Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key Operations
Greater 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 photogra...
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doaj-e96280ae25b44752a58107056f87efef2020-11-27T08:02:31ZengMDPI AGApplied Sciences2076-34172020-11-01108374837410.3390/app10238374Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key OperationsYounggeun Choi0Xiaopeng Yang1Jangwoon Park2Wonsup Lee3Heecheon You4Department of Industrial and Management Engineering, Pohang University of Science and Technology, Pohang 37673, KoreaSchool of Artificial Intelligence and Computer Science, Jiangnan University, Wuxi 214122, ChinaDepartment of Engineering, Texas A&M University–Corpus Christi, Corpus Christi, TX 78412, USASchool of Global Entrepreneurship and Information Communication Technology, Handong Global University, Pohang 37554, KoreaDepartment of Industrial and Management Engineering, Pohang University of Science and Technology, Pohang 37673, KoreaGreater 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.https://www.mdpi.com/2076-3417/10/23/8374smartphonehard key locationgrip postureposture encodingfrequency analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Younggeun Choi Xiaopeng Yang Jangwoon Park Wonsup Lee Heecheon You |
spellingShingle |
Younggeun Choi Xiaopeng Yang Jangwoon Park Wonsup Lee Heecheon You Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key Operations Applied Sciences smartphone hard key location grip posture posture encoding frequency analysis |
author_facet |
Younggeun Choi Xiaopeng Yang Jangwoon Park Wonsup Lee Heecheon You |
author_sort |
Younggeun Choi |
title |
Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key Operations |
title_short |
Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key Operations |
title_full |
Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key Operations |
title_fullStr |
Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key Operations |
title_full_unstemmed |
Effects of Smartphone Size and Hand Size on Grip Posture in One-Handed Hard Key Operations |
title_sort |
effects of smartphone size and hand size on grip posture in one-handed hard key operations |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2020-11-01 |
description |
Greater 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. |
topic |
smartphone hard key location grip posture posture encoding frequency analysis |
url |
https://www.mdpi.com/2076-3417/10/23/8374 |
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