A device is disclosed for self administration of adjustable lumbar traction by a user in a supine position upon a support. The device comprises an upper body harness releasably encircling the torso and anchored to the support spacedly outwardly of the user's head, a lower body harness releasably encircling the user's waist and anchored to a support spacedly outwardly of the user's feet and user adjustable elastically biased tensioning members extending between the lower body harness and the support to which it is anchored. The device is preferably carried on a bedstead or table.