Sit-Up

Learn how to do sit-up with a clear setup, controlled movement, and a technique you can repeat.

CoreBodyweight5 technique steps

See the movement
Sit-Up: matching illustrations comparing the setup and movement positions
01Set your position02Make the movement

How to do sit-up

  1. Lie down on the floor placing your feet either under something that will not move or by having a partner hold them. Your legs should be bent at the knees.
  2. Place your hands behind your head and lock them together by clasping your fingers. This is the starting position.
  3. Elevate your upper body so that it creates an imaginary V-shape with your thighs. Breathe out when performing this part of the exercise.
  4. Once you feel the contraction for a second, lower your upper body back down to the starting position while inhaling.
  5. Repeat for the recommended amount of repetitions.
Sit-Up exercise illustration

Sit-Up: muscles worked

Primary focus: abdominals and trunk.

Better reps before more weight.

Start with a version you can control. Record the same setup and range each time. Add reps or a small load increase when you can repeat the movement without changing the technique.

Plan your next set

Frequently asked questions

How do you do sit-up?

Lie down on the floor placing your feet either under something that will not move or by having a partner hold them. Your legs should be bent at the knees. Place your hands behind your head and lock them together by clasping your fingers. This is the starting position. Elevate your upper body so that it creates an imaginary V-shape with your thighs. Breathe out when performing this part of the exercise.

What muscles does sit-up work?

Sit-Up primarily trains the abdominals and trunk. The exact demand depends on your setup, range, and chosen load.

What is the best technique for sit-up?

Set the trunk position before beginning the movement or hold. Use the intended trunk action rather than arm or leg momentum. End the set when the position changes; longer is useful only while you keep control.

What can I do instead of sit-up?

Related options include Cross-Body Crunch, Crunch - Hands Overhead, Crunch - Legs On Exercise Ball. These can have different equipment, range, and movement demands. Open the guides below to compare the setups before choosing a replacement.

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