An overview of biofeedback techniques in mechanical low back pain: effects on sensory integration of balance

Low back pain is a common musculoskeletal disorder involving the lumbar spine. It affects almost 80% of the world's population and is associated with functional limitations. The reported global prevalence ranges from15-30%. Postural control involves processing the information from sensory stimulus derivative of vestibular, visual, and somatosensory systems in a coordinated manner to precisely regulate center of mass and body positioning. Failure of one or more of these systems, or incorrect processing of sensory information leads to instability or risk of fall. Low back pain can also modify the sensory input for postural control. Biofeedback can be utilized to assist "down-train" elevated muscle activity or to "up-train" weak or inhibited, muscles. Clinicians can use biofeedback to determine if patients are able to relax and evaluate psychophysiological reactions of muscles. Using biofeedback, patients can be educated about physiological processes and how biopsychosocial factors can interact causing recurrent complaints of pain.