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Alterações da temperatura da pele do gastrocnémio medial decorrentes de um exercício isocinético com indução de fadiga

Rossas, Hugo
Fonte: [s.n.] Publicador: [s.n.]
Tipo: Trabalho de Conclusão de Curso
Publicado em //2014 POR
Relevância na Pesquisa
46.17%
Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciado em Fisioterapia; Introdução: Dependendo do tipo de exercício físico, a vascularização cutânea e consequente temperatura da pele apresentam distribuições diferentes durante e após a realização do exercício. Objetivo: descrever a variação da temperatura da pele durante e após um exercício de carga máxima com indução de fadiga. Metodologia: foi utilizado um dinamómetro isocinético para aplicação do exercício com indução de fadiga e simultaneamente foi recolhida a temperatura da pele do gastrocnémio medial durante o exercício, imediatamente após e ao longo dos 10 minutos seguintes, através da utilização de uma câmara termográfica. Resultados: verificou-se que ao longo de todo do exercício a temperatura da pele diminuiu constantemente e na fase de repouso aumentou gradualmente, atingindo o pico máximo de 32,99 °C no 7º minuto de repouso, e revelou tendência para diminuir a partir desse ponto. Verificou-se ainda uma correlação forte entre o trabalho total realizado e os valores de temperatura da pele obtidos a partir do 8º minuto de repouso. Conclusão: a temperatura da pele diminui durante toda a realização deste tipo de exercício e na fase de repouso aumenta durante algum tempo...

The Thermal Effects of Therapeutic Lasers with 810 and 904 nm Wavelengths on Human Skin

JOENSEN, Jon; DEMMINK, Jan Hendrik; JOHNSON, Mark I.; IVERSEN, Vegard V.; LOPES-MARTINS, Rodrigo Alvaro Brandao; BJORDAL, Jan Magnus
Fonte: MARY ANN LIEBERT INC Publicador: MARY ANN LIEBERT INC
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
46.21%
Objective: To investigate the effect of therapeutic infrared class 3B laser irradiation on skin temperature in healthy participants of differing skin color, age, and gender. Background: Little is known about the potential thermal effects of Low Level Laser Therapy (LLLT) irradiation on human skin. Methods: Skin temperature was measured in 40 healthy volunteers with a thermographic camera at laser irradiated and control (non-irradiated) areas on the skin. Six irradiation doses (2-12 J) were delivered from a 200mW, 810nm laser and a 60mW, 904nm laser, respectively. Results: Thermal effects of therapeutic LLLT using doses recommended in the World Association for Laser Therapy (WALT) guidelines were insignificant; below 1.5 degrees C in light, medium, and dark skin. When higher irradiation doses were used, the 60mW, 904 nm laser produced significantly (p < 0.01) higher temperatures in dark skin (5.7, SD +/- 1.8 degrees C at 12 J) than in light skin, although no participants requested termination of LLLT. However, irradiation with a 200mW, 810nm laser induced three to six times more heat in dark skin than in the other skin color groups. Eight of 13 participants with dark skin asked for LLLT to be stopped because of uncomfortable heating. The maximal increase in skin temperature was 22.3 degrees C. Conclusions: The thermal effects of LLLT at doses recommended by WALT-guidelines for musculoskeletal and inflammatory conditions are negligible (< 1.5 degrees C) in light...

Thermographic evaluation of hind paw skin temperature and functional recovery of locomotion after sciatic nerve crush in rats

