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. 2017 Dec;70(Pt B):1-8.
doi: 10.1016/j.jtherbio.2017.10.017. Epub 2017 Oct 27.

Effect of body fat and gender on body temperature distribution

Eduardo Borba Neves  1 , Ana Carla Chierighini Salamunes  2 , Rafael Melo de Oliveira  3 , Adriana Maria Wan Stadnik  4
Affiliations

Effect of body fat and gender on body temperature distribution

Eduardo Borba Neves et al. J Therm Biol. 2017 Dec.

Abstract

It is well known that body composition can influence peripheral heat loss and skin temperature. That the distribution of body fat is affected by gender is well known; however, there is little information on how body composition and gender influences the measure of skin temperature. This study evaluated skin temperature distribution according to body fat percentage (BF%) and gender. A sample of 94 apparently healthy volunteers (47 women and 47 men) was assessed with Dual-Energy X-Ray Absorptiometry (DXA) and infrared thermography (mean, maximum and minimum temperatures - TMean, TMax and TMin). The sample was divided into groups, according to health risk classification, based on BF%, as proposed by the American College of Sports Medicine: Average (n = 58), Elevated (n = 16) or High (n = 20). Women had lower TMean in most regions of interest (ROI). In both genders, group High had lower temperature values than Average and Elevated in the trunk, upper and lower limbs. In men, palms and posterior hands had a tendency (p < 0.05) for increased temperature along with increased BF%. TMean, TMax and TMin of trunk, upper and lower limbs were negatively correlated with BF% and the fat percentage of each segment (upper limbs, lower limbs and trunk). The highest correlations found in women were between posterior trunk and BF% (rho = -0.564, p < 0.001) and, in men, between anterior trunk and BF% (rho = -0.760, p < 0.001). Overall, this study found that women have lower skin temperature than men, which was related with higher BF%. Facial temperature seems not to be influenced by body fat. With the future collection of data on the relationship between BF% and skin temperature while taking into account factors such as body morphology, gender, and ethnicity, we conclude that measurement of BF may be reliably estimated with the use of thermal imaging technology.

Keywords: Adipose tissue; Body composition; Gender; Skin temperature; Temperature distribution; Thermal imaging.

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