An exoskeleton for a leg of a user comprises a leg structure, a foot plate moveably mounted thereto, and a biasing member extending between the leg structure and the foot plate, the foot plate is moveably mounted to the leg structure between a first position in which the rearward portion extends downwardly and the forward portion extends upwardly and a second position in which the rearward portion extends upwardly and the forward portion extends downwardly and the foot plate is biased to the first position.