The Experimental Research Clinic at the University of Waterloo followed up with every patient for two years, assessing their pain mechanism, exercise prescription compliance, and outcomes.

“we did a two-year followup with every single patient who came in and we subcategorized them because we assessed everyone into the mechanism of their uh pain pathway we gave them an appropriate exercise prescription we followed up to see did they even comply because some people didn't uh and then how are you doing after two years if you were in the subcategory that everything has failed you've been told you need surgery so you're at the end of the road now you're a surgery case in the 2-year followup following the plan”