Reliability and Minimal Detectable Change in the Gait Assessment and Intervention Tool in Patients With Multiple Sclerosis.

Background: Gait impairment is one of the main causes of disability in people with multiple sclerosis. The Gait Assessment and Intervention Tool is an observational gait scale that assesses kinematic parameters using video recordings.

Objective: To study intra- and interrater reliability and the minimal detectable change of the Gait Assessment and Intervention Tool in individuals with multiple sclerosis.