Recent research studied the effects of ankle foot orthotics on trunk postural control and lower limb coordination in 20 children (ages 4-12) with and without cerebral palsy. The results of tridimensional trunk kinematics and thigh, shank, and foot elevation angles while walking barefoot and with ankle foot orthotics indicated the following
significantly greater trunk excursions in children with cerebral palsy compared to typically developing children in both conditions
when wearing ankle foot orthotics, increased trunk frontal angular velocity was seen in children with cerebral palsy whereas typically developing children showed increased trunk frontal displacement
no significant changes in trunk displacement and angular velocity were recorded in the sagittal plane in either group
significant changes in shank and foot elevation was seen in both groups when wearing the ankle foot orthotics
Reference: Degelean M, De Borre L, Salvia P, Pelc K, Kerckhofs E, De Meirleir L, Cheron G, Dan B. Effect of ankle-foot orthoses on trunk sway and lower limb intersegmental coordination in children with bilateral cerebral palsy. J Pediatr Rehabil Med. 2012 Jan 1;5(3):171-9.