Exercise Comparison
3/4 Sit-Up vs Cable Reverse Crunch
Side-by-Side
Muscle Analysis
Shared
Instructions
3/4 Sit-Up
Lie down on the floor and secure your feet. Your legs should be bent at the knees.
Place your hands behind or to the side of your head. You will begin with your back on the ground. This will be your starting position.
Flex your hips and spine to raise your torso toward your knees.
At the top of the contraction your torso should be perpendicular to the ground. Reverse the motion, going only ¾ of the way down.
Repeat for the recommended amount of repetitions.
Cable Reverse Crunch
Connect an ankle strap attachment to a low pulley cable and position a mat on the floor in front of it.
Sit down with your feet toward the pulley and attach the cable to your ankles.
Lie down, elevate your legs and bend your knees at a 90-degree angle. Your legs and the cable should be aligned. If not, adjust the pulley up or down until they are.
With your hands behind your head, bring your knees inward to your torso and elevate your hips off the floor.
Pause for a moment and in a slow and controlled manner drop your hips and bring your legs back to the starting 90-degree angle. You should still have tension on your abs in the resting position.
Repeat the same movement to failure.
Verdict
Both exercises target the abdominals. 3/4 Sit-Up is a beginner exercise using bodyweight, while Cable Reverse Crunch is beginner and uses cable. Choose 3/4 Sit-Up if you have access to bodyweight, or Cable Reverse Crunch if you prefer cable. 3/4 Sit-Up is a compound movement working multiple joints, making it better for overall strength. Cable Reverse Crunch isolates the target muscle for focused development.