There is currently not enough conclusive evidence to definitively recommend custom orthotics to completely eradicate lower back pain. However, there are mounting studies of evidence which suggest custom orthotics helps reduce twisting of the lower legs and gives support to the legs which helps align the pelvic tilt. This improved body posture and in turn, helps relieve tightness and tension in the lower back muscles.
A recent study in the United States identified characteristics of a person’s gait as contributors to chronic low back pain. Participants in the study, all suffering from low back pain, experienced a 68 per cent improvement in low back pain symptoms, after being fitted with foot orthotics.
Another study examined foot posture and function and its possible relationship with low back pain. The study included a large patient population of 1,930 subjects. It concluded that foot orthoses might have a role in the prevention and treatment of lower back pain. Because the incidence of pronated foot function (rolling in of the ankle and flattening of the medial arch) was found to be associated with low back pain—with a higher incidence in women.