Lumbar radiculopathy (also known as sciatica or radiculitis) is a condition that occurs when a nerve in your low back is injured, pinched, or compressed, causing pain or other symptoms that can extend from the low back to the hip, leg, or foot. Lumbar radiculopathy can be caused by sudden trauma or by long-term stress affecting structures in the back. It most often affects people aged 30 to 50 years. Risk factors for lumbar radiculopathy include repeated lifting, participating in weight-bearing sports, obesity, smoking, sedentary lifestyles, and poor posture. The majority of lumbar radiculopathy and sciatica cases recover without surgery and respond well to physical therapy. Physical therapists design individualized treatment programs to help people with lumbar radiculopathy reduce their pain, regain normal movement, and get back to their normal activities.