Falls, especially in the older people, are frequent with potential serious consequences. The strategy for preventing falls involves detecting the fall risk. Current tests to determine the risk of falling are too late indicators of gait disorder. Loss of gait dissociation is an element associated with the mechanism of the fall and appears earlier. Its diagnosis is particularly important as it is a reversible impairment if rehabilitation interventions can be proposed to correct this anomaly.

The purpose of this study is to validate the device's measurement of belt dissociation in a discriminating manner between fallers and nonfallers.

Inclusion Criteria:

• Informed and signed a written consent form.
• Affiliated or eligible to a health insurance system.
• Being able to give their consent to participate.
• For fallers: had at least one fall in the previous year.
• For non fallers: not had a fall in the previous year.

Exclusion Criteria:

• Patients suffering from a neurological or articular pathology responsible for gait disorders (Parkinson's disease, hemiplegia, narrow lumbar canal, peripheral neuropathy, vestibular pathology, chronic inflammatory rheumatism…).
• Patients who have undergone joint surgery of the lower limbs during the year.
• Patients walking with a walker.
• Patients with an internal electronic device (pacemaker, neurostimulator, insulin pump…).
• Patients taking long-term neuroleptics.
• Patients with advanced major cognitive impairment (according to the Clinical Dementia Rating Protocol >1).