Inclusion Criteria:  body mass index (BMI) ≥35 kg/m2 unilateral or bilateral knee osteoarthritis (KL grade ≥2 and clinical symptoms) able to provide written, informed consent in English able to attend assessment appointments in Edmonton, Alberta have reliable and unlimited access to internet and a laptop, computer or tablet at home for access to videoconferencing sessions have space at home to complete exercises with equipment provided, or able to attend in-person exercise sessions  Exclusion Criteria:  any medical conditions where participation in resistance exercise or nutrition adjustments are contraindicated neurological disorders (i.e. multiple sclerosis) post-traumatic OA with a fracture that impacts joint (secondary to injury or accident) rheumatoid arthritis prior bariatric surgery prior knee or hip replacement surgery recently (within 3 months) taken anabolic steroids or other muscle building compounds