Prognosis is good for a complete recovery of a lumbar sprain or strain injury. The muscle typically recovers nearly 100 per cent with minimal scar tissue, that is if there was tearing of the muscle. You could prevent recurrent episodes of sprain and strain injury to your lumbar spine by a daily exercise program meant to stretch and strengthen your lumbar spine muscles. Recommendations for Sprain Stretching and exercise on a regular basis must be undertaken. If overweight, then you must reduce weight, or else, it will cause unnecessary strain. Ice packs and drugs could be used in case of recurrence of pain.