Crunch
UpdatedStrengthen your core with the Crunch - CONFLICT 2! Engage your abs and build a stronger midsection, one rep at a time.
The Crunch mainly works the core. No equipment needed: it uses just your bodyweight.
Crunch Muscles Worked
Primary
Abdominals (rectus abdominis)
Secondary
Obliques; Deep Core (transverse abdominis)
Crunch Variations and Alternatives
How to do the Crunch
Lie on your back on the floor with your knees bent and feet flat on the ground. Place your hands lightly behind your head without interlocking your fingers.
Tighten your abdominal muscles gently by drawing in your belly button to your spine.
Keeping your back flat on the floor, slowly lift your shoulder blades no more than 3 inches off the floor and then lower back down. Ensure your neck remains straight and your chin up to avoid straining.
Exhale as you rise up, and inhale as you return to the starting position.
Be cautious to avoid pulling your head with your hands, which can strain the neck. Movement should be driven primarily by the abdominal muscles.
Perform the desired number of repetitions and sets.
Remember to perform the exercise in a controlled manner to maximize engagement of the abdominal muscles and minimize the risk of injury.
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Crunch FAQs
What muscles does the Crunch work?
The Crunch mainly works the core. The main muscles are the rectus abdominis.
What equipment do you need for the Crunch?
None. The Crunch is a bodyweight exercise, so you can do it anywhere.
What are some Crunch variations and alternatives?
Similar exercises include the Three-Quarter Sit-Up, Ab Roller Crunch, Crab and Against-Wall Crunch.
Training calculators
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