scholarly journals The Use of Thermal Imaging to Evaluate Body Temperature Changes of Athletes During Training and a Study on the Impact of Physiological and Morphological Factors on Skin Temperature

2012 ◽  
Vol 13 (1) ◽  
Author(s):  
Monika Chudecka ◽  
Anna Lubkowska
Keyword(s):  
Body Temperature ◽  
Skin Temperature ◽  
Thermal Imaging ◽  
Temperature Changes ◽  
The Impact

scholarly journals The Impact of Central and Peripheral Cyclooxygenase Enzyme Inhibition on Exercise-Induced Elevations in Core Body Temperature

2017 ◽  
Vol 12 (5) ◽  
pp. 662-667 ◽  
Author(s):  
Matthijs T.W. Veltmeijer ◽  
Dineke Veeneman ◽  
Coen C.C.W. Bongers ◽  
Mihai G. Netea ◽  
Jos W. van der Meer ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Skin Temperature ◽  
Core Body Temperature ◽  
Exercise Tests ◽  
Hypothalamic Temperature ◽  
Set Point ◽  
Exercise Induced ◽  
Core Body ◽  
The Impact

Purpose:Exercise increases core body temperature (TC) due to metabolic heat production. However, the exercise-induced release of inflammatory cytokines including interleukin-6 (IL-6) may also contribute to the rise in TC by increasing the hypothalamic temperature set point. This study investigated whether the exercise-induced increase in TC is partly caused by an altered hypothalamic temperature set point.Methods:Fifteen healthy, active men age 36 ± 14 y were recruited. Subjects performed submaximal treadmill exercise in 3 randomized test conditions: (1) 400 mg ibuprofen and 1000 mg acetaminophen (IBU/APAP), (2) 1000 mg acetaminophen (APAP), and (3) a control condition (CTRL). Acetaminophen and ibuprofen were used to block the effect of IL-6 at a central and peripheral level, respectively. TC, skin temperature, and heart rate were measured continuously during the submaximal exercise tests.Results:Baseline values of TC, skin temperature, and heart rate did not differ across conditions. Serum IL-6 concentrations increased in all 3 conditions. A significantly lower peak TC was observed in IBU/APAP (38.8°C ± 0.4°C) vs CTRL (39.2°C ± 0.5°C, P = .02) but not in APAP (38.9°C ± 0.4°C) vs CTRL. Similarly, a lower ΔTC was observed in IBU/APAP (1.7°C ± 0.3°C) vs CTRL (2.0°C ± 0.5°C, P < .02) but not in APAP (1.7°C ± 0.5°C) vs CTRL. No differences were observed in skin temperature and heart-rate responses across conditions.Conclusions:The combined administration of acetaminophen and ibuprofen resulted in an attenuated increase in TC during exercise compared with a CTRL. This observation suggests that a prostaglandin-E2-induced elevated hypothalamic temperature set point may contribute to the exercise-induced rise in TC.

scholarly journals Infrared Thermal Imaging for Evaluation of Clubfoot After the Ponseti Casting Method—An Exploratory Study

2021 ◽  
Vol 9 ◽  
Author(s):  
Balasankar Ganesan ◽  
Joanne Yip ◽  
Ameersing Luximon ◽  
Paul J. Gibbons ◽  
Alison Chivers ◽  
...  
Keyword(s):  
Skin Temperature ◽  
Infrared Thermography ◽  
Thermal Imaging ◽  
Lateral Side ◽  
Thermal Images ◽  
Temperature Changes ◽  
Surgical Methods ◽  
Before And After ◽  
Significant Temperature ◽  
Casting Pressure

