Ab Crunch Machine vs Sit-Up

Select a light resistance and sit down on the ab machine placing your feet under the pads provided and grabbing the top handles. Your arms should be bent at a 90 degree angle as you rest the triceps on the pads provided. This will be your starting position.

At the same time, begin to lift the legs up as you crunch your upper torso. Breathe out as you perform this movement. Tip: Be sure to use a slow and controlled motion. Concentrate on using your abs to move the weight while relaxing your legs and feet.

After a second pause, slowly return to the starting position as you breathe in.

Repeat the movement for the prescribed amount of repetitions.

Lie down on the floor placing your feet either under something that will not move or by having a partner hold them. Your legs should be bent at the knees.

Place your hands behind your head and lock them together by clasping your fingers. This is the starting position.

Elevate your upper body so that it creates an imaginary V-shape with your thighs. Breathe out when performing this part of the exercise.

Once you feel the contraction for a second, lower your upper body back down to the starting position while inhaling.

Repeat for the recommended amount of repetitions.