Ab Crunch Machine vs Russian Twist

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.

Elevate your upper body so that it creates an imaginary V-shape with your thighs. Your arms should be fully extended in front of you perpendicular to your torso and with the hands clasped. This is the starting position.

Twist your torso to the right side until your arms are parallel with the floor while breathing out.

Hold the contraction for a second and move back to the starting position while breathing out. Now move to the opposite side performing the same techniques you applied to the right side.

Repeat for the recommended amount of repetitions.