Try to keep your legs as straight as you can. Roll up a towel and put it inside your pillow case, along one long edge. You can increase the number of repetitions gradually. Share via facebook dialog.
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Hover arms and legs about two inches off the floor. People who have had stomach operation in the recent past, people suffering from hernia and ulcer, pregnants should not attempt this exercise. Pulling navel in toward spine, pulse legs up 1 to 2 inches, then down, without moving upper body. Continue alternating between pikes and knee tucks.