Adolescents with intellectual disability have reduced postural balance and muscle performance in trunk and lower limbs compared to peers without intellectual disability

► Adolescents with intellectual disability have poorer postural balance than age-matched controls. ► Adolescents with intellectual disability do not rely more on vision to maintain their postural balance than to their peers without intellectual disability. ► Muscle performances play only a minor role in postural balance performance for adolescents. ► It appears as if measures to improve balance and strength are required already at a young age for people with intellectual disability.