Abbreviations:
ADHD: Attention deficit hyperactivity disorder; CK: Creatine kinase; CMT2O: Charcot-Marie-Tooth type 2O; DLL: Distal lower limb; LL: Lower limb; MRI: Magnetic resonance imaging; NCV: Nerve conduction velocity; PLL: Proximal lower limb; SD: Standard deviation; SMA-LED: Spinal muscular atrophy lower limb-dominant; UL: Upper limb.