Sacharuk, Viviane Zechlinski; Lovatel, Gisele Agustini; Ilha, Jocemar; Marcuzzo, Simone; Pinho, Alexandre Severo do; Xavier, Leder Leal; Zaro, Milton Antonio; Achaval-Elena, Matilde
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Artigo de Revista Científica Formato: application/pdf
ENG
Relevância na Pesquisa
66.17%
INTRODUCTION: Peripheral nerves are often damaged by direct mechanical injury, diseases, and tumors. The peripheral nerve injuries that result from these conditions can lead to a partial or complete loss of motor, sensory, and autonomic functions, which in turn are related to changes in skin temperature, in the involved segments of the body. The aim of this study was to evaluate the changes in hind paw skin temperature after sciatic nerve crush in rats in an attempt to determine whether changes in skin temperature correlate with the functional recovery of locomotion. METHODS: Wistar rats were divided into three groups: control (n = 7), sham (n = 25), and crush (n = 25). All groups were subjected to thermographic, functional, and histological assessments. RESULTS: DT in the crush group was different from the control and sham groups at the 1st, 3rd and 7rd postoperative days (p,0.05). The functional recovery from the crush group returned to normal values between the 3rd and 4th week post-injury, and morphological analysis of the nerve revealed incomplete regeneration at the 4th week after injury. DISCUSSION: This study is the first demonstration that sciatic nerve crush in rats induces an increase in hind paw skin temperature and that skin temperature changes do not correlate closely with functional recovery.

Transdermal glyceryl trinitrate (nitroglycerin) in healthy persons: acute effects on skin temperature and hemodynamic orthostatic response

Haebisch,Eva Maria Augusta Boeckh
Fonte: Associação Paulista de Medicina - APM Publicador: Associação Paulista de Medicina - APM
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/10/1995 EN
Relevância na Pesquisa
66.13%
In order to find an explanation for individual reactions to transdermal glyceryl trinitrate (GTN) we studied the skin temperature and hemodynamic reactions in 63 healthy persons. The data were obtained before and after the application of GTN and Glycerin (GL) placebo patches, during one hour. The skin temperature was measured on both forearms, the local (left sided) and systemic (right sided) reaction on GTN was related to the skin fold and the calculated body fat content. The bilateral rise of skin temperature and its duration was higher and longer in obese than in lean persons mainly in obese women. The UV induced thermo and the later photothermoreaction (Erythema) was reduced on the left forearm after the application of GTN and GL patches. The observed hemodynamic GTN effect confirmed known postural reactions, such as decreased arterial pressure (ΔmAP = -2.9%), increased heart rate (ΔHR = +7,4%) and QTc prolongation (ΔQTc = +4,9%) in upright position. An adverse drug effect with increased mean blood pressure (ΔmAP = +12%) and increased heart rate (ΔHR = + 10.4%) mainly in supine position was observed in 11 % of the participants, but only in men. Such a reaction was already described by Murell, 1879. Individual GTN effects were analyzed and related to habits and family history. In male smokers and in persons with hypertensive and diabetic close relatives...

Thermographic evaluation of hind paw skin temperature and functional recovery of locomotion after sciatic nerve crush in rats

Sacharuk,Viviane Z.; Lovatel,Gisele A.; Ilha,Jocemar; Marcuzzo,Simone; Pinho,Alexandre Severo do; Xavier,Léder L.; Zaro,Milton A.; Achaval,Matilde
Fonte: Faculdade de Medicina / USP Publicador: Faculdade de Medicina / USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2011 EN
Relevância na Pesquisa
66.17%
INTRODUCTION: Peripheral nerves are often damaged by direct mechanical injury, diseases, and tumors. The peripheral nerve injuries that result from these conditions can lead to a partial or complete loss of motor, sensory, and autonomic functions, which in turn are related to changes in skin temperature, in the involved segments of the body. The aim of this study was to evaluate the changes in hind paw skin temperature after sciatic nerve crush in rats in an attempt to determine whether changes in skin temperature correlate with the functional recovery of locomotion. METHODS: Wistar rats were divided into three groups: control (n = 7), sham (n = 25), and crush (n = 25). All groups were subjected to thermographic, functional, and histological assessments. RESULTS: ΔT in the crush group was different from the control and sham groups at the 1st, 3rd and 7rd postoperative days (p<0.05). The functional recovery from the crush group returned to normal values between the 3rd and 4th week post-injury, and morphological analysis of the nerve revealed incomplete regeneration at the 4th week after injury. DISCUSSION: This study is the first demonstration that sciatic nerve crush in rats induces an increase in hind paw skin temperature and that skin temperature changes do not correlate closely with functional recovery

Immediate effects of upper thoracic manipulation on the skin surface temperature of the vertebral region in healthy women

