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Exercise Lab

Arm-Reaching Rotation Crunch -- Single-Sided

View Instructions

Equipment

  • No Equipment Needed

Muscle Groups

  • Abs & Core

Purposes

  • Abdominal strength
  • Side of trunk (Obliques)

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Description

  • Lie on your back with your feet flat on the floor.
  • With over-lapped hands, reach up the thigh toward one knee.
  • Keep your neck neutral as you roll your upper back off the floor.
  • Return slowly to the starting position.

ProTip

  • Initiate the crunch at the head, then roll your spine up segmentally into a crunch

Mistakes

  • Jutting the chin as you crunch up
  • Reaching only the hands sideways instead of rotating the entire torso