Follow up Participants will meet with research assistants (research nurses and family medicine residents) at the onset of the study, every four weeks of the subsequent 32 weeks of intervention, and four weeks after the intervention. At each of those visits, participants will be asked to fill in measurement questionnaires. Research assistants will also investigate the presence of side effects or complications and remind participants that the research protocol restricts them from taking any anti-inflammatory medication throughout the 32 weeks of intervention. Participants will also meet the physiotherapist every four weeks to review exercises. At the onset of the study, participants will receive a study calendar detailing each of their appointments. In addition, patients will receive an appointment card at the end of each visit. This card provides the time of the next visit, contact information, as well as a list of conditions for which participants should contact the study center. If a participant presents a sustained deterioration of symptoms or function, or experiences undesirable side effects, the presumed contributing part of the treatment will be discontinued.