Recently, a biomechanical wedge system was developed for gait and balance training among patients suffering from gait disorders. The APOS system (APOS Medical & Sports Technologies Ltd, Hertzeliya, Israel) applies special semispherical shoes, with individually adjusted implants, to improve age- and disease-related loss in muscle strength and neuromuscular control. The semispherical rubber devices that are placed on the soles of the shoes at the hind-foot and mid-foot can be moved medially, laterally, forwards and backwards. The system can be individually adjusted in order to optimally balance loading and re-train postural control during gait. An additional advantage of this treatment approach is the extraordinary compliance. The system is easily adjusted, maintained, and allows safe gait training.