Exercise Comparison
3/4 Sit-Up vs Cable 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 Crunch
Kneel below a high pulley that contains a rope attachment.
Grasp cable rope attachment and lower the rope until your hands are placed next to your face.
Flex your hips slightly and allow the weight to hyperextend the lower back. This will be your starting position.
With the hips stationary, flex the waist as you contract the abs so that the elbows travel towards the middle of the thighs. Exhale as you perform this portion of the movement and hold the contraction for a second.
Slowly return to the starting position as you inhale. Tip: Make sure that you keep constant tension on the abs throughout the movement. Also, do not choose a weight so heavy that the lower back handles the brunt of the work.
Repeat for the recommended amount of repetitions.
Verdict
Both exercises target the abdominals. 3/4 Sit-Up is a beginner exercise using bodyweight, while Cable Crunch is beginner and uses cable. Choose 3/4 Sit-Up if you have access to bodyweight, or Cable Crunch if you prefer cable. 3/4 Sit-Up is a compound movement working multiple joints, making it better for overall strength. Cable Crunch isolates the target muscle for focused development.