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Characterization of posture and comfort in laptop users in non-desk settings

机译：在非办公桌环境中表征笔记本电脑用户的姿势和舒适度

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Laptop computers may be used in a variety of postures not coupled to the office workstation. Using passive motion analysis, this study examined mean joint angles during a short typing/editing task in college students (n = 20), in up to seven positions. Comfort was assessed after task execution through a body map. For three required postures, joint angles in a prone posture were different than those while seated at a couch with feet either on floor or on ottoman. Specifically, the prone posture was characterized by comparatively non-neutral shoulders, elbows and wrists, and pronounced neck extension. Significantly greater intensity and more regions of discomfort were marked for the prone posture than for the seated postures. It is recommended that the prone posture only be assumed briefly during laptop use. Exposure to laptops outside of the office setting should be assessed in future epidemiologic studies of musculoskeletal complaints and computer use.
机译：膝上型计算机可以以未耦合到办公室工作站的各种姿势使用。使用被动运动分析，该研究在大学生（n = 20）的最多七个位置中检查了短打字/编辑任务期间的平均关节角度。在执行任务后通过人体图评估舒适度。对于三种所需的姿势，俯卧姿势的关节角度与坐在沙发上时脚在地板或脚凳上的姿势不同。具体而言，俯卧姿势的特征是肩膀，肘部和手腕相对不中立，并且颈部明显伸展。与仰卧姿势相比，俯卧姿势的强度和不适区域明显更大。建议仅在使用笔记本电脑时短暂地采取俯卧姿势。在未来的有关骨骼肌肉疾病和计算机使用的流行病学研究中，应评估办公室环境以外使用笔记本电脑的情况。

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