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Interaction Options for Wearables and Smart-Devices While Walking

: Conradi, J.; Westhoven, M.; Alexander, T.


Bagnara, Sebastiano (Ed.) ; International Ergonomics Association -IEA-:
20th Congress of the International Ergonomics Association, IEA 2018. Proceedings. Vol.V: Human Simulation and Virtual Environments, Work With Computing Systems (WWCS), Process Control : August 26-30, 2018, Florence, Italy
Cham: Springer International Publishing, 2019 (Advances in Intelligent Systems and Computing 822)
ISBN: 978-3-319-96077-7
ISBN: 978-3-319-96076-0
ISBN: 978-3-319-96078-4
International Ergonomics Association (IEA Congress) <20, 2018, Florence>
Fraunhofer FKIE ()

Using smartphones and wearables in parallel activities, e. g. while walking, is a widespread phenomenon. In different individuals we furthermore find different interaction styles which involve one or both hands. To study the effects of different interaction styles, we carried out a study involving three different interaction styles for touch-sensitive devices compared to a HMD operated by an additional controller providing passive haptic feedback. The experimental task was carried out while walking on a treadmill. In addition to the primary task of using the interaction device, a secondary task was administered which competed for the participants' visual attention. We found an impact of the different interaction styles on the input performance: Time on task proved to be faster with the HMD combined with a haptic input device, but error count increased significantly as well. Using the thumb for input resulted in a longer overall time during which the visual attention was focused on the interaction device.