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首页> 外文期刊>Applied Ergonomics >Differences in typing forces, muscle activity, comfort, and typing performance among virtual, notebook, and desktop keyboards
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Differences in typing forces, muscle activity, comfort, and typing performance among virtual, notebook, and desktop keyboards

机译：虚拟键盘，笔记本键盘和台式机键盘在打字力，肌肉活动，舒适度和打字性能方面的差异

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摘要

The present study investigated whether there were physical exposure and typing productivity differences between a virtual keyboard with no tactile feedback and two conventional keyboards where key travel and tactile feedback are provided by mechanical switches under the keys. The key size and layout were same across all the keyboards. Typing forces; finger and shoulder muscle activity; self-reported comfort; and typing productivity were measured from 19 subjects while typing on a virtual (0 mm key travel), notebook (1.8 mm key travel), and desktop keyboard (4 mm key travel). When typing on the virtual keyboard, subjects typed with less force (p's < 0.0001) and had lower finger flexor/extensor muscle activity (p's < 0.05). However, the lower typing forces and finger muscle activity came at the expense of a 60% reduction in typing productivity (p < 0.0001), decreased self-reported comfort (p's < 0.0001), and a trend indicating an increase in shoulder muscle activity (p's < 0.10). Therefore, for long typing sessions or when typing productivity is at a premium, conventional keyboards with tactile feedback may be more suitable interface.
机译：本研究调查了在没有触觉反馈的虚拟键盘与两个传统键盘之间是否存在物理暴露和打字效率的差异，两个传统键盘的按键行程和触觉反馈是通过按键下方的机械开关提供的。所有键盘的键大小和布局均相同。打字力量;手指和肩膀的肌肉活动;自我报告的舒适度;在虚拟（0毫米键行程），笔记本（1.8毫米键行程）和台式机键盘（4毫米键行程）上打字时，对19位受试者进行了测量和打字效率的测量。在虚拟键盘上打字时，受试者用较少的力（p's <0.0001）打字并且具有较低的手指屈肌/伸肌活动（p's <0.05）。但是，较低的打字力和手指肌肉活动的代价是打字效率降低60％（p <0.0001），自我报告的舒适度下降（p's <0.0001）和趋势表明肩部肌肉活动增加（ p <0.10）。因此，对于长时间打字会话或打字效率非常高的情况，具有触觉反馈的常规键盘可能是更合适的界面。

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