Hi sean s
vam44 is absolutely right and I stand corrected. vam44 is giving you advice that is based on sound research into chronic low back pain. So I would go along with what he suggests as a first point. A therapist with skills in dealing with chronic back pain can address deconditioning issues - so a whole package is needed: appropriate strengthening, improving posture and also increasing your aerobic fitness are all important components.
And vam44 says about managing the painful messages can be very useful.