The invention relates to a lumbar belt comprising an elongate flexible body (1) which is elastically deformable in the longitudinal direction and which comprises at least one end at least one closure means (11, 12) of the belt. loop around the lumbar abdominal region of a wearer. According to the invention, the belt comprises elastic return bands which comprise at least: a pair (20) of upper, left (21) and right (22) upper return bands, each having a rear end (31, 32) fixed on the flexible body (1) in the central region (10) and a front end (41,42) provided with attachment means (43,44) at the other end, and between the rear end and the front end, an elastic portion having substantially the same length for the two upper left (21) and right (22) strips, - a pair (24) of lower, left (25) and right (26) return strips, which have each a rear end (35,36) fixed on the flexible body (1) in the central region (10) and a front end (45,46) provided with attachment means (43,44) at the other end, and between the rear end and the front end, an elastic portion having substantially the same length for both b and lower left (25) and right (26), the pairs (20,24) of upper and lower bands inducing when looping closed contention constraints of different intensity on the sacro-lumbar dorsal region. L'invention concerne une Ceinture lombaire comprenant un corps souple (1) allongé qui est élastiquement déformable dans le sens de la longueur et qui comprend au niveau d'une extrémité au moins, des moyens de fermeture (11,12) de la ceinture en boucle autour de la région lomboabdominale d'un porteur. Selon l'invention la ceinture comprend des bandes de rappel élastiques qui comprennent au moins : - une paire (20) de bandes de rappel supérieures, gauche (21) et droite (22), qui possèdent chacune une extrémité arrière (31,32) fixée sur le corps souple (1) dans la région médiane (10) et une extrémité avant (41,42) pourvue de moyens d'accrochage (43,44) à l'autre extrémité, et
