Authors: 
Adalberto L. Simeone, Eduardo Velloso, Jason Alexander, Hans Gellersen
Abstract: 
In this paper we present an exploratory work on the use of foot movements to support fundamental 3D interaction tasks. We describe the interaction space of foot movements in a seated position and propose applications for such techniques in three-dimensional navigation, selection, manipulation and system control tasks in a 3D modelling context. We explore these applications in a user study and discuss the advantages and disadvantages of this modality for 3D UIs.