a School of Public Health & Department of Bioengineering , University of California Berkeley , Berkeley , CA , USA.
Ergonomics. 2013;56(9):1363-75. doi: 10.1080/00140139.2013.820844. Epub 2013 Aug 2.
The purpose of this study was to evaluate tablet size (weight), orientation, grip shape, texture and stylus shape on productivity, biomechanics and subjective usability and fatigue when the tablet was held with just the left hand. A total of 15 male and 15 female subjects, ages 16-64 years, tested eight tablets and three styluses. Overall, the usability, fatigue and biomechanical evaluation of tablet design features supported the use of smaller to medium-sized tablets, with a ledge or handle shape on the back and surfaced with a rubberised texture. Larger, heavier tablets had significantly worse usability and biomechanics and their use with one hand should be limited. The stylus with a tapered grip (7.5-9.5 mm) or larger grip (7.6 mm) had better usability and biomechanics than one with a smaller grip (5 mm). There were no significant differences in productivity between design features. These design parameters may be important when designing tablets.
Different tablet and stylus design features were evaluated for usability and biomechanical properties. On the basis of short-term tasks, emulating functional tablets, usability was improved with the smaller and medium-sized tablets, portrait (vs. landscape) orientation, a back ledge grip and rubberised texture. There were no differences in productivity between design features.
本研究旨在评估平板电脑的尺寸（重量）、方向、握持形状、纹理和手写笔形状对仅用左手握持平板电脑时的工作效率、生物力学和主观易用性及疲劳的影响。共有 15 名男性和 15 名女性受试者，年龄在 16-64 岁之间，测试了 8 种平板电脑和 3 种手写笔。总体而言，平板电脑设计特征的易用性、疲劳和生物力学评估支持使用较小至中等尺寸的平板电脑，背面带有边缘或手柄形状，并带有橡胶纹理。较大、较重的平板电脑在易用性和生物力学方面明显较差，应限制单手使用。握把直径为 7.5-9.5 毫米或更大的（7.6 毫米）的锥形握把手写笔在易用性和生物力学方面优于握把直径较小（5 毫米）的手写笔。不同设计特征之间的工作效率没有显著差异。这些设计参数在设计平板电脑时可能很重要。
评估了不同的平板电脑和手写笔设计特征的易用性和生物力学性能。基于短期任务，模仿功能性平板电脑，使用较小和中等尺寸的平板电脑、纵向（而不是横向）方向、背面边缘握持和橡胶纹理，可提高易用性。不同设计特征之间的工作效率没有差异。
