Inclusion Criteria:  Current osteoarthritis clinical diagnosis according to either European League Against Rheumatism (EULAR) or American College of Rheumatology (ACR) criteria VAS/NRS Knee pain ≥3/10 during activity  Exclusion Criteria:  Previous experience with BFR Has followed knee exercise or kinesiotherapy program in the past 3 months New medicines in the past 3 months Any lower limb surgery in the past 6 months Knee arthroplasty surgery (Knee replacement) Any active healing process affecting walking (fracture, sprain, strain, etc.) Diagnosed with rheumatologic/neurologic disease affecting functionality Diagnosed or history of heart or vascular diseases Diagnosed with respiratory/metabolic disease Personal history of cancer Cognitive problems Pregnancy (only for female participants) Any other indication not to participate in exercise