Evaluation of the risk of falling in institution-dwelling elderly: clinical tests versus biomechanical analysis of stepping-up

Valérie Michel-Pellegrino (1, 2) , David Hewson (2) , Michele Drieux , Jacques Duchene (2)

1 CHU Charles Foix [AP-HP]
2 LM2S - Laboratoire Modélisation et Sûreté des Systèmes

Falls in the elderly constitute a major socioeconomic problem for modern healthcare. The aim of the study was to extract biomechanical parameters to indicate balance level and the risk of falling in the elderly. It is a preliminary work as part of the development of a home-test based on force-plate technology. Seven faller and 12 non-faller elderly subjects performed stepped up onto a force-plate. Each subject was tested once per weekday for three weeks. Tinetti, mini mental scale test (MMS) and the geriatric depression scale (GDS) scores were measured before the experimentations. Temporal and ground reaction force parameters were measured. The Tinetti test was not correlated with falls in the following six-month period. In contrast, the biomechanical parameters related to the forces measured at foot-contact and to the durations of the phases of the stepping-up were correlated with fall, as well as with MMS and GDS. These results demonstrated that biomechanical parameters could be used as indicators of balance and risk of fall.

Domaines: Ingénierie biomédicale

Valérie Michel-Pellegrino, David Hewson, Michele Drieux, Jacques Duchene. Evaluation of the risk of falling in institution-dwelling elderly: clinical tests versus biomechanical analysis of stepping-up. 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Aug 2007, Lyon, France. pp.6121-6124, ⟨10.1109/IEMBS.2007.4353746⟩. ⟨hal-02316228⟩