Packer,Amanda Carine; Dibai-Filho,Almir Vieira; Costa,Ana Cláudia de Souza; Macedo,Aline Barbosa; Bortolazzo,Gustavo Luiz; Rodrigues-Bigaton,Delaine
Fonte: Universidade de São Paulo Publicador: Universidade de São Paulo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/03/2015 EN
Relevância na Pesquisa
56.11%
Manipulation of the spinal column is a manual therapeutic resource characterized by passive thrust of a given joint at a high velocity and low amplitude within the limits of anatomic integrity. The objective of the present study was to assess the immediate effects of upper thoracic manipulation on skin temperature in the vertebral region in healthy women. Thus, a randomized controlled blind trial was realized in the university community. Twenty-six healthy women were randomly allocated into an experimental group (n=13) and a placebo group (n=13). A single session of upper thoracic spine manipulation (segment T3) was performed. Infrared thermography was used to determine changes in skin temperature in the vertebral region. Images were taken prior to, immediately after and both five and 10 minutes after manipulation. Two-way repeated measures analysis of variance with post hoc Bonferroni test was used for inter and intragroup comparisons. The level of significance was set to 5%. No significant differences were found between the different evaluation times in either group (p>0.05). In the intergroup analysis, no statistically significant differences were found in any of the comparisons (p>0.05). Based on the method employed, thoracic spine manipulation of the T3 vertebral segment does not promote changes in skin surface temperature in the region manipulated in asymptomatic individuals.

The non-linear relationship between nerve conduction velocity and skin temperature.

Todnem, K; Knudsen, G; Riise, T; Nyland, H; Aarli, J A
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /04/1989 EN
Relevância na Pesquisa
46.2%
Median motor and sensory nerves were examined in 20 healthy subjects. Superficial stimulating and recording electrodes were used, and the nerves were examined at natural skin temperature, after cooling and after heating of the arm. The conduction velocity for the fastest and slow conducting sensory fibres (temperature range 17-37 degrees C), and for the fastest conducting motor fibres (temperature range 19-38 degrees C) increased non-linearly with increase in skin temperature. Similarly, distal motor latencies increased non-linearly with decrease in skin temperature. The effect of temperature was most pronounced in the low temperature range, and change in conduction velocity per degree centigrade was reduced toward higher skin temperature. Sensory nerve response duration increased linearly with decline in skin temperature. Sensory and motor amplitude did not show any significant relation to skin temperature.

Specific responses of rat raphé neurones to skin temperature.

Dickenson, A H
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /12/1977 EN
Relevância na Pesquisa
46.2%
1. The responses of single neurones in the nuclei raphés magnus, medianus, dorsalis and pontis to changes in skin temperature were recorded in rats anaesthetized with urethane. Skin temperature was altered by means of a water-perfused jacket. 2. Of 210 neurones studied, thirty-five were specifically excited by warming the skin whilst twenty were cold responsive. The greatest proportion of cells responding to skin temperature were in the nucleus raphé magnus, whilst few neurones in the raphé dorsalis and pontis were influenced. 3. The warm units had peak activity at a mean skin temperature of 37.7 degrees C whilst the cold cells had a corresponding maximal rate at 29.0 degreet C. Mechanical and noxious peripheral stimulation, blood pressure changes and temperatures other than that of skin did not affect the neurones. 4. The neurones influenced by skin temperature were histologically verified as being within the raphé system. 5. LSD inhibited all neurones tested, indicating that the cells were serotonergic. 6. The responses to skin temperature were unchanged in rats with midcollicular sections suggesting an ascending thermal system. 7. The results suggest that any involvement of 5-HT in central thermo-regulation is in terms of an afferent thermal pathway mediated by serotonergic raphé neurones.

Fall in skin temperature of exercising man.

Torii, M; Yamasaki, M; Sasaki, T; Nakayama, H
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /03/1992 EN
Relevância na Pesquisa
46.21%
Fall in skin temperature during initial muscular work was investigated in ten healthy men. Bicycle exercise was performed at workloads of 50-150 W in a climatic chamber at ambient temperatures of 10-40 degrees C (relative humidity 45-55%). Skin temperatures at seven or eight points over the body surface were measured using thermography and thermocouple recording systems. Sweat rates were significantly higher at 40 degrees C than at 30 degrees C, whereas the fall in skin temperature was almost equal. The reduction of skin temperature during exercise was the same throughout the year, although sweat rate was significantly higher in summer than in winter. In coloured thermographics of the skin temperature distribution during exercise of both 50 and 150 W at 10 or 20 degrees C, the skin temperature began to decline immediately at the onset of the exercise. Increased work intensities reduced skin temperature. The results suggest that fall in skin temperature during initial exercise was not due to increased evaporative cooling but to vasoconstriction, probably caused by non-thermal factors.

