Description
The Adaptation Test (ADT) assesses a patient's ability to minimize sway when exposed to surface irregularities and unexpected changes in support surface inclination. Sequences of platform rotations in the toes-up or toes-down direction elicit automatic motor responses. For each platform rotation trial, a sway energy score quantifies the magnitude of the force response required to overcome induced postural instability.
Unanticipated toes-up or toes-down rotations elicit automatic responses, which tend to destabilize the patient's balance. During the first (unexpected) trials, the initial disruptive responses are corrected by secondary responses in the opposing muscles. With each subsequent trial, initial reactions are attenuated and secondary responses strengthened to reduce overall sway.
Performance on the ADT requires adequate ankle range of motion and muscle strength, as well as effective motor adaptation
