An ankle-foot orthotic device incorporating an adjustable response system allowing the hindfoot to recognize that the foot landed on the heel during a walking sequence is provided. The device is constructed to provide feedback for the patient to make adjustments needed throughout the body structures to prepare for weight transfer onto the foot during gait. The system also helps the patient to maintain toe extension during a walking sequence. The device generally incorporates an articulated foot support and a foot support insert configured to substantially inhibit supination or pronation of the mid foot.