Rheumatoid Arthritis and Osteosarcopenia: Associated Factors

Inclusion criteria: 1. Being diagnosed with RA according to the ACR/EULAR 2010 criteria 2. Being a female or male over the age of 50 3. Having the mental and physical capacity to complete the study questionnaires and tests 4. Providing voluntary consent to participate in the study by signing the Informed Consent Form Exclusion Criteria: 1. Having an acute illness/disability or significant cognitive impairment that prevents understanding and performing the required tests 2. Having thyroid or parathyroid disease, uncontrolled diabetes, Cushing's syndrome, anemia. 3. History of malignancy 4. Severe cardiovascular disease, enal failure, advanced-stage COPD, decompensated liver disease 5. History of gastrointestinal (GIS) surgery 7-Having another coexisting autoimmune/inflammatory rheumatic disease (e.g., SLE, Ankylosing Spondylitis, etc.), psoriatic arthritis, vasculitis, familial Mediterranean fever...) 8-Having severe/symptomatic hand osteoarthritis and/or deformities 9-Severe/symptomatic osteoarthritis in the knee, lumbar, hip, or ankle region 10-Having Carpal Tunnel Syndrome, De Quervain, lateral epicondylitis, cubital tunnel syndrome or a history of traumatic hand injury 11-Having a significant neurological disease, stroke, MS, myopathy, Parkinson's disease, radiculopathy/polyneuropathy/brachial plexopathy or others nerve root compressions 12-History of surgical intervention on the upper and lower extremities or spine 13-Having severe kyphosis or scoliosis 14-Having any others disease causing balance disorders (neurological, orthopedic, metabolic, etc.) 15-Having a major/significant psychiatric disorder (based on the medical history, and hospital records) 16-Current use of androgens or estrogens 17-Having prostheses, being fully dependent, or immobilized