hands behind your head with your elbows pointing outwards.
3. Engage your abs and lift your shoulders off the ground, curling forward towards your knees.
4. Pause for a moment at the top, then slowly lower your shoulders back down to the starting position.
5. Repeat for the desired number of repetitions.