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Cross-Arm Ball Crunch

Cross-Arm Ball Crunch

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Muscle Groups
  • Abs and Core
  • Legs
  • Abdominal strength


The cross arm ball crunch is a good exercise for beginners. It is an easy exercise to learn yet it is an effective way to strengthen your abs. More advanced exercisers can use this exercise as a finishing exercise for their ab routine. When performing this exercise try to curl your body into a ball, don’t just sit up.


  • Lie on top of the stability ball, with the ball directly under your lower back.
  • Cross your arms over your chest.
  • Keeping your neck neutral, roll your upper back off the ball.
  • Return slowly to the starting position.


  • Jutting the chin as you crunch up
  • Placing the ball too high up under the back instead of keeping it under the lower back
  • Letting the ball roll back as you crunch up