Cooling-Sensitive TRPM8 Is Thermostat of Skin Temperature against Cooling

Tajino, Koji; Hosokawa, Hiroshi; Maegawa, Shingo; Matsumura, Kiyoshi; Dhaka, Ajay; Kobayashi, Shigeo
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 02/03/2011 EN
Relevância na Pesquisa
46.23%
We have shown that cutaneous cooling-sensitive receptors can work as thermostats of skin temperature against cooling. However, molecule of the thermostat is not known. Here, we studied whether cooling-sensitive TRPM8 channels act as thermostats. TRPM8 in HEK293 cells generated output (y) when temperature (T) was below threshold of 28.4°C. Output (y) is given by two equations: At T >28.4°C, y = 0; At T <28.4°C, y  =  -k(T – 28.4°C). These equations show that TRPM8 is directional comparator to elicits output (y) depending on negative value of thermal difference (ΔT  =  T – 28.4°C). If negative ΔT-dependent output of TRPM8 in the skin induces responses to warm the skin for minimizing ΔT recursively, TRPM8 acts as thermostats against cooling. With TRPM8-deficient mice, we explored whether TRPM8 induces responses to warm the skin against cooling. In behavioral regulation, when room temperature was 10°C, TRPM8 induced behavior to move to heated floor (35°C) for warming the sole skin. In autonomic regulation, TRPM8 induced activities of thermogenic brown adipose tissue (BAT) against cooling. When menthol was applied to the whole trunk skin at neutral room temperature (27°C), TRPM8 induced a rise in core temperature...

The effect of skin temperature on performance during a 7.5-km cycling time trial

Levels, Koen; de Koning, Jos J.; Foster, Carl; Daanen, Hein A. M.
Fonte: Springer-Verlag Publicador: Springer-Verlag
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
46.18%
Aerobic exercise performance is seriously compromised in the heat. Possibly, a high skin temperature causes a rating of perceived exertion (RPE)-mediated decrease in exercise intensity. The purpose of this study was to determine the effect of skin temperature on power output during a 7.5-km cycling time trial. Thirteen well-trained male subjects performed a 7.5-km cycling time trial at 15°C and 50% relative humidity (CONTROL), with radiative heat stress during the time trial, and with (PRECOOL) or without (HEAT) precooling. Heat stress was applied by infrared heaters positioned in front of the cycle ergometer between 1.5 and 6.0 km. Skin, rectal, and pill temperature, power output, heart rate, and RPE were measured during the trial. Despite the lower mean skin temperature at the start of the time trial for PRECOOL compared to HEAT (−2.1 ± 0.7°C; P < 0.01) and CONTROL (−1.8 ± 0.6°C; P < 0.05), and a greater increase in mean skin temperature during the heat stress period for PRECOOL (4.5 ± 1.0°C) and HEAT (3.9 ± 0.8°C) than for CONTROL (−0.3 ± 0.6°C; P < 0.01), no differences in power output were found between HEAT (273 ± 45 W) and CONTROL (284 ± 43 W; P = 0.11) and between HEAT and PRECOOL (266 ± 50 W; P = 0.47). Power output during the time trial was greater for CONTROL than for PRECOOL (P < 0.05). Additionally...

