Most are self-limiting, but some are persistent and severe. Back pain usually resolves within 7-10 days. If it lasts longer than that, then a physician should be consulted. Below is a description of the common causes of low back pain. They can occur after falls, from heavy lifting, bending and twisting.
Repetitive motion involving the back can also cause a sprain.
Poor physical condition, weakened abdominal and back muscles are contributing factors to back sprains. Over time, the discs lose some of their water content. This leads to less resilience. The degenerative disc does not support the spine as well as a normal disc, and there is more collapse of the spinal column. Over time this can contribute to back pain.