Victor Hugo Pereira Franco , Aldo A. Vasquez-Bonilla , Manuel Sillero-Quintana
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引用次数: 0
Abstract
The use of thermography to measure skin temperature (Tsk) is typically assessed in a standing position; however, the differences of Tsk in different body positions have not been adequately studied. This study aimed to analyze the influence of body position (sitting, standing, and supine) on Tsk. Twenty-nine trained men (age 23.52 ± 0.34 years) spent 10 minutes in each of the three positions in random order. During these postures, the heart rate (HR) response and systolic and diastolic blood pressure were measured as influential cardiovascular variables. Tsk was measured in the trapezius, shoulder, chest, biceps, costal, elbow, abdomen, and forearm. Covariance analysis (ANCOVA), intraclass correlation (ICC), typical error, and effect size (ES) were applied. When comparing the three positions, greater variations in Tsk were observed in the shoulder (0.74–1.31 %), biceps (−0.36 - 1.33 %), elbow (0.46–1.20%) and forearm (0.58–1.41%). HR varied significantly between the different positions (p < 0.05), influencing Tsk in the chest (ES = 0.71), the biceps (ES = 0.56) and abdominal regions (ES = 0.91) in the sitting position compared to the supine position, and in the abdominal region (ES = 1.12) in the standing position compared to the supine position. The reliability of the measurement was excellent in the chest (ICC = 0.91), costal (ICC = 0.91), and abdominal (ICC = 0.89) regions. Although many studies traditionally measure Tsk in a standing position, the results of this study support that the Tsk distribution varies with body position, and this factor should be considered in any study using thermography.
期刊介绍:
The Journal of Thermal Biology publishes articles that advance our knowledge on the ways and mechanisms through which temperature affects man and animals. This includes studies of their responses to these effects and on the ecological consequences. Directly relevant to this theme are:
• The mechanisms of thermal limitation, heat and cold injury, and the resistance of organisms to extremes of temperature
• The mechanisms involved in acclimation, acclimatization and evolutionary adaptation to temperature
• Mechanisms underlying the patterns of hibernation, torpor, dormancy, aestivation and diapause
• Effects of temperature on reproduction and development, growth, ageing and life-span
• Studies on modelling heat transfer between organisms and their environment
• The contributions of temperature to effects of climate change on animal species and man
• Studies of conservation biology and physiology related to temperature
• Behavioural and physiological regulation of body temperature including its pathophysiology and fever
• Medical applications of hypo- and hyperthermia
Article types:
• Original articles
• Review articles