Vergara M, Page A
Departamento de Tecnología, Universitat Jaume I, Castellón, Spain.
Appl Ergon. 2000 Jun;31(3):247-54. doi: 10.1016/s0003-6870(99)00056-3.
This paper presents an inexpensive and simple system to measure the way of use of the backrest. The system can be also used in field studies. It is based on a set of electrodes which, attached to the subject's back and the backrest, allows the contact area to be measured. A laboratory test was performed to validate the system. In the test the spontaneous use of the backrest in standard office chairs and tasks was studied. Four different types of backrest use have been detected, and it has been shown that they determine the lumbar curvature and pelvic inclination angles, as well as postural mobility. The comfort levels observed in the four types of backrest use were also different. Consequently, the system can be used as an indicator of back posture and comfort.
本文介绍了一种用于测量靠背使用方式的廉价且简单的系统。该系统也可用于实地研究。它基于一组电极，这些电极附着在受试者的背部和靠背上，能够测量接触面积。进行了一项实验室测试以验证该系统。在测试中，研究了标准办公椅上靠背的自然使用情况及相关任务。已检测到四种不同类型的靠背使用方式，并且表明它们决定了腰椎曲率和骨盆倾斜角度以及姿势灵活性。在四种靠背使用方式中观察到的舒适度水平也有所不同。因此，该系统可作为背部姿势和舒适度的指标。