Background: Conservative treatment, Ponseti method, has been considered as a standard method to correct the clubfoot deformity among Orthopedic society. Although the result of conservative methods have been reported with higher success rates than surgical methods, many more problems have been reported due to improper casting, casting pressure or bracing discomfort. Nowadays, infrared thermography (IRT) is widely used as a diagnostic tool to assess musculoskeletal disorders or injuries by detecting temperature abnormalities. Similarly, the foot skin temperature evaluation can be added along with the current subjective evaluation to predict if there is any casting pressure, excessive manipulation, or overcorrections of the foot, and other bracing pressure-related complications.Purpose: The main purpose of this study was to explore the foot skin temperature changes before and after using of manipulation and weekly castings.Methods: This is an explorative study design. Infrared Thermography (IRT), E33 FLIR thermal imaging camera model, was used to collect the thermal images of the clubfoot before and after casting intervention. A total of 120 thermal images (Medial region of the foot–24, Lateral side of the foot–24, Dorsal side of the foot−24, Plantar side of the foot−24, and Heel area of the foot–24) were collected from the selected regions of the clubfoot.Results: The results of univariate statistical analysis showed that significant temperature changes in some regions of the foot after casting, especially, at the 2nd (M = 32.05°C, SD = 0.77, p = 0.05), 3rd (M = 31.61, SD = 1.11; 95% CI: 31.27–31.96; p = 0.00), and 6th week of evaluation on the lateral side of the foot (M = 31.15°C, SD = 1.59; 95% CI: 30.75–31.54, p = 0.000). There was no significant temperature changes throughout the weekly casting in the medial side of the foot. In the heel side of the foot, significant temperature changes were noticed after the third and fourth weeks of casting.Conclusion: This study found that a decreased foot skin temperature on the dorsal and lateral side of the foot at the 6th week of thermography evaluation. The finding of this study suggest that the infrared thermography (IRT) might be useful as an adjunct assessment tool to evaluate the thermophysiological changes, which can be used to predict the complications caused by improper casting, over manipulative or stretching and casting-pressure related complications.

A study of temperature regulation in New Guinea people

1974 ◽  
Vol 268 (893) ◽  
pp. 375-391 ◽  
Keyword(s):  
Body Temperature ◽  
Skin Temperature ◽  
Temperature Regulation ◽  
Coastal Region ◽  
New Guinea ◽  
Young Female ◽  
Adult Males ◽  
Deep Body Temperature ◽  
Temperature Changes ◽  
Deep Body

Body-temperature regulation has been studied in two communities in New Guinea. On Karkar Island in the hotter coastal region, 40 young adult males and the same number of young female villagers, together with 39 plantation workers and 14 Europeans, were examined. At Lufa, near Goroka, in the cooler and drier highlands, 30 male and 25 female adult villagers, together with 36 older people, were investigated. Tem perature regulation was studied using an air-conditioned bed in which the subjects received standardized exposures to cool and warm environments and the sweating response was measured during controlled hyperthermia at 38 °C. The results did not reveal any important difference in response between the coastal villagers and the highland people. The Europeans living on Karkar Island had the high sweating capacity which is characteristic of the acclimatized European, whereas the sweat rates of the New Guinea people were closely comparable to the level for an unacclimatized European. Comparison of the two sexes showed the lower sweat rates and the pattern of deep body and skin temperature changes found in women in previous studies using this technique. The changes in deep body temperature, skin temperature, blood flow and heart rate during the successive periods of exposure to a thermally neutral climate, with cooling and during rewarming, do not indicate that the indigenes of New Guinea utilize the vasomotor control mechanism more efficiently than Europeans.

scholarly journals The effect of pleasant touch on nose skin temperature, heart rate and heart rate variability: preliminary results in a male laboratory rhesus monkey

2016 ◽  
Author(s):  
Laura Clara Grandi ◽  
Eugenio L Heinzl
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Body Temperature ◽  
Rhesus Monkey ◽  
Skin Temperature ◽  
Animal Studies ◽  
The Body ◽  
Temperature Changes ◽  
Preliminary Results ◽  
Starting Point

Human and animal studies emphasize the importance of affiliative touch among conspecifics, both from the behavioral and physiological perspectives. Among non-human primates, allogrooming, and in particular the pleasant sweeping motion occurring during it, could be considered analogous to human social affiliative touch. Despite the evidences of the effects of affiliative touch in terms of heart rate (HR) and heart rate variability (HRV), both in humans and non-human primates, the physiological consequences have never been investigated in respect to the body temperature changes through infrared thermography (IRT). The aim of the present study was to investigate for the first time in a male rhesus monkey, the physiological effects of sweeping the back at different speeds in terms of nose skin temperature changes, and to explore the possible relationship with the HR and HRV. The preliminary results underline that sweeping the back at a speed of 5–10 cm/sec determined an increment of the nose skin temperature and HRV, together with a decrement of the HR. These preliminary data represent the first evidence of the body temperature changes manifesting during affiliative touch at the speed of 5–10 cm/sec in non-human primates and the existence of a possible relationship among the body temperature, HR and HRV. This study represents an important starting point in order to investigate the affiliative pleasant social touch by means of non-invasive techniques (e.g. the IRT), and to deeply examine the correlation between body temperature and cardiac changes, both in humans and non-human primates.

