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Check Out 35 of Our Favorite Bodyweight Ab Exercises to Chisel Your Core
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Crunchy Frog

  • Begin sitting, balanced just behind your sits bones, and rock back slightly to lift your feet off the floor; gently pull your knees to your chest.
  • Exhale, pull your navel to your spine, and lean back slightly as you open your arms to the sides and straighten your legs.
  • Inhale and return to the starting position to complete one rep. (Try seated knee tucks if this is too hard.)
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