Effect of Exercise on Muscle Activity, Strength, and Balance in People With Knee Osteoarthritis

Exclusion Criteria

• •i) severe knee trauma, knee surgery, or intraarticular knee joint injections in the previous six months, ii) active synovitis, iii) concurrent neurological (i.e. Parkinson's disease, Alzheimer's dementia, or polyneuropathy), endocrine (i.e., diabetes mellitus) and/or vestibular disorders which may affect balance, iv) chronic disease that may put them at risk during the exercise classes (i.e., history of heart failure, stroke, chronic obstructive lung disease), v) uncorrected visual impairment which may affect balance, or vi) an inflammatory rheumatic disease (i.e., rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, and chronic reactive arthritis).