Muscle weakness is a commonly reported symptom of rheumatoid arthritis. People with RA note tenderness, stiffness, and pain in affected muscles. RA can cause a 25% to 70% reduction in muscular ...
Main Outcome Measurements Peak torque of the knee extensors, relaxed and contracted muscle stiffness of the vastus lateralis, knee joint musculoarticular stiffness (MAS), and drop vertical jump (DVJ) ...