If you’ve been experiencing back pain for a while, you should try physical therapy. Physical therapy helps to stretch out and relax your joints and muscles in your back. Aerobic exercises are usually a part of the back pain physical therapy process such as swimming. When you swim, the weight and pressure on your back is relieved. Aerobic exercise is most effective when done for 30-40 minutes a week. Back pain physical therapy also focuses on dynamic lumbar stabilization and core muscle strengthening which to be effective should be done for 15-20 minutes every other day.