scholarly journals The effect of constitutive pigmentation on the measured emissivity of human skin

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0241843
Author(s):  
Matthew Charlton ◽  
Sophie A. Stanley ◽  
Zoë Whitman ◽  
Victoria Wenn ◽  
Timothy J. Coats ◽  
...  
Keyword(s):  
Body Temperature ◽  
Skin Temperature ◽  
Human Skin ◽  
Thermal Imaging ◽  
Infrared Imaging ◽  
Skin Pigmentation ◽  
Thermal Infrared ◽  
Reflectance Spectrophotometry ◽  
Thermal Infrared Imaging ◽  
Thermal Emissivity

Background The measurement of body temperature has become commonplace in the current COVID-19 pandemic. Body temperature can be measured using thermal infrared imaging, a safe, non-contact method that relies on the emissivity of the skin being known to provide accurate readings. Skin pigmentation affects the absorption of visible light and enables us to see variations in skin colour. Pigmentation may also affect the absorption of infrared radiation and thus affect thermal imaging. Human skin has an accepted emissivity of 0.98 but the effect of different skin pigmentation on this value is not known. In this study, we investigated the influence of different skin pigmentation on thermal emissivity in 65 adult volunteers. Methods A reference object of known emissivity (electrical tape) was applied to participant’s skin on the inner upper arm. Tape and arm were imaged simultaneously using a thermal infrared camera. The emissivity was set on the camera to the known value for electrical tape. The emissivity was altered manually until the skin temperature using thermal imaging software was equal to the initial tape temperature. This provided the calculated emissivity value of the skin. Participants were grouped according to skin pigmentation, quantified using the Fitzpatrick skin phototyping scale and reflectance spectrophotometry. Differences in emissivity values between skin pigmentation groups were assessed by one-way ANOVA. Results The mean calculated emissivity for the 65 participants was 0.972 (range 0.96–0.99). No significant differences in emissivity were observed between participants when grouped by skin pigmentation according to the Fitzpatrick scale (p = 0.859) or reflectance spectrophotometry (p = 0.346). Conclusion These data suggest that skin pigmentation does not affect thermal emissivity measurement of skin temperature using thermal infrared imaging. This study will aid further research into the application of thermal infrared imaging as a screening or bedside diagnostic tool in clinical practice.

Alcohol and respiratory and body temperature changes during tepid water immersion

1978 ◽  
Vol 44 (5) ◽  
pp. 683-689 ◽  
Author(s):  
S. Martin ◽  
K. E. Cooper
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Skin Temperature ◽  
Water Immersion ◽  
Gas Liquid Chromatography ◽  
Blood Alcohol ◽  
Temperature Changes ◽  
Tepid Water ◽  
Surface Skin Temperature ◽  
End Tidal

Resting subjects were immersed for 30 min in water at 22 and 30 degrees C after drinking alcohol. Total ventilation, end-tidal PCO2, rectal temperature, aural temperature, mean skin temperature, heart rate, and oxygen consumption were recorded during the experiments. Blood samples taken before the immersion period were analyzed by gas-liquid chromatography. The mean blood alcohol levels were 82.50 +/- 9.93 mg.(100 ml)-1 and 100.6 +/- 12.64 mg (100 ml)-1 for the immersions at 22 and 30 degrees C, respectively. There was no significant change in body temperature measured aurally or rectally, mean surface skin temperature, or heart rate at either water temperature tested. Total expired ventilation was significantly attenuated for the last 15 min of the immersion at 22 degrees C, after alcohol consumption as compared to the ventilation change in water at 22 degrees C without ethanol. This response was not consistently significantly altered during immersion in water at 30 degrees C. It is evident that during a 30-min immersion in tepid water with a high blood alcohol level, body heat loss is not affected but some changes in ventilation do occur.

