Effects of smartphone size and hand size on grip posture in one-handed hard key operations

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dc.contributor.authorChoi, Younggeun
dc.contributor.authorYang, Xiaopeng
dc.contributor.authorPark, Jangwoon
dc.contributor.authorLee, Wonsup
dc.creator.orcidhttps://orcid.org/0000-0002-3758-2281en_US
dc.creator.orcidhttps://orcid.org/0000-0002-8094-1251en_US
dc.creator.orcidhttps://orcid.org/0000-0002-3758-2281
dc.creator.orcidhttps://orcid.org/0000-0002-8094-1251
dc.creator.orcidhttps://orcid.org/0000-0002-3758-2281
dc.creator.orcidhttps://orcid.org/0000-0002-8094-1251https://orcid.org/0000-0002-3758-2281
dc.creator.orcidhttps://orcid.org/0000-0002-8094-1251
dc.date.accessioned2021-10-21T16:20:27Z
dc.date.available2021-10-21T16:20:27Z
dc.date.issued2020-11-25
dc.description.abstractGreater understanding of the grip postures preferred by users is needed for the ergonomic design of smartphone user interfaces. The present study identifies user-preferred grip postures by smartphone size and hand size in one-handed hard key operations. Grip postures of 45 participants were photographed while major smartphone tasks were simulated in standing with smartphone mockups of nine screen sizes (3.0″–7.0″). The grip postures were encoded by the locations (left side: L, right side: R, top: T, bottom: B, front: F, back: K) of a smartphone and the number of fingers at each contact location. Three grip postures (L3-R1-K1: 70.0%, L4-R1: 13.3%, L3-R1-T1: 12.0%) were found dominant and the distribution of grip posture changed by smartphone size and hand size—the larger the smartphone size or hand size, the higher the frequency of L3-R1-K1. The grip posture frequency distribution by smartphone size would be of use to determine the optimal locations of hard keys on a smartphone of a particular size.en_US
dc.description.abstractGreater understanding of the grip postures preferred by users is needed for the ergonomic design of smartphone user interfaces. The present study identifies user-preferred grip postures by smartphone size and hand size in one-handed hard key operations. Grip postures of 45 participants were photographed while major smartphone tasks were simulated in standing with smartphone mockups of nine screen sizes (3.0″–7.0″). The grip postures were encoded by the locations (left side: L, right side: R, top: T, bottom: B, front: F, back: K) of a smartphone and the number of fingers at each contact location. Three grip postures (L3-R1-K1: 70.0%, L4-R1: 13.3%, L3-R1-T1: 12.0%) were found dominant and the distribution of grip posture changed by smartphone size and hand size—the larger the smartphone size or hand size, the higher the frequency of L3-R1-K1. The grip posture frequency distribution by smartphone size would be of use to determine the optimal locations of hard keys on a smartphone of a particular size.
dc.identifier.citationChoi, Younggeun, et al. "Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key Operations." Applied Sciences 10.23 (2020): 8374.en_US
dc.identifier.citationChoi, Younggeun, et al. "Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key Operations." Applied Sciences 10.23 (2020): 8374.
dc.identifier.doihttps://doi.org/10.3390/app10238374
dc.identifier.urihttps://hdl.handle.net/1969.6/89849
dc.language.isoen_USen_US
dc.language.isoen_US
dc.publisherMDPIen_US
dc.publisherMDPI
dc.rightsAttribution 4.0 International*
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectsmartphoneen_US
dc.subjecthard key locationen_US
dc.subjectgrip postureen_US
dc.subjectposture encodingen_US
dc.subjectfrequency analysisen_US
dc.subjectsmartphone
dc.subjecthard key location
dc.subjectgrip posture
dc.subjectposture encoding
dc.subjectfrequency analysis
dc.titleEffects of smartphone size and hand size on grip posture in one-handed hard key operationsen_US
dc.titleEffects of smartphone size and hand size on grip posture in one-handed hard key operations
dc.typeArticleen_US
dc.typeArticle

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