"Spastik kaslar" refers to muscles that are stiff and tight due to a condition called spasticity. This often occurs in individuals with neurological disorders, such as cerebral palsy or multiple sclerosis. The stiffness can make movement difficult and may lead to discomfort or pain. Spasticity results from an imbalance in signals between the brain and muscles, causing excessive contraction. Treatment options include physical therapy, medications, and sometimes surgery to help improve mobility and reduce muscle tightness. Understanding and managing spasticity is essential for enhancing the quality of life for affected individuals.