Limping can be the origin of back pain or a symptom of back pain. Limping occurs when pain, symptoms or weakness in the back or lower extremity alters your gait. The leg on the injured side is not functioning correctly, so it lacks its proper movement pattern. This causes other areas of the body to compensate, which leads to uneven stress or a larger than normal work load. Individuals take between 5,000 to 10,000 steps a day on average — and limping can cause back pain.
Signals from the brain to the legs travel down the spinal cord, through the spinal nerve roots, which pass between the lower back vertebra, into the legs. Lack of flexibility in the low back causes pinched nerves that lead to symptoms in the leg. These symptoms can include pain, numbness, tingling, burning, weakness, tightness, spasm and diminished reflexes. The source of the leg pain is the pressure on the nerve in the lumbar spine, and limping can be a direct result of this pinched nerve.
Low Back Pain
Low back pain can result from muscle spasm, muscle strain, muscle tightness or ligament injury. When the lumbar spine is not working correctly, other areas — such as the pelvis or hips — must compensate for it. This additional workload fatigues the muscles and joints, leading to pain, injury or limping.
Source: www.livestrong.com; Donald A. Ozello; October 23, 2014.