Exercise Comparison
3/4 Sit-Up vs Crunch - Hands Overhead
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.
Crunch - Hands Overhead
Lie on the floor with your back flat and knees bent with around a 60-degree angle between the hamstrings and the calves.
Keep your feet flat on the floor and stretch your arms overhead with your palms crossed. This will be your starting position.
Curl your upper body forward and bring your shoulder blades just off the floor. At all times, keep your arms aligned with your head, neck and shoulder. Don't move them forward from that position. Exhale as you perform this portion of the movement and hold the contraction for a second.
Slowly lower down to the starting position as you inhale.
Repeat for the recommended amount of repetitions.
Verdict
Both exercises target the abdominals. 3/4 Sit-Up is a beginner exercise using bodyweight, while Crunch - Hands Overhead is beginner and uses bodyweight. 3/4 Sit-Up is a compound movement working multiple joints, making it better for overall strength. Crunch - Hands Overhead isolates the target muscle for focused development.