Echo-nerve tracking during an electroneuromyographic (ENMG) examination by identifying the optimal stimulation site would reduce the stimulation intensities delivered to the patient and thus improve the tolerance of this examination.

Inclusion Criteria:

• Patient requiring an electroneuromyogram whose indication allows the application of a standard protocol of examination.
• Patient that has given his/her free and informed consent.
• Patient that signed the consent form.
• Patient with an health insurance plan.
• The patient is at least 18 years old (≥).
• he patient is under 80 years old (≤).

Exclusion Criteria:

• Patient with symptoms of neuropathy during the screening.
• Patient whose Neurological severity score (NSS) score is ≥ 3.
• Patient whose neurological examination is abnormal and suggestive of neuropathy.
• Patient presenting a pathology that could cause neuropathy (e.g. diabetes, renal failure, etc.).
• Patient already participating in a category 1 research study (Jardé law).
• Patient in an exclusion period determined by another study.
• Patient under the protection of justice, under guardianship or under curatorship.
• Patient refusing to sign the consent form.
• Patient for which it is impossible to provide information about the study.
• Pregnant patient, parturient, or breastfeeding.