Identification of Novel Biomarkers in Early Charcot-Marie-Tooth 1A Disease

Inclusion Criteria: * Healthy volunteer or patient who has given consent for participation in the study or, for minors, a healthy volunteer whose two parents have given consent for participation in the study. * Patient with genetically confirmed CMT1A or with a parent whose diagnosis is genetically confirmed * Patient able to walk with or without assistance Exclusion Criteria: * Healthy volunteer with neurological disorders * Healthy volunteer or patient with a contraindication to MRI, * Healthy volunteers or patient under 30 kg * Helathy volunteer on long-term therapy * Patient with other neuromuscular pathologies * Patient in a period of exclusion from another research protocol at the time of signing the consent/non-opposition form * Pregnant or breast-feeding women * Subjects covered by articles L1121-5 to 1121-8 of the French Public Health Code (minors, adults under guardianship or trusteeship, patients deprived of their liberty, pregnant or breast-feeding women) * Subjects who cannot read and understand the French language well enough to be able to give their consent to participate in research