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Cocoon Crunch exercise demonstration - starting position (step 1 of 2)
Showing step 1 of 2
Step-by-step demonstration of the Cocoon Crunch exercise showing proper form and technique

Cocoon Crunch

Target Muscles

Equipment Required

Exercise Type

Reps Only

How To Do

Lie flat on your back with arms and legs fully extended. Simultaneously lift your upper body and legs, bringing your knees toward your chest and reaching your arms forward to wrap around your knees. Squeeze your abs at the top, then slowly lower back to the starting position with control.

Step-by-Step Instructions

  1. Lie flat on your back on the floor or a mat with your arms extended straight above your head and your legs fully extended. This is your starting position.
  2. Simultaneously lift your upper body and legs off the ground, bringing your knees toward your chest while reaching your arms forward to wrap around your knees.
  3. Squeeze your abdominal muscles at the top of the movement, ensuring your lower back stays off the ground.
  4. Slowly lower your upper body and legs back to the starting position, keeping control throughout the movement.
  5. Repeat for the desired number of repetitions.

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Frequently Asked Questions

What muscles does the Cocoon Crunch work?
The Cocoon Crunch primarily targets the abdominal muscles, especially the upper and lower abs. It also engages the obliques for core stability, making it a great full-core movement.
Do I need any equipment for the Cocoon Crunch?
No equipment is required for the Cocoon Crunch it's a bodyweight exercise you can do anywhere. You only need a comfortable surface, such as a yoga mat, to support your back.
Is the Cocoon Crunch suitable for beginners?
Yes, beginners can perform the Cocoon Crunch by starting with smaller ranges of motion and keeping the feet slightly lowered. Gradually increase the intensity as your core strength improves.
What are common mistakes to avoid when doing the Cocoon Crunch?
Avoid jerking your upper body forward or using momentum instead of controlled movement. Keep your lower back pressed against the floor to prevent strain and focus on squeezing the abs at the peak.
How many sets and reps should I do for Cocoon Crunch?
For general fitness, aim for 3 sets of 10–15 controlled reps. For core endurance, you can increase to 20 reps or add timed holds at the top for extra challenge.
Are there safer modifications for Cocoon Crunch if I have back issues?
If you have back concerns, keep your legs bent throughout the movement and avoid fully extending them. Use a slower tempo and focus on engaging your core to protect your spine.
What variations of Cocoon Crunch can make it more challenging?
You can make the Cocoon Crunch harder by holding a light weight, extending your legs fully before each crunch, or adding a rotational twist to target the obliques more intensely.