The prevalence of walking disorders in the elderly is high. These can lead to falls which represent a major public health issue in terms of hospitalization, morbidity and cost. Numerous studies analyzing the link between spatio-temporal parameters of gait and fall have already been carried out, but most have been carried out in a population of elderly patients living at home and having no or few comorbidities. Very few studies have been carried out in a population of frail elderly people, with multiple comorbidities or multiple medication, which is the case with most patients hospitalized in acute geriatrics.

The objective of the study is to evaluate the spatio-temporal parameters of walking using the GAITRite® mat in patients hospitalized in acute geriatrics and to compare them between a population of falling patients and a population of patients. no faller.

Inclusion criteria:

• Subject aged > 70 years
• Have been hospitalized in an acute geriatric ward at the University Hospitals of Strasbourg between 01/06/2019 and 28/02/2020
• Have been able to walk on a square surface at least 12 meters long, with or without technical assistance
• Subject not having expressed, after being informed, his opposition to the reuse of his medical data for scientific research purposes.

Exclusion criteria:

• Subject having expressed opposition to participating in the study
• Non-autonomous subject for transfers and trips
• Subject under guardianship, curatorship or safeguard of justice

Subject aged > 70 years have been hospitalized in an acute geriatric ward at the University Hospitals of Strasbourg between 01/06/2019 and 28/02/2020 and ave been able to walk on a square surface at least 12 meters long, with or without technical assistance