Sciatica is a tough one. A lot of times when clients have discomforts or pains they can be managed with exercise or simply avoided, while a referral (manual therapist, etc) does their work. With sciatica that really isn’t possible. The pain associated with sciatica or a bulging disc is pretty immobilizing.
With that being said, you can try Mackenzie pushups, when tolerable. Basically, with this condition the vertebrae aren’t bent the wrong direction and end up pinching a disc. The Mackenzie pushups are done such, that the vertebrae are bent back the other way to create room for the disc to slide back in.
If I were you, I would focus on their training and lifestyle when they recover. The thing with sciatica is that IT MAY OR MAY BE DIRECTLY RELATED TO AN ANTERIOR TILT OF THE PELVIS, but it sure will not hurt to have a body in better alignment. Knowing that, I would take hard look at my clients structural alignment when are ready to return to exercise.
With that being said, I follow McGill’s five stage approach to back fitness.
Corrective exercise and motor pattern, whole body stability, increase endurance, strength and speed, power, and agility.
hope this helps,