Stance and swing phase ankle phenotypes in youth with Charcot-Marie-Tooth type 1: An evaluation using comprehensive gait analysis techniques

•Youth with CMT1 have three terminal stance and two mid-swing ankle phenotypes.•All possible combinations of stance/swing ankle phenotypes are present.•Each stance/swing ankle phenotype reflects specific joint level impairments.•Youth with CMT1 may present with asymmetric ankle phenotypes in stance and swing.•Optimal treatment should consider stance/swing ankle phenotype combination.