Core

Crunch Your Way to Six-Pack Abs

Quick Answer: Crunches are an isolation exercise that targets the rectus abdominis (six-pack muscles). They're a fundamental ab exercise for building core strength and definition.

Difficulty
Beginner
Calories/Min
4-6
Equipment
None
Muscles
Rectus Abdominis, Obliques

Crunch Form: Build Defined Abs

1

Lie flat on your back with your feet flat on the ground, or resting on a bench with your knees bent at a 90 degree angle. If you are resting your feet on a bench, place them three to four inches apart and point your toes inward so they touch.

2

Now place your hands lightly on either side of your head keeping your elbows in. Tip: Don't lock your fingers behind your head.

3

While pushing the small of your back down in the floor to better isolate your abdominal muscles, begin to roll your shoulders off the floor.

4

Continue to push down as hard as you can with your lower back as you contract your abdominals and exhale. Your shoulders should come up off the floor only about four inches, and your lower back should remain on the floor. At the top of the movement, contract your abdominals hard and keep the contraction for a second.

5

After the one second contraction, begin to come down slowly again to the starting position as you inhale.

6

Repeat for the recommended amount of repetitions.

Exercise Form

Crunches form - step 1
1
Crunches form - step 2
2

Benefits of Crunches

  • ✓Targets upper abs effectively
  • ✓Builds core definition
  • ✓No equipment needed
  • ✓Easy to learn proper form
  • ✓Can be done anywhere

Pro Tips

  • 💡Don't pull on your neck
  • 💡Keep lower back pressed into floor
  • 💡Focus on contracting abs, not lifting high
  • 💡Track your crunch count in Move

Common Mistakes to Avoid

✗Pulling on neck with hands
✗Using momentum to swing up
✗Lifting entire back off floor
✗Going too fast without control

Crunches Variations

Bicycle crunches
Reverse crunches
Oblique crunches
Cable crunches

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