Quality and Independence of Gait Classification Scale for DMD (QIGS-DMD)

MFM is a valid and reliable measure to evaluate the severity of the motor deficit of both ambulatory and non-ambulatory children with neuromuscular diseases. MFM consists of 32 items in 3 dimensions and is scored as a percentage of the maximum possible score which higher scores indicate better functional status. VLERS is a 10-item ordinal scale that identifies the functional status of the lower limbs. According to VLERS, level 1 indicates that the patient can walk independently and climb stairs without assistance while level 10 indicates is the patient is bedridden.