A brace for dynamically correcting the bending of the joints of the lower limbcomprisinga thigh grip, a leg grip, connection means between said thigh grip and saidleg grip,wherein said connection means comprise at least two flat flexible profilesthat work inextension, elastically opposing the bending of the knee, and said bracecomprises a footgrip and further flexible means arranged for connecting said leg grip to saidfoot grip,which work in extension elastically opposing the bending of the ankle.