Changes of Locoregional Skin Temperature in Neonates Undergoing Laser Needle Acupuncture at the Acupuncture Point Large Intestine 4

Kurath-Koller, Stefan; Litscher, Gerhard; Gross, Anna; Freidl, Thomas; Koestenberger, Martin; Urlesberger, Berndt; Raith, Wolfgang
Fonte: Hindawi Publishing Corporation Publicador: Hindawi Publishing Corporation
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
46.18%
Laser acupuncture bears a potential risk for the skin surface, especially in neonates whose skin has histological and physiological peculiarities. We evaluated thermal changes of skin temperature in neonates during laser acupuncture by using a thermal camera (Flir i5, Flir Systems Inc., Portland, USA). Laserneedles (Laserneedle GmbH, Glienicke/Nordbahn, Germany) were fixed to the skin at Large Intestine 4 (LI 4, Hegu), bilaterally. Before application of laser acupuncture (685 nm, 15 mW, 500 μm), as well as after 1, 5, and 10 min, thermographic pictures of both hands were taken. The measuring was carried out on the 23rd day after birth (20 neonates, mean postmenstrual gestational age 38 + 2, mean weight 2604 g). Compared to the initial temperature of 34.2°C on the right hand, the skin temperature had increased to 35.3°C (P < 0.05) after 5 min and up to 36.1°C (P < 0.05) after 10 min of stimulation. Equally, on the left hand, an increase of the skin temperature from 34.5°C to 35.9°C (P < 0.05) and 35.9°C (P < 0.05) was measured. The highest measured skin temperature after 10 min of stimulation amounted to 38.7°C, without any clinically visible changes on the skin surface.

Einfluss unterschiedlicher Kompressionsstrümpfe auf die Hauttemperatur und die Hautfeuchtigkeit während laufbandergometrischer Belastung; The influence of different compression stockings on the temperature and the moisture of the skin during the strain on a treadmill

Sohns, Andrea
Fonte: Universität Tübingen Publicador: Universität Tübingen
Tipo: Dissertation; info:eu-repo/semantics/doctoralThesis
DE_DE
Relevância na Pesquisa
46.2%
Fragestellung: In der vorliegenden Studie wurde der Einfluss zweier unterschiedlicher konfektionierter Kompressionsstrümpfe auf die folgenden Eigenschaften der Haut am Unterschenkel vor, während und nach einer standardisierten Belastung untersucht: Hauttemperatur, transepidermaler Wasserverlust und Hautfeuchtigkeit. Die Kompressionsprodukte wurden außerdem bezüglich der Aufnahme von Wasser, ihres Anpressdrucks, ihrer Wirksamkeit und des Tragekomforts miteinander verglichen. Material und Methoden: An der Studie nahmen 20 weibliche Patienten mit chronisch venöser Insuffizienz im Stadium I und II nach Widmer teil. Die Patienten wurden an 2 unterschiedlichen Untersuchungstagen laufbandergometrisch bei 12° Steigung und 3 km/h 15 Minuten belastet, wobei ein Bein einen Kompressionsstrumpf trug und das andere unbekleidet blieb. Vor und nach der Belastung wurden der transepidermale Wasserverlust sowie die Hautfeuchtigkeit beider Beine in Höhe des medialen Malleolus und der Wade ermittelt. Während des Laufens wurde die Hauttemperatur der beiden Beine in Höhe des medialen Knöchels und der Verlauf des Anpressdruckes der Kompressionsstrümpfe an 4 Lokalisationen pro Unterschenkel aufgezeichnet. Außerdem wurde die Aufnahme von Wasser in den Kompressionsstrumpf und an einem weiteren Untersuchungstermin mit Hilfe der Quecksilberstreifenplethysmographie die hämodynamische Wirkung der Kompressionsstrümpfe bestimmt. Nach 2-3tägigem Tragen der Kompressionsprodukte wurde ein Fragebogen zum Tragekomfort ausgefüllt. Ergebnisse: Hauttemperatur...

Charcot foot: Skin temperature as a good clinical parameter for predicting disease outcome

Moura-Neto, Arnaldo; Fernandes, Tulio Diniz; Zantut-Wittmann, Denise Engelbrecht; Trevisan, Rafael Ortiz; Sakaki, Marcos Hideyo; Santos, Alexandre Leme Godoy; Nery, Marcia; Parisi, Maria Candida Ribeiro
Fonte: ELSEVIER IRELAND LTD; CLARE Publicador: ELSEVIER IRELAND LTD; CLARE
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
66.01%
Twenty-eight diabetics presenting with acute Charcot foot were immobilized and the temperature difference between limbs measured at each month. All patients had monthly follow-up visits for a year and the relapse rate was zero. We found that skin temperature is a good parameter to ensure safe immobilization withdrawal. (C) 2011 Elsevier Ireland Ltd. All rights reserved.

