6, LV3, BL22, 8123, 11124, and BL25 will be selected for stimulation. Disposable sterile acupuncture needles (0.25 x 40 mm, Dong-bang Acupuncture, Seong-Nam, Korea) will be used. Chuna treatment, which is a kind of manual therapy consisting of relaxation and mobilization of the lumbar joint sand back mu