Is there a way to train your abs by isolating your neck?

I am recovering from a recent neck injury, which was quite serious. Although i am not really supposed to work out for a while, my stomach area is strarting to get out of shape.
Are there any experts out there who could tell me how i could work out my mid region without putting any strain on my neck.
Only serious answers PLEASE!

Your abs are working all the time.

It's a good idea to practice working them more, while you're just sitting about, walking, taking the bus and so on.

This isn't just useful while you're laid up with an injury.

Start by 'sucking in' your belly, hold it, and let it out again. Practice doing a few of these at a time, until you can do it without changing your breathing. Once you've learned how to do this, you should just 'wag' your tummy in and out all the time, wherever you are.

(obviously, you'll get funny looks if you do it when your midriff is visible; use your judgement about appropriate situations)

This movement works the Transverse ab muscles; these are the deepest layer, and the hardest to train with gym-type exercises.

They WON'T get you hard, cut and ripped (ie a firm six-pack with very little covering fat), but they will maintain the muscles so that you can work back up to a good condition more effectively AFTER YOUR NECK HAS HEALED.

When you're better, you can get along to a Pilates class to learn the 'hardcore' versions of this exercise.

A good traditional yoga teacher will be able to accomodate your vulnerable neck, so you can train while you heal.

The most important thing is to accept that you'll lose some condition while you're recovering from an injury. Risking making the injury worse is counterproductive. How good will excellent abs look underneath a deformed neck?

Go easy and be patient; it's good for your mental fitness.

Do reverse crunches. Lay on your back, legs extended to the ceiling. Raise your pelvis off the floor pushing feet to the ceiling (not back towards your head).