Charcot foot: Skin temperature as a good clinical parameter for predicting disease outcome

Moura-Neto, Arnaldo; Fernandes, Tulio Diniz; Zantut-Wittmann, Denise Engelbrecht; Trevisan, Rafael Ortiz; Sakaki, Marcos Hideyo; Godoy Santos, Alexandre Leme; Nery, Marcia; Ribeiro Parisi, Maria Candida
Fonte: Elsevier; Clare Publicador: Elsevier; Clare
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
66.01%
Twenty-eight diabetics presenting with acute Charcot foot were immobilized and the temperature difference between limbs measured at each month. All patients had monthly follow-up visits for a year and the relapse rate was zero. We found that skin temperature is a good parameter to ensure safe immobilization withdrawal. (C) 2011 Elsevier Ireland Ltd. All rights reserved.

Comparison of techniques for the measurement of skin temperature during exercise in a hot, humid environment

McFarlin, BK; Venable, AS; Williams, RR; Jackson, AW
Fonte: Institute of Sport in Warsaw Publicador: Institute of Sport in Warsaw
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
46.19%
Exercising or working in a hot, humid environment can results in the onset of heat-related illness when an individual's temperature is not carefully monitored. The purpose of the present study was to compare three techniques (data loggers, thermal imaging, and wired electrodes) for the measurement of peripheral (bicep) and central (abdominal) skin temperature. Young men and women (N = 30) were recruited to complete the present study. The three skin temperature measurements were made at 0 and every 10-min during 40-min (60% VO2max) of cycling in a hot (39±2°C), humid (45±5% RH) environment. Data was statistically analyzed using the Bland-Altman method and correlation analysis. For abdominal skin temperature, the Bland-Altman limits of agreement indicated that data loggers (1.5) were a better index of wired than was thermal imaging (3.5), For the bicep skin temperature the limits of agreement was similar between data loggers (1.9) and thermal (1.9), suggesting the both were suitable measurements. We also found that when skin temperature exceeded 35°C, we observed progressively better prediction between data loggers, thermal imaging, and wired skin sensors. This report describes the potential for the use of data loggers and thermal imaging to be used as alternative measures of skin temperature in exercising...

Neonatal skin temperature distribution using infra-red colour thermography.

Clark, R P; Stothers, J K
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /05/1980 EN
Relevância na Pesquisa
46.19%
1. Infra-red Colour Thermography was used to visualize skin temperatures over seven neonates nursed in a modified temperature controlled incubator. 2. Temperature distributions were recorded on cine film which was analysed to evaluate mean skin temperatures; these were subsequently compared with values obtained from multiple, weighted measurements from a thermocouple thermometer. In all cases, there was agreement to within +/- 0 . 6 degrees C. 3. Thermograms in thermo-neutral conditions (approximately 32 degrees C) showed a temperature distribution with the warmest skin overlying the central hot 'core' and temperatures falling towards the extremities. Temperature patterns in a cooler environment (approximately 28 degrees C) showed features due to the conductive or thermogenic nature of the structures underlying the skin. 4. Multiple skin temperature recordings made at two environmental temperatures were obtained from a further twelve infants. 5. Linear regression of skin temperature against rectal--environmental difference, performed for each of the measured sites, showed that the upper arm and, to a lesser extent, the upper thigh temperatures represented the mean value most closely. The upper abdomen and head were both warmer and less responsive to environmental change than the mean skin temperature. These findings were supported by the thermographic observations.

