By Jose Ignacio Priego Quesada
This booklet addresses the appliance of infrared thermography in activities, reading the most advantages of this non-invasive, non-radiating and inexpensive method. points coated comprise the detection of accidents in activities drugs, the evaluate of activities functionality as a result of the current hyperlink among actual health and thermoregulation and the research of warmth move for activities clothing and activities gear. even supposing infrared thermography is generally thought of to be a quick and easy-to-use instrument, the power to carry exact and repeatable measurements is a crucial attention. additionally, you will need to be conversant in the newest activities experiences released in this strategy to comprehend its power and boundaries. as a result, this ebook establishes an essential hyperlink among laboratory assessments and the activities field.
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The graphical representation of the experimental curves corresponding to the spectral emissive power of the black