Interaction in 4-second bursts: the fragmented nature of attentional resources in mobile HCI
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
An empirical comparison of use-in-motion evaluation scenarios for mobile computing devices
International Journal of Human-Computer Studies
How do people tap when walking? An empirical investigation of nomadic data entry
International Journal of Human-Computer Studies
Getting off the treadmill: evaluating walking user interfaces for mobile devices in public spaces
Proceedings of the 10th international conference on Human computer interaction with mobile devices and services
Investigating selection and reading performance on a mobile phone while walking
Proceedings of the 12th international conference on Human computer interaction with mobile devices and services
Ease of juggling: studying the effects of manual multitasking
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The effects of walking speed on target acquisition on a touchscreen interface
Proceedings of the 13th International Conference on Human Computer Interaction with Mobile Devices and Services
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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The effects of encumbrance (holding cumbersome objects while using mobile devices) have received little attention when examining mobile interactions. People often carry items while on the move and use their mobile devices at the same time, causing interaction problems. The study presented is part of an on-going project examining the relationship between encumbrance and walking speed and the impact the relationship has on targeting performance on a touchscreen mobile phone. We also compare two evaluation techniques used in mobile studies: 1)walking on a treadmill and 2)walking on the ground and found a drop in preferred walking speed (PWS) of 27% on the treadmill. The results show that when users walked on the ground at a fixed PWS, targeting error increased as much as 112% compared to standing still when holding a bag in the dominant hand.