Werth Abigail, Babski-Reeves Kari
Department of Industrial and Systems Engineering, Mississippi State University, PO Box 9542, Mississippi State, MS 39762 USA.
Department of Industrial and Systems Engineering, Mississippi State University, PO Box 9542, Mississippi State, MS 39762 USA.
Appl Ergon. 2014 Nov;45(6):1603-9. doi: 10.1016/j.apergo.2014.05.008. Epub 2014 Jun 13.
Very little research exists on ergonomic exposures when using portable computing devices. This study quantified muscle activity (forearm and neck), posture (wrist, forearm and neck), and performance (gross typing speed and error rates) differences across three portable computing devices (laptop, netbook, and slate computer) and two work settings (desk and computer) during data entry tasks. Twelve participants completed test sessions on a single computer using a test-rest-test protocol (30min of work at one work setting, 15min of rest, 30min of work at the other work setting). The slate computer resulted in significantly more non-neutral wrist, elbow and neck postures, particularly when working on the sofa. Performance on the slate computer was four times less than that of the other computers, though lower muscle activity levels were also found. Potential or injury or illness may be elevated when working on smaller, portable computers in non-traditional work settings.
关于使用便携式计算设备时的人体工程学暴露的研究非常少。本研究量化了在数据录入任务期间，三种便携式计算设备（笔记本电脑、上网本和平板电脑）和两种工作环境（办公桌和沙发）下的肌肉活动（前臂和颈部）、姿势（手腕、前臂和颈部）以及性能（总打字速度和错误率）差异。12名参与者使用测试 - 休息 - 测试方案，在一台计算机上完成测试环节（在一种工作环境下工作30分钟，休息15分钟，在另一种工作环境下工作30分钟）。平板电脑导致更多非中立的手腕、肘部和颈部姿势，特别是在沙发上工作时。尽管也发现肌肉活动水平较低，但平板电脑上的性能比其他计算机低四倍。在非传统工作环境中使用较小的便携式计算机工作时，潜在的受伤或患病风险可能会增加。
