Mobile Phone Use Behaviors and Postures on Public Transportation Systems.
Mobile Phone Use Behaviors and Postures on Public Transportation Systems.
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DOI：
10.1371/journal.pone.0148419
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Hwang YH
中科院分区：
文献类型：
--
作者：
Liang HW;Hwang YH
手机在我们的日常生活中很常见，但用户对姿势或屏幕操作风格的偏好尚未得到研究。这是一项横断面观察性研究。本研究随机选取台北市都市捷运系统中使用手机的乘客。使用检查表观察他们坐着或站着时的身体姿势和屏幕操作方式。结果，从400次旅行中观察了1,230名受试者。总的来说，在所有坐着的乘客中，41%的人在使用手机。大多数的任务是用手机纵向浏览（93%），占84%。不同手握/操作是坐着时最常用的操作方式（46%），而同手握/操作是站着时最常用的操作方式（46%）。在不同性别和年龄组中，坐着的人与站着的人的屏幕操作方式分布有显著差异。坐着时最常见的姿势是把躯干靠在靠背上，脚放在地板上，有或没有手臂支撑（58%）。至于站着的用户，双手组和不同手组有很高比例的人手臂没有支撑，脚在地板上，他们的躯干要么有支撑，要么没有支撑。相比之下，同手组的人往往没有支撑躯干，拿着一根杆子或手带，双脚在地板上。需要进一步研究这些常用姿势和操作方式的人体工程学暴露特征，我们的结果将有助于指导实验室设置实验条件的选择。
Mobile phones are common in our daily life, but the users’ preferences for postures or screen operating styles have not been studied. This was a cross-sectional and observational study. We randomly sampled passengers who used mobile phones on the Mass Rapid Transit (MRT) system in metropolitan Taipei. A checklist was used to observe their body postures and screen operating styles while sitting or standing. As a result, 1,230 subjects from 400 trips were observed. Overall, of all the passengers who were sitting, 41% of them were using mobile phones. The majority of the tasks involved browsing (84%) with their phones in a portrait orientation (93%). Different-hand holding/operating was the most commonly used operating style while sitting (46%) and same-hand holding/operating was the most common while standing (46%). The distribution of screen operating styles was significantly different for those sitting than for those standing and for different genders and age groups. The most frequently observed postures while sitting were having one’s trunk against a backrest, feet on the floor and with or without an arm supported (58%). As for the users who were standing, the both- and different-hands groups had a high proportion of arms unsupported, feet on the floor and either their trunk supported or not. In contrast, the same-hand group tended to have their trunk unsupported, were holding a pole or handstrap and had both feet on floor. Further studies are warranted to characterize the ergonomic exposure of these commonly used postures and operating styles, and our results will help guide the selection of experimental conditions for laboratory settings.