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TitleIdentifying finger postures when interacting with the touch screen of mobile devices
Author(s)Umami, M. K.
Arezes, P.
Sampaio, A. M.
KeywordsFinger posture
Touch screen
Single-handed interaction
Mobile phone
Issue date2015
PublisherSociedade Portuguesa de Segurança e Higiene Ocupacionais (SPOSHO)
CitationUmami, M. K., Arezes, P. M., & Sampaio, A. M. (2015). Identifying Finger Postures when Interacting with the Touch Screen of Mobile Devices. Sho2015: International Symposium on Occupational Safety and Hygiene, 415-417.
Abstract(s)This study presents the results of preliminary test on the interaction between fingertip and touch screen. The objective of this study is to identify the fingertip posture when interacting with touch screen devices. Ten participants, 7 males and 3 females, participated in this study. The participants were asked to touch targets on the mobile devices screen by tapping them sequentially and connecting them. The participants performed the tasks in a sitting posture. A tablet with 10 inches screen and a mobile phone with 4 inches screen were used in the study. The results showed that all participants dominantly used their thumb to interact with the mobile phone in single and two hands postures. The common thumb posture adopted by the participants is the combination of the 60° pitch and 0° roll angles. While for interaction with tablet in various postures observed in the study, the participants commonly used their index fingers in the combination of 60° pitch and 0° roll angles. This study also observed the participant with long finger nails touched targets on the mobile devices screen by using her index or middle fingers very low pitch.
TypeConference paper
AccessOpen access
Appears in Collections:CGIT - Publicações em actas de encontros científicos / Papers in conference proceedings

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