myopathic gait myopathic gait myopathic gait (or waddling gait) is a form of gait abnormality. myopathic gaitspecialtyneurologycausesweakness of the proximal muscles of the pelvic girdle the "waddling" is due to the weakness of the proximal muscles of the pelvic girdle. the patient uses circumduction to compensate for gluteal weakness. conditions associated with a myopathic gait include pregnancy, congenital hip dysplasia, muscular dystrophies and spinal muscular atrophy.