Inclusion Criteria:  Diagnosed with knee osteoarthritis Speak Dutch, French or English No other pathology restricting patients to participate safe Time and motivation to visit 2x/w for 12 weeks  Exclusion Criteria:  Neurological disorders previous surgery or disorder with blood vessels. (Symptomatic) heart or vascular disease Increased risk for DVT Avoiding physical exercise due to medical conditions. Rheumatoid arthritis BMI >30 Recent severe trauma or surgery in the lower extremity