The influence of subcutaneous fat in the skin temperature variation rate during exercise

Neves,Eduardo Borba; Moreira,Tiago Rafael; Lemos,Rui Jorge; Vilaça-Alves,José; Rosa,Claudio; Reis,Victor Machado
Fonte: Sociedade Brasileira de Engenharia Biomédica Publicador: Sociedade Brasileira de Engenharia Biomédica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2015 EN
Relevância na Pesquisa
66.2%
Introduction: Thermography records the skin temperature, which can be influenced by: muscle mass and subcutaneous fat layer. Thus, the aim of this study was to investigate the influence of subcutaneous fat layer in the skin temperature variation rate, during exercise. Methods This is a short-longitudinal study that involved 17 healthy male trained volunteers. Volunteers were divided in two groups. The first called GP1 with nine volunteers (biceps brachii skinfold thickness < 4 mm) and the second called GP2 with eight volunteers (biceps brachii skinfold thickness from 4 to 8 mm). Both groups performed three sets with 16 repetitions of unilateral biceps brachii bi-set exercise with dominant arm (eight repetitions of biceps curls and another eight of biceps hammer curls, with dumbbells), and with load of 70% of 1RM. The rest time between sets was 90s. Results The skin temperature variation rate (variation of temperature / time) was 3.59 × 10-3 ± 1.47 × 10-3 °C/s for GP1 and 0.66 × 10-3 ± 4.83 × 10-3 °C/s for GP2 (p = 0.138) considering all moments. For the period after set 1 until the end of set 3, skin temperature variation rate was 5.11 × 10-3 ± 2.57 × 10-3 °C/s for GP1 and 1.88 × 10-3 ± 3.60 × 10-3 °C/s for GP2 (p = 0.048). Subcutaneous fat layer also influences the skin temperature at resting (p = 0.044). Conclusion Subjects with lower subcutaneous fat layer have a higher skin temperature variation rate during exercise than those with higher subcutaneous fat layer.

Thermographic evaluation of hind paw skin temperature and functional recovery of locomotion after sciatic nerve crush in rats

Sacharuk, Viviane Z.; Lovatel, Gisele A.; Ilha, Jocemar; Marcuzzo, Simone; Pinho, Alexandre Severo do; Xavier, Léder L.; Zaro, Milton A.; Achaval, Matilde
Fonte: Universidade de São Paulo. Faculdade de Medicina Publicador: Universidade de São Paulo. Faculdade de Medicina
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; ; Formato: application/pdf
Publicado em 01/01/2011 ENG
Relevância na Pesquisa
66.11%
INTRODUCTION: Peripheral nerves are often damaged by direct mechanical injury, diseases, and tumors. The peripheral nerve injuries that result from these conditions can lead to a partial or complete loss of motor, sensory, and autonomic functions, which in turn are related to changes in skin temperature, in the involved segments of the body. The aim of this study was to evaluate the changes in hind paw skin temperature after sciatic nerve crush in rats in an attempt to determine whether changes in skin temperature correlate with the functional recovery of locomotion. METHODS: Wistar rats were divided into three groups: control (n = 7), sham (n = 25), and crush (n = 25). All groups were subjected to thermographic, functional, and histological assessments. RESULTS: ΔT in the crush group was different from the control and sham groups at the 1st, 3rd and 7rd postoperative days (p

Supraclavicular skin temperature and BAT activity in lean healthy adults

van der Lans, Anouk A. J. J.; Vosselman, Maarten J.; Hanssen, Mark J. W.; Brans, Boudewijn; van Marken Lichtenbelt, Wouter D.
Fonte: Springer Japan Publicador: Springer Japan
Tipo: Text
EN
Relevância na Pesquisa
46.19%
The ‘gold standard’ for measuring brown adipose tissue (BAT) in humans is [18F]FDG-PET/CT-imaging. With this technique subjects are exposed to ionizing radiation and are therefore limited in the number of scans that can be performed. We investigated the relation between supraclavicular skin temperatures and BAT activity values using a strictly temperature-controlled air-cooling protocol. Data of 36 male subjects was analyzed. BAT activity was evaluated by [18F]FDG-PET/CT-imaging and skin temperature was measured by means of wireless temperature sensors. Supraclavicular skin temperature dropped less compared to skin temperatures at other sites (all P values <0.01). A significant positive correlation was found between the change in supraclavicular skin temperature with BAT activity (R2 0.23), and the change in supraclavicular skin temperature and non-shivering thermogenesis (R2 0.18, both P values <0.01). The correlations indicate that supraclavicular skin temperature (changes) can potentially be used as a qualitative measure of BAT activity and BAT thermogenesis.