Crab Crunch

This bodyweight exercise targets the rectus abdominis and hip flexors by combining a reverse crunch with a static crab hold. It builds core stability while challenging shoulder and wrist mobility.

HOW TO DO IT

  1. Sit on the floor with knees bent and hands placed behind you, fingers pointing forward.
  2. Lift your hips off the ground until your torso and thighs form a flat table shape.
  3. Tuck your knees toward your chest while keeping your hips elevated.
  4. Extend your legs back out to the starting crab position without touching the floor.
  5. Repeat the tucking motion for the desired number of repetitions.

COMMON MISTAKES

  • Dropping the hips to the floor between repetitions.
  • Flaring the ribcage instead of rounding the spine.
  • Bending the elbows excessively during the hold.
  • Rushing the movement and losing tension in the core.

TIPS

  • Keep your gaze fixed on your toes to maintain neck alignment.
  • Push firmly through your palms to relieve pressure on the wrists.
  • Exhale sharply as you pull your knees inward to maximize abdominal contraction.

SAFETY

  • Avoid this movement if you have current wrist or shoulder injuries due to the extended load.
  • Stop immediately if you feel sharp pain in the lower back.

VARIATIONS

  • Reverse Crunch
  • Tabletop Hold
  • Spiderman Crunch
  • Hollow Body Rock

DETAILS

Muscles
Abdominals
Equipment
Bodyweight
Type
Strength Training
Difficulty
Intermediate
Tracked as
Weight & Reps

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