Movement Analysis for Improving Older Adults' Performances in HCI: Preliminary Analysis of Movements of the Users' Wrists During Tactile Interaction.

In view of the adoption of touchscreen devices by older aged users, it is important to consider the comfort of use from an ergonomic point of view. We implemented an experimental study associating the analysis of the movements and performances of 15 older aged adults (65–84). The task consisted on positioning targets with drag-and-drop interaction on a tablet. Participants were equipped with a motion capture system. In this paper, we present a preliminary analysis of the movements of the users’ wrist, characterized by a predominant radial deviation and extension of this articulation during interaction with their finger. We discuss the impact of the ergonomics of touchscreen interaction on the accessibility of interactive technologies for older people.