The investigators propose a cohort study with the exploration of central motor neuron damage by QCT during the course of ALS in order to provide arguments for a better mechanistic understanding and follow-up of this disease with a poor prognosis. conditions: Amyotrophic Lateral Sclerosis studyType: INTERVENTIONAL phases: NA allocation: NA interventionModel: SINGLE_GROUP primaryPurpose: DIAGNOSTIC masking: NONE count: 30 type: ESTIMATED name: Quadriceps Combined Test measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Parameters from the QCT (Quadriceps Combined Test) measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data measure: Clinical and paraclinical likely course data sex: ALL minimumAge: 18 Years stdAges: ADULT stdAges: OLDER_ADULT facility: CHU de Clermont-Ferrand status: RECRUITING city: Clermont-Ferrand zip: 63000 country: France name: Lise Laclautre role: CONTACT phone: +33473754963 email: promo_interne_drci@chu-clermontferrand.fr name: Nathalie Guy role: PRINCIPAL_INVESTIGATOR lat: 45.77966 lon: 3.08628 hasResults: False