2. Bicycle crunches
If you really want to push yourself to the limits then bicycle crunches should be your next challenge. This is a very high impact, an energetic exercise that can greatly affect your abdomen region, thereby helping to reduce the belly fat. Lie on the ground or mat floor and keep your hands behind your head or beside it. Lift off both the legs and keep them bent at the knees. Bring the left knee close to the chest while keeping the other knee out. Then do the alternate. You will be moving your torso and legs in a pedaling manner.