Exercise Comparison
3/4 Sit-Up vs Plank
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.
Plank
Get into a prone position on the floor, supporting your weight on your toes and your forearms. Your arms are bent and directly below the shoulder.
Keep your body straight at all times, and hold this position as long as possible. To increase difficulty, an arm or leg can be raised.
Verdict
Both exercises target the abdominals. 3/4 Sit-Up is a beginner exercise using bodyweight, while Plank is beginner and uses bodyweight. 3/4 Sit-Up is a compound movement working multiple joints, making it better for overall strength. Plank isolates the target muscle for focused development.