Exercise Comparison
3/4 Sit-Up vs Decline Oblique 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.
Decline Oblique Crunch
Secure your legs at the end of the decline bench and slowly lay down on the bench.
Raise your upper body off the bench until your torso is about 35-45 degrees if measured from the floor.
Put one hand beside your head and the other on your thigh. This will be your starting position.
Raise your upper body slowly from the starting position while turning your torso to the left. Continue crunching up as you exhale until your right elbow touches your left knee. Hold this contracted position for a second. Tip: Focus on keeping your abs tight and keeping the movement slow and controlled.
Lower your body back down slowly to the starting position as you inhale.
After completing one set on the right for the recommended amount of repetitions, switch to your left side. Tip: Focus on really twisting your torso and feeling the contraction when you are in the up position.
Verdict
Both exercises target the abdominals. 3/4 Sit-Up is a beginner exercise using bodyweight, while Decline Oblique Crunch is beginner and uses bodyweight.