Exercise Comparison
3/4 Sit-Up vs Barbell Ab Rollout - On Knees
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Muscle Analysis
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Only in Barbell Ab Rollout - On Knees
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.
Barbell Ab Rollout - On Knees
Hold an Olympic barbell loaded with 5-10lbs on each side and kneel on the floor.
Now place the barbell on the floor in front of you so that you are on all your hands and knees (as in a kneeling push up position). This will be your starting position.
Slowly roll the barbell straight forward, stretching your body into a straight position. Tip: Go down as far as you can without touching the floor with your body. Breathe in during this portion of the movement.
After a second pause at the stretched position, start pulling yourself back to the starting position as you breathe out. Tip: Go slowly and keep your abs tight at all times.
Verdict
Both exercises target the abdominals. 3/4 Sit-Up is a beginner exercise using bodyweight, while Barbell Ab Rollout - On Knees is expert and uses barbell. Choose 3/4 Sit-Up if you're looking for a more accessible option, or Barbell Ab Rollout - On Knees for a greater challenge.