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.