Consumed endurance: a metric to quantify arm fatigue of mid-air interactions

@article{HincapiRamos2014ConsumedEA,
  title={Consumed endurance: a metric to quantify arm fatigue of mid-air interactions},
  author={Juan David Hincapi{\'e}-Ramos and Xiang Guo and Paymahn Moghadasian and Pourang Irani},
  journal={Proceedings of the SIGCHI Conference on Human Factors in Computing Systems},
  year={2014}
}
Mid-air interactions are prone to fatigue and lead to a feeling of heaviness in the upper limbs, a condition casually termed as the gorilla-arm effect. Designers have often associated limitations of their mid-air interactions with arm fatigue, but do not possess a quantitative method to assess and therefore mitigate it. In this paper we propose a novel metric, Consumed Endurance (CE), derived from the biomechanical structure of the upper arm and aimed at characterizing the gorilla-arm effect… 
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