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Crunches

Crunches exercise diagram
Equipment required
Primary muscle group(s)
Crunches exercise muscle groups Crunches exercise primary muscle groups
  1. Lie flat on your back with your feet flat on the ground, with your knees bent at 90 degrees. Alternatively, you can place your feet up on a bench a few inches apart with your toes turned inwards and touching.
  2. Place your hands lightly on either side of your head.
  3. Keep your elbows in  so that they are parallel to your body.
  4. Push your back down flat into the floor to isolate your abdominal muscles.
  5. Gently curl your shoulders forward and up off the floor.
  6. Continue to push down into the floor with your lower back.
  7. Raise your shoulders about four to six inches only.
  8. Hold and squeeze your abdominal muscles for a count of one.
  9. Return to the start position in a smooth movement.
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Related exercises to discover

Crunches is a at-home exercise that targets abs. Use the illustration and instructions above to learn how to perform this exercise with proper form. Related exercises that work similar muscle groups include Trx suspension strap mountain climbers, modified bicycles / elbow-to-knee crunches / cross-body crunches and plank leg lifts. Browse our free illustrated exercise directory for more exercises.

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Our exercise illustrations represent original artwork registered with and protected by the U.S. Copyright Office. Unauthorized use violators will be prosecuted. More details.
WorkoutLabs Fit Simple Workouts App for Weight Loss and more!
Choose a plan or build one
Follow ready-made home and gym plans with visual demos and timers – or create custom workouts from exercises like this.
Personal Training Software from WorkoutLabs
Coach or trainer?
Build illustrated workout plans for your clients in minutes – then share them as branded PDFs or interactive workouts.
Shop Yoga Cards by WorkoutLabs
Curious about yoga?
Our illustrated Yoga Cards deck is the perfect way to start practicing at home – no class, no studio, no experience needed. 100,000+ sold.
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