1.First lie down on the floor and raise your legs up in a vertical straight way, with your hip and shoulders flat on the ground.
2.Contract your lower abs to lift your hips and lower back of the floor.
3.When you reach the highest point of the exercise, your knees will be over your chest level.
4.Slowly return to the starting position and repeat the movement.
Tips and Advises:
It’s important to keep your shoulder and upper back stable on the ground while performing the exercise.