From a story on NPR:
A study in the July 5 issue of the Annals of Internal Medicine shows that massage is an effective treatment for lower back pain. In some cases, researchers report, the benefits of massage lasted for six months or longer.
After 10 weeks, the results were dramatic: Nearly two-thirds of the patients who received either type of weekly massage said their back pain was significantly improved or gone altogether. Only about one-third of patients receiving the usual care experienced similar relief.
Read or listen to the full story here.