Validity, Reliability, and Reproducibility of Skin Temperature in Healthy Subjects Using Infrared Thermography

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Abstract Infrared thermography (IRT) is a rapid and noninvasive technology to assess skin temperature (Tsk). The technical improvement and new applications of IRT on humans should be accompanied by results about the reproducibility of IRT measurements in different population groups. In addition, there is a remarkable necessity of a larger supply on software to analyze IRT images of human beings. In the last years, some studies have further investigated the reproducibility of Tsk in patients with different pathologies and also in healthy subjects with different characteristics (young, overweight, active, etc.). Reliability has been also studied between observers and software specialized on the analysis of IRT images of human beings. Despite differences in their methodology among studies, most of them have shown good reproducibility results. However, it has also been proven that the reproducibility of the Tsk measurements slightly decreased with some factors, as the regions of interest (ROI) analyzed and the time between measurements. Regarding reliability results, specific software solutions have been shown as the best option to analyze IRT images.