#4 Reverse Crunches
Instructions:
Step 1: Lie on the floor and get to the tabletop position. Bend your knees at 90 degrees. Keep your hands by your side.
Step 2: Slowly, bring your knees towards your chest and go until your hips and lower back are off the floor. Engage your abs through the movement. Repeat.
Do this exercise for 2 minutes.
Edited by Raunak J