Lie on your back and get into a comfortable position. Keep your legs together and raise them vertically in the air. It’s perfectly ok to have a small bend in your knees if necessary. Extend both arms above your chest by reaching toward the sky. Tighten your core muscles and ensure that your lower back is touching the ground.

Grab the handles above your head and perform a crunch while contracting your abs. Your knees should raise up during the contraction. Straighten your torso until its erect and then repeat the exercise for the desired number of reps.