FABIO MARCON ALFIERI
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- Body temperature of healthy men evaluated by thermography: A study of reproducibility(2018) ALFIERI, Fabio Marcon; BATTISTELLA, Linamara RizzoBACKGROUND: Thermography is a safe, painless, and efficient method for checking the temperature of the skin. OBJECTIVE: Was to assess the pattern of skin temperature of healthy men, as well as to verify the reproducibility of the method. METHODS: This cross-sectional observational study was conducted with 30 men evaluated by thermography in two moments by using an infrared camera (FLIR +T650SC((R))). The skin temperature of 24 regions of interest (ROI) was measured. RESULTS: The mean difference in temperature of 10 ROIs in the two evaluations was not statistically significant. The comparisons of the triangle Tsk between the right and left sides by the two evaluations showed no differences. The intra-class correlation coefficient (ICC) between the two moments of evaluation were statistically significant, where the dorsal measurements (Left forearm and Right dorsal arm) showed poor correlations and the others ranged from moderate to strong. Greater reproducibility was confirmed for ventral and dorsal hand ROIs; however, they presented the highest coefficient of variation (9% and 8%).Conclusion: There is a similarity between the temperatures of the ROIs and the reproducibility in 22 of the 24 ROIs varies from moderate to strong, showing that thermography is a reproducible method in healthy men.
bookPart 0 Citação(ões) na Scopus Body temperature and thermography(2023) ALFIERI, F. M.; OLIVEIRA, N. C. de; BATTISTELLA, L. R.The interest in body temperature comes from the most remote times. It is known that the regulation of body temperature is important for the maintenance of homeostasis, which in turn is vital for the proper functioning of body fluids and tissues. Hypothalamus, located in the central region of the brain, is responsible for maintaining body temperature regulation between 35.5°C to 37.7°. Thermography is a method designed to assess skin surface temperature, able to provide data on the symmetry (or asymmetry) of body hemispheres. This chapter will discuss studies related to the physiology of body temperature, the importance of similar temperature distribution between body hemispheres, and normality patterns of this distribution evaluated by thermography. © 2023 Nova Science Publishers, Inc. All rights reserved.article 0 Citação(ões) na Scopus The concordance study of the portable camera FLIR C5 for detecting asymmetry of skin temperature in patients with stroke sequelae(2023) ALFIERI, F. M.; SANTOS, A. C. A. dos; DIAS, C. da Silva; BATTISTELLA, L. R.BACKGROUND: Low-cost portable infrared cameras are increasingly used for health assessments, especially for investigating the skin temperature of the whole body. However, some of these devices have not yet been tested for agreement with high-resolution cameras. Therefore, the objective of this study was to test the agreement of FLIR C5, a portable infrared thermographic camera, compared to the FLIR T650sc, a high-quality and high-resolution thermographic device, for detecting thermal asymmetry between both sides of the body of patients with motor sequelae after stroke. MATERIALS AND METHODS: This is an observational and cross-sectional study conducted in a physical rehabilitation facility with 14 patients with stroke sequelae. Participants had their temperature simultaneously measured by FLIR T650sc and FLIR C5 infrared thermography cameras and analyzed with the software FLIR Tools®. The temperature difference of each ROI measured by both cameras was compared with Lin's Concordance Correlation Coefficient (rho or ρc) and Bland Altman the limits of agreement (LOA). RESULTS: the temperatures measured by FLIR C5 were lower than those measured by FLIR T650sc, regardless of the region of interest or side (-0.65, SD 1.44). We observed that the general concordance was classified as adequate to excellent (ρc=0.859; 95%CI 0.817-0.901; p<0.001) and that the forearm and leg in the posterior view presented the sites with the best associations between the temperature readings of FLIR C5 and FLIR T650sc. CONCLUSIONS: The temperature asymmetry usually found among patients with stroke sequelae may be assessed by the portable infrared thermographic camera FLIR C5, given its suitable concordance with FLIR T650sc.article 3 Citação(ões) na Scopus Whole-body thermographic assessment of patients with stroke sequelae who report temperature differences between the sides(2022) DIAS, C. da Silva; ALFIERI, F. M.; SANTOS, A. C. A. dos; BATTISTELLA, L. R.BACKGROUND: Among the several changes caused by Cerebral Vascular Accident (CVA or stroke), alterations in skin temperature sensation, especially on the lower extremities, may be onset. Therefore, investigating skin temperature of the whole body of these patients with infra-red thermography might be meaningful. The objective of this study was to assess the whole-body temperature distribution of patients with stroke sequelae who report temperature differences between the sides of the body. MATERIALS AND METHODS: This is an observational and cross-sectional study with 43 patients with stroke sequelae conducted in a physical rehabilitation facility. Participants had their temperature measured by FLIR T650sc infrared thermography camera, and the thermographic images were analyzed with the software FLIR Tools®. Statistical analysis was conducted with Student's T-test for paired samples, and statistical significance was considered if p<0.005, after single-step correction for multiple comparisons. RESULTS: Significant temperature differences were found between both sides of the body in all Regions of Interest (ROIs), especially in the distal areas, as the average temperature difference was