The invention relates to an orthosis and a system for support of the foot, particularly in peroneal paralysis as a result of damage to the peroneal muscle or the peroneal nerve, wherein the orthosis from a relatively rigid forefoot plate, a resilient connecting member and a relatively rigid lower leg part consists.Since many orthoses are used not for different shoes or terrain, the invention has the object of providing an orthosis and a system for support of the foot, particularly in peroneal paralysis or Peroneusteillähmung resulted in damage to the peroneal muscle or the peroneal nerve (or breakdown the vorfußhebenden muscles), be designed so that the foot is supported and the orthosis can be used for different shoes or terrain.According to the invention the task for an orthosis for support of the foot, particularly in peroneal paralysis as a result of damage to the peroneal muscle or the peroneal nerve is composed of a relatively rigid forefoot plate, a resilient connecting member and a relatively rigid lower leg part, is achieved in that the forefoot less than 45 % of the plantar surface covered is only arranged in the region of the metatarsophalangeal joints and is formed at least for receiving the metatarsophalangeal joints D4-D5.
