Patent ID: 7104935

Claim:
An expander for the lower part of the body, comprising: a lumbar band ( 1 ) having corresponding catching members ( 2 ), an elastic strip ( 7 ) insertably fitted into and woven with the lumbar band ( 1 ), and a sole contact plate ( 6 ) having inserting portions ( 3 ) for both feet mounted thereon, wherein the elastic strip ( 7 ) is woven around a substantially back half of the lumbar band ( 1 ), and coupling rings ( 7 b ) mounted at the opposite outer ends of the elastic strip ( 7 ) pulled out from the opposite sides of a front part of the lumbar band ( 1 ) are coupled to corresponding upper-end hooks ( 20 a ) of length-adjustable straps ( 20 ) connected with side portions ( 6 a ) of the sole contact plate ( 6 ) in a looped state.