Department of Industrial Engineering, Tecnológico Nacional de México/IT Ciudad Guzmán, Ciudad Guzman 49100, Mexico.
Faculty of Engineering, Architecture and Design, Universidad Autónoma de Baja California, Ensenada 22860, Mexico.
Int J Environ Res Public Health. 2022 Aug 18;19(16):10240. doi: 10.3390/ijerph191610240.
This article reports a thermal analysis of the wrists to analyze the behavior and recovery of skin temperature after 20 min when performing a highly repetitive movement, and two thermography methods (sensory and infrared) and research groups were compared. The tests were carried out with 44 participants who performed a repetitive task for 10 min and integrated into two groups, of which 22 were trained workers from a maquiladora company and were analyzed with sensory thermography, and the other 22 were in the laboratory with infrared thermography with undergraduate students. The study area is the left and right hand, specifically the wrists. The proposed hypothesis is that people with some musculoskeletal problems have a decrease in temperature when starting repetitive tasks and thermal asymmetries, which measurements were recorded at 0, 10, 15, and 20 min after the task was finished. Findings indicate that the temperatures in both wrists behave similarly. The workers reached higher temperatures, and the centigrade degrees of asymmetry difference were also higher. The variable with influence on the temperature was fractured in the arm. After thermally analyzing the temperature behavior between the wrists of both hands, it is concluded that there is an increase in temperature after finishing a repetitive task, and it does not stabilize after 20 min. Both thermography methods observed that the asymmetries are greater than 0.5 °C, detecting the possible pathology of carpal tunnel syndrome.
本文报告了对手腕的热分析，以分析在进行高度重复运动 20 分钟后皮肤温度的行为和恢复情况，并比较了两种热成像方法（感觉和红外）和研究组。测试对象为 44 名参与者，他们进行了 10 分钟的重复任务，并分为两组，其中 22 名为来自装配厂的训练有素的工人，使用感觉热成像进行分析，另外 22 名为实验室的大学生，使用红外热成像。研究区域是左手和右手，特别是手腕。提出的假设是，开始重复任务时，患有某些肌肉骨骼问题的人温度会降低，并且在任务完成后 0、10、15 和 20 分钟时会记录热不对称性测量值。研究结果表明，两只手腕的温度表现相似。工人的温度更高，摄氏度的不对称差异也更高。手臂上的变量对温度有影响。在手的两个手腕之间进行温度行为的热分析后，得出结论，完成重复任务后温度会升高，20 分钟后不会稳定。两种热成像方法都观察到不对称性大于 0.5°C，检测到手腕隧道综合征的可能病理。
