Abdominal exercise: They're exercise your rectus abdominis and obliques. Begins with lying face up on the floor with knees bent. Then curl the shoulders towards the pelvis. The hands can be behind or beside the neck or crossed over the chest. Injury can be caused by pushing against the head or neck with hands. http://www.mayoclinic.org/healthy-living/fitness/multimedia/abdominal-crunch/vid-20084664
Answered 9/12/2014
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