Abstract:Objective The aim of this study was to compare the contributions of possible differ- ences to postural control in different ages. Methods Seven balance tests were administered to 109 subjects,aged between 13-79 years. The subjects were divided into three groups according to their age. The ranges of angular displacement in the pitch and roll direction and total angle areas were recorded using Swaystar system. Results (1) Compared with the other two groups,the senior group had a poorer performance when the afferent information of sensory,visual or vestibular systems were disturbed, and had greater sway amplitude in left leg stance test; (2) The adolescent group rely more strongly on vision to stabilize their body. Conclusions We concluded that all of the three factors associated with the postural control,especially the proprioceptive and vestibular systems, showed significant association with age, and attention should be directed toward these phenomena.