Clinical Research Directory

Inclusion Criteria: * Healthy volunteer, men or women, aged 18 to 50 years old without lumbar pathology. * Volunteer beneficiary of a social security scheme. * Volunteer informed about the study and having co-signed a consent form to participate to the study with the investigator Exclusion Criteria: * Protected persons * Pregnant or breastfeeding women * Persons deprived of freedom, hospitalised without consent, hospitalised with other ends then research. * Adults under legal protection (protection of vulnerable adults) or not able to express consent. * Persons showing gait difficulties (test on treadmill) or with neurological/joint pathologies promoting falls (Parkinson, hemiplegia, …) * Patient seen by a doctor for lumbar pain in the 2 months prior to the inclusion. * Patient suffering from scoliosis * Refusal of consent * Contraindication to MRI * Patient carrying an internal electronic device (pacemaker, neurostimulator, insulin pump…) * Patient with known allergies to one of the product components (e.g. latex) * During the first MRI, volunteers showing prior signs of lower back pain or discopathy will be excluded.