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Introducing postural variability improves the distribution of muscular loads during mid-air gestural interaction

Abstract : Only time will tell if motion-controlled systems are the future of gaming and other industries and if mid-air gestural input will eventually offer a more intuitive way to play games and interact with computers. Whatever the eventual outcome, it is necessary to assess the ergonomics of mid-air input metaphors and propose design guidelines which will guarantee their safe use in the long run. This paper presents an ergonomic study showing how to mitigate the muscular strain induced by prolonged mid-air gesture interaction by encouraging postural shifts during the interaction. A quantitative and qualitative user study involving 30 subjects validates the setup. The simulated musculo-skeletal load values support our hypothesis and show a statistically significant 19% decrease in average muscle loads on the shoulder, neck, and back area in the modified condition compared to the baseline.
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Submitted on : Wednesday, October 20, 2021 - 4:44:03 PM
Last modification on : Wednesday, November 3, 2021 - 4:43:29 AM

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Fabrizio Nunnari, Myroslav Bachynskyi, Alexis Heloir. Introducing postural variability improves the distribution of muscular loads during mid-air gestural interaction. MIG '16: Proceedings of the 9th International Conference on Motion in Games, Oct 2016, Burlingame California, United States. pp.155-160, ⟨10.1145/2994258.2994278⟩. ⟨hal-03388886⟩

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