Exercise Comparison
3/4 Sit-Up vs Frog Sit-Ups
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.
Frog Sit-Ups
Lie with your back flat on the floor (or exercise mat) and your legs extended in front of you.
Now bend at the knees and place your outer thighs by the floor (or mat) as you make the soles of your feet touch each other.
Now try pushing both soles and bringing them up as near you as possible while you keep the outer thighs on the floor (or at least almost touching it). Tip: In this position your legs should create a diamond shape.
Now, cross your arms in front of you by touching the opposite shoulders. This will be your starting position.
As you exhale flatten your lower back to the floor while curling the torso upwards. Tip: This will be like performing the first 1/4 movement of a sit up. Hold at the top position for a second.
As you inhale, slowly lower back to the starting position.
Repeat for the recommended amount of repetitions.
Verdict
Both exercises target the abdominals. 3/4 Sit-Up is a beginner exercise using bodyweight, while Frog Sit-Ups is intermediate and uses bodyweight. Choose 3/4 Sit-Up if you're looking for a more accessible option, or Frog Sit-Ups for a greater challenge. 3/4 Sit-Up is a compound movement working multiple joints, making it better for overall strength. Frog Sit-Ups isolates the target muscle for focused development.