Temperature behavior repetitive movements
Description
Study related to the temperature behavior of operators who work with repetitive movements in order to know how their hands recover after performing their work activities. The temperatures recorded are the maximum and minimum temperatures on the back and palm of the hand and on the back. Demographic data and vital and somatometric signs are observed.
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Participant Management Before starting the images, the participant was checked to ensure that she complied with the established restrictions in order to be able to continue with the process. The menstrual cycle was also considered; that is, if the participant was on her period, thermal imaging did not continue. No cases were presented. The images were taken on a black chair to which a black laminated wooden board was attached, on which the participant had to place her hands. In each session, the operator was asked to stand behind the chair, avoiding touching the board, as the marks on the board distort the thermal images. The board was marked with tape to guide the participant in placing her hands, as shown in Figure 3. The first shot was taken on the back of the hand and then on the palms. The series of thermal images were taken for 5-minute spacing (see Figure 4 or Figure 3), starting times 5, 10, 15, and 20 minutes (based on Vardasca, R., E. Francis, J. Ring, P. Plassmann, C.D. Jones, and J. Gabriel [32] and Garcia, A. [33]). Once the capture was done, the operator waited in another chair while the 5-minute pause elapsed, and so on, until four pairs of shots were obtained. Thermal imaging was per-formed Monday through Thursday from 10 am to 1 pm. In this way, 3 participants per day were obtained. 6 Temperature measurements The IR image was delimited according to the ROI to measure the temperature in that area. Then, the Results option was activated to display the temperature values of maximum, minimum, max-min, and average Thermogram analysis Next, the data were exported to Excel to organize and group according to the times the temperatures were recorded (5', 10', 15', and 20'). Afterward, the tempera-ture differences were calculated for the minimum and maximum values of the tem-perature captured by the thermographic camera. After that, the thermal asymmetries that could represent a possible injury were identified and classified in their levels of alarm and severity, as established by Sillero-Quintana et al. [34] and as shown in Table 1. Scale the attention level given according to differences in temperatures between the body ROI (body region of interest) against laterals or between two shots of the same ROI.
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Funding
Consejo Nacional de Ciencia y Tecnología
I1200/331/2023