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
Engaging your abs, lift your shoulder blades off the ground and bring your knees towards your chest, simultaneously curling your upper body towards your knees.
4
Pause for a moment at the top, then slowly lower your shoulder blades and extend your legs back to the starting position.