DMD WarriorDMD Warrior

What does Loss of Motor Function mean in Duchenne (DMD)?

Loss of Motor Function is a Duchenne (DMD) functional assessment term, explained for patients, families, and caregivers.

Category: NSAA and Functional Assessment Terminology

Loss of Motor Function

The reduction or disappearance of an ability that a participant previously performed. In DMD, clinical studies may track the loss of specific tasks or broader functional abilities to assess disease progression and determine whether a treatment helps preserve independence.

Updated November 3, 2026

All terms