3/4 Sit-Up Exercise

Builds strength and control by improving stability, coordination, and efficient movement.

3/4 Sit-Up
3/4 Sit-Up
Level: beginner
Equipment: body only
Force: pull
Mechanic: compound
Core muscles: abdominals
Secondary muscle: none

Description

3/4 sit-up focuses on controlled movement and maintaining proper body alignment throughout the exercise. The goal is to create tension where needed while avoiding unnecessary strain or momentum. This helps improve movement quality, joint stability, and overall physical control.

Instructions:

  1. Lie down on the floor and secure your feet. Your legs should be bent at the knees.
  2. 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.
  3. Flex your hips and spine to raise your torso toward your knees.
  4. At the top of the contraction your torso should be perpendicular to the ground. Reverse the motion, going only ¾ of the way down.
  5. Repeat for the recommended amount of repetitions.

Exercise FAQ

How can I progress this safely?

Increase time under tension, then add resistance or a harder variation. Progress only if you can keep the same clean position. Think of it as controlled movement done with repeatable, clean reps.

How long or how many reps is enough?

Stop when you can’t keep alignment. Quality beats duration—shorter sets with perfect form are more effective than long shaky holds. Think of it as controlled movement done with repeatable, clean reps.

How do I know I’m using my core and not my lower back?

Your torso should stay steady and your lower back shouldn’t pinch or take over. If it does, shorten the range, reduce difficulty, and brace harder.

Disclaimer

This content is for educational purposes only and does not replace professional medical or fitness advice. Consult a qualified healthcare provider before beginning any new exercise routine. Exercise safely and listen to your body.

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