scholarly journals The Use of Thermal Imaging in the Evaluation of Temperature Effects of Radiotherapy in Patients after Mastectomy—First Study

Sensors ◽  
2021 ◽  
Vol 21 (21) ◽  
pp. 7068
Author(s):  
Agnieszka Baic ◽  
Dominika Plaza ◽  
Barbara Lange ◽  
Marta Reudelsdorf-Ullmann ◽  
Łukasz Michalecki ◽  
...  
Keyword(s):  
Skin Temperature ◽  
Thermal Imaging ◽  
Temperature Effects ◽  
Treatment Temperature ◽  
Advanced Stage ◽  
Temperature Changes ◽  
Imaging Camera ◽  
Temperature Parameter ◽  
Quantitative Analyses ◽  
The Relationship

The aim of the study was to evaluate the temperature parameter of the breast area in patients undergoing radiotherapy at various intervals. The relationship between temperature changes on the patient’s skin and the time after the end of radiotherapy was studied. Measurements with a thermal imaging camera were performed in a group of twelve volunteers. Six of them were healthy women who did not have thermal asymmetry between the breasts, whereas six were diagnosed with breast cancer and underwent mastectomy due to the advanced stage of the disease. The patients were qualified for radiation therapy. Thermographic examinations were performed before treatment, two months later and then six months after the end of the treatment. Temperature differences between the healthy breasts and the treated areas were assessed. Additionally, the correlation between a patient’s skin temperature changes and the time after the end of radiotherapy was analyzed. The highest skin temperature increase (1.47 °C) was observed 6 months after the end of RT compared to the measurement before treatment. It seems that thermovision may bring a new tool for quantitative analyses of the temperature effects of radiotherapy.

P126 Characterization of Skin Temperature Changes in Response to Photobiostimulation Using Thermal Imaging: A Thermo-Anatomical Correlation

2020 ◽  
Vol 25 (Supplement 1) ◽  
pp. S167
Author(s):  
Oshrit Hoffer ◽  
Neta Rabin ◽  
Lilach Gavish ◽  
Moshe Halak ◽  
Ortal Haim ◽  
...  
Keyword(s):  
Skin Temperature ◽  
Thermal Imaging ◽  
Temperature Changes ◽  
Anatomical Correlation

scholarly journals The effect of pleasant touch on nose skin temperature, heart rate and heart rate variability: preliminary results in a male laboratory rhesus monkey

2016 ◽  
Author(s):  
Laura Clara Grandi ◽  
Eugenio L Heinzl
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Body Temperature ◽  
Rhesus Monkey ◽  
Skin Temperature ◽  
Animal Studies ◽  
The Body ◽  
Temperature Changes ◽  
Preliminary Results ◽  
Starting Point

Human and animal studies emphasize the importance of affiliative touch among conspecifics, both from the behavioral and physiological perspectives. Among non-human primates, allogrooming, and in particular the pleasant sweeping motion occurring during it, could be considered analogous to human social affiliative touch. Despite the evidences of the effects of affiliative touch in terms of heart rate (HR) and heart rate variability (HRV), both in humans and non-human primates, the physiological consequences have never been investigated in respect to the body temperature changes through infrared thermography (IRT). The aim of the present study was to investigate for the first time in a male rhesus monkey, the physiological effects of sweeping the back at different speeds in terms of nose skin temperature changes, and to explore the possible relationship with the HR and HRV. The preliminary results underline that sweeping the back at a speed of 5–10 cm/sec determined an increment of the nose skin temperature and HRV, together with a decrement of the HR. These preliminary data represent the first evidence of the body temperature changes manifesting during affiliative touch at the speed of 5–10 cm/sec in non-human primates and the existence of a possible relationship among the body temperature, HR and HRV. This study represents an important starting point in order to investigate the affiliative pleasant social touch by means of non-invasive techniques (e.g. the IRT), and to deeply examine the correlation between body temperature and cardiac changes, both in humans and non-human primates.

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