The change in local skin temperature in biological systems is determined by the difference in the thermal energies received and lost by conduction transfer and advection, as well as by that released by chemical reaction processes such as metabolism. Thermal imaging involves measurements of surface temperature using an array of infrared sensors installed in an infrared camera. This imaging allows for simultaneous measurement of temperatures of multiple points on the skin and is also a reference for the surrounding temperature. For this study, a FLIR i5 infrared camera (Flir Systems Inc., Portland, USA) with a wavelength range 7.5e13 mm was used (Fig. 1). Temperature distribution measurements were possible in the range 0e250C. Data were transferred to notebook computer using ThermaCAM Researchers Pro 2.8 software (Flir Systems Inc., Portland, USA).