as significant as 0.7ºC. CONCLUSIONS: Patients with stroke sequelae who report temperature differences between the sides of the body have lower temperatures on the plegic limb than the contralateral limb. © 2022 European Association of Thermology. All rights reserved.bookPart 0 Citação(ões) na Scopus Thermography in strokes(2023) ALFIERI, F. M.; SANTOS, A. C. A. dos; BATTISTELLA, L. R.Among the consequences of stroke, sensory disorders can affect more than half of patients. One of the consequences is the change in body temperature between the hemibodies that the patients can perceive or neglect. Although this temperature difference has been reported as unpleasant, little is understood or studied. As autonomic disorders are present in patients with stroke, and as thermography can assess body temperature distribution, using this assessment in these patients is feasible. This chapter will address body temperature distribution in patients with and without stroke and the associations between sensorimotor recovery, sensitivity, perception, and body temperature in individuals with stroke sequelae. © 2023 Nova Science Publishers, Inc. All rights reserved.- Superficial temperature and pain tolerance in patients with chronic low back pain(2019) ALFIERI, Fabio Marcon; LIMA, Alessandra Rodrigues Souto; BATTISTELLA, Linamara Rizzo; SILVA, Natalia Cristina de Oliveira Vargas eIntroduction: Low back pain is a common and very prevalent disease and can impose limitations that negatively impact patients. The objective of this study was to verify and compare the association between lumbar superficial temperature and pressure pain tolerance thresholds in individuals with chronic nonspecific low back pain and healthy controls. Methods: This was a cross-sectional observational study involving 38 individuals with nonspecific chronic low back pain and 19 healthy controls. Volunteers underwent thermographic (infrared sensor), pain perception (visual analog scale), and pressure pain tolerance thresholds (algometry) evaluations in the right and left paravertebral muscles and L4-L5 ligament. Results: A lower tolerance to pressure pain was found in patients compared to controls at all evaluated sites (p <= 0.003). Superficial temperature was significantly higher in the sites evaluated in the low back pain group (p < 0.001). In patients with low back pain, pain perception was weakly and inversely correlated with pressure pain tolerance (r = -0.31; p = 0.05) and moderately correlated to the temperature of the evaluated sites (r = 0.51 to 0.59, p <= 0.001). Also, an inverse and weak to moderate association was observed between pressure pain tolerance thresholds and temperature in patients only (r = - 0.36 to -0.49; p <= 0.02). Conclusion: Individuals with low back pain have lower pressure pain tolerance thresholds and higher superficial temperature in the lumbar region when compared to healthy individuals. The associations observed show that the higher the pain perception, the lower the pain tolerance and the higher the superficial temperature in the lumbar region. Also, the higher the temperature, the lower the pain tolerance.
bookPart 0 Citação(ões) na Scopus Postural control and thermography(2023) BRONSTEIN, P. N.; ALFIERI, F. M.; BATTISTELLA, L. R.Effective postural control requires proper functioning and interaction among the sensorimotor and nervous systems. Maintaining an orthostatic posture in tasks that require the body to be erect involves information processing from the visual, vestibular, and somatosensory systems, as well as proprioceptive and cutaneous inputs regarding the contact between the plantar region and the surface. These inputs are integrated and processed by the nervous system, which coordinates neuromuscular responses to stabilize the center of mass within the base of support to maintain postural orientation and balance. Sensory information from the environment and within the body is critical to detect and correct postural instabilities. The autonomic nervous system regulates body temperature, and thermography provides extremely accurate information about body temperature distribution. Temperature changes captured by thermography may suggest possible regional modifications of muscles blood perfusion, which are mainly responsible for maintaining postural control. Therefore, combining postural assessment with thermography can provide a more comprehensive view of the patient's condition. This chapter aims to review studies that have conducted postural assessment in combination with thermography to verify the correlation between these two assessments. By analyzing these studies, we aim to understand the potential benefits of using thermography as an additional tool for evaluating postural control. © 2023 Nova Science Publishers, Inc. All rights reserved.bookPart 0 Citação(ões) na Scopus Thermography in musculoskeletal diseases(2023) OLIVEIRA, N. C. de; ALFIERI, F. M.; BATTISTELLA, L. R.The progression of the studies in the field of thermography has been contributing to the employment of this technique for the investigation of clinical conditions where pain is present. Examples include chronic musculoskeletal disorders, and the most prevalent ones are osteoarthritis and low back pain. Osteoarthritis is an important cause of pain and disability among patients. Chronic low back pain, in turn, affects 80% of the population at least in some period of life. As the prevalence of these diseases tends to grow, they constitute a public health issue worldwide. In this scenario, thermography arises as a method that can provide a better understanding of these diseases. Hence, this chapter discusses the distribution of body temperature in these diseases, as well as the pathophysiology regarding body temperature and its relationship with pain. © 2023 Nova Science Publishers, Inc. All rights reserved.