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Cross-Arm Rotation Crunch — Single-Side

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Muscle Groups
  • Abs and Core
  • Abdominal strength
  • Side of trunk (Obliques)


The cross arm rotational crunch is a good exercise to target you obliques and love handles. It is very similar to the cross arm crunch. The difference is that when you rise up twist to one side. Think about trying to bring your shoulder to the opposite knee. Really focus on using your abs to perform the cross arm rotational crunch.


  • Lie on your back with your feet flat on the floor.
  • Cross your arms over your chest.
  • Keeping your neck neutral, roll your upper back off the floor and twist to one side.
  • Return slowly to the starting position.


  • Jutting the chin as you crunch up
  • Not rotating the torso enough