Industrial Engineering Department, Tecnológico Nacional de México/I.T Cd. Guzman, Jalisco, México.
Faculty of Engineering, Arquitecture and Design, Autonomous University of Baja California, Ensenada, Mexico.
PLoS One. 2021 May 12;16(5):e0250733. doi: 10.1371/journal.pone.0250733. eCollection 2021.
The monitoring of infrared thermal images is reported to analyze changes in skin temperature in the hand fingers when repetitive work is performed to know which finger has a greater risk of injury, besides, the recovery time is analyzed regarding the initial temperature and its relationship with age, sex, weight, height if practice sports, and Body Mass Index (BMI) per individual. For the above, an experimental test was carried out for 10 minutes on a repetitive operation that takes place in the telecommunications industry and 39 subjects participated in which an infrared thermal image of the dorsal and palmar part of both hands was taken in periods of 5 minutes after the 10-minute test has elapsed. The results show that none of the participants recovered their initial temperature after 10 minutes of the experimental test. In addition, it was found that there is a relationship between skin temperature and sex, and that age influences the recovery of temperature. On the other hand, the thumb, index, and middle fingers have a higher risk of injury in the analyzed task. It is concluded that performing repetitive work with all the fingers of the hand does not show that all they have the same risk of injury, besides that, not all the variables studied affect the recovery of temperature and its behavior.
红外热图像监测被报道用于分析手指皮肤温度在重复工作时的变化，以了解哪个手指受伤的风险更大，此外，还分析了初始温度及其与年龄、性别、体重、身高（如果进行体育锻炼）和个体体重指数（BMI）的关系。为此，对电信行业中进行的重复操作进行了 10 分钟的实验测试，有 39 名参与者在 10 分钟的测试结束后每隔 5 分钟接受一次双手背侧和掌侧的红外热图像。结果表明，在实验测试 10 分钟后，没有参与者恢复到初始温度。此外，还发现皮肤温度与性别之间存在关系，年龄会影响温度的恢复。另一方面，在分析的任务中，拇指、食指和中指受伤的风险更高。结论是，用手的所有手指进行重复工作并不表明它们都有相同的受伤风险，此外，并非所有研究的变量都会影响温度的恢复及其行为。
