What exercise modification of a floor abdominal crunch would you prescribe for an individual who has a bulging cervical disc(s)?

Avoidance: As a sports medicine doc as well as someone who has suffered with a herniated cervical disc i would recommend you avoid abdominal crunches that place a strain on your neck. Crunch enthusiast will tell you that if done with correct form it will not strain your neck, however, I have found that not to be true. Substitute "plank" exercise for a great core workout. Your neck and abs appreciate.

Reverse Crunch: Lie down with head comfortably on towel or small pillow. Bring one knee up to 90 degress, then the other. Press arms into the floor. Tighten stomach and draw knees closer to chest, lifting buttocks if possible. May use object between knees also. Breathe and count with each contraction. Holding breath will aggravate discs.

Core strength: See an exercise health specialist who understands subtleties. There are many ways to maximize core abdominal strength without placing unnecessary wear and tear on the discs injured in the neck. A disc injury should not keep you from being fit and strong.