Elderly fallers enhance dynamic stability through anticipatory postural adjustments during a choice stepping reaction time

Romain Tisserand (1) , Thomas Robert (1) , Pascal Chabaud (2) , Marc Bonnefoy , Laurence Cheze (1)

1 LBMC UMR T9406 - Laboratoire de Biomécanique et Mécanique des Chocs
2 LIBM - Laboratoire Interuniversitaire de Biologie de la Motricité

In the case of disequilibrium, stepping is a natural, effective and privileged strategy to recover balance. The capacity to step quickly is thus critical to avoid falling, in particular for elderly. It can be simply assessed through the choice stepping reaction time test (CSRT), where elderly fallers (F) need more time than elderly non - fallers (NF). However, reasons for this result remain unclear. To answer this, we investigated the characteristics of anticipated postural adjustments (APA) developed by elderly F in a CSRT context and their consequences on the dynamic stability.

Mots clés: FALL; CHUTE

Mots clés: EQUILIBRE

Domaines: Biomécanique [physics.med-ph]

Romain Tisserand, Thomas Robert, Pascal Chabaud, Marc Bonnefoy, Laurence Cheze. Elderly fallers enhance dynamic stability through anticipatory postural adjustments during a choice stepping reaction time. 2017 ISPGR World Congress, Jun 2017, FORT LAUDERDALE, United States. 3 p. ⟨hal-01791319⟩