Exercise Comparison
Ab Crunch Machine vs Decline Reverse Crunch
Side-by-Side
Muscle Analysis
Shared
Instructions
Ab Crunch Machine
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.
Decline Reverse Crunch
Lie on your back on a decline bench and hold on to the top of the bench with both hands. Don't let your body slip down from this position.
Hold your legs parallel to the floor using your abs to hold them there while keeping your knees and feet together. Tip: Your legs should be fully extended with a slight bend on the knee. This will be your starting position.
While exhaling, move your legs towards the torso as you roll your pelvis backwards and you raise your hips off the bench. At the end of this movement your knees will be touching your chest.
Hold the contraction for a second and move your legs back to the starting position while inhaling.
Repeat for the recommended amount of repetitions.
Verdict
Both exercises target the abdominals. Ab Crunch Machine is a intermediate exercise using machine, while Decline Reverse Crunch is beginner and uses bodyweight. Choose Decline Reverse Crunch if you're looking for a more accessible option, or Ab Crunch Machine for a greater challenge. Decline Reverse Crunch is a compound movement working multiple joints, making it better for overall strength. Ab Crunch Machine isolates the target muscle for focused development.