a corset - type orthotic device is provided for treatment of lower back pain by causing uniform abdominal compression . the corset utilizes vertically spaced apart straps which overlap at the front of the corset to cause tightening of the corset about the torso of the wearer to increase the abdominal compression . the straps are connected at one end to lateral margins of a front panel of the corset and extend rearwardly through metal rings fixed to lateral margins of a rear panel of the corset . the straps then extend forwardly for joinder at the front panel . upper and lower ones of the straps are also coupled and extend through another metal ring which allows the straps to vary in length to accommodate the variations in circumference of the lower ribs , waist and hips .