How to Do Sit-Up: Muscles Worked & Proper Form

Sit-Up exercise technique

Muscles Worked in Sit-Ups

muscles worked in sit-ups

Primary muscles worked:

Secondary muscles worked:

How to Do Sit-Ups

  1. Lie on your back, with your hands in front of your chest and your knees bent to about 90 degrees. Use a weight or something to stick your feet under, so they don’t lift from the ground.
  2. Lift your upper body by contracting your abs and bending forward.
  3. Bend as far forward as possible, and then return to the starting position.


The sit-up is a classic body weight exercise for strengthening your abs. You can increase the load by holding a weight against your chest.

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Text and graphics from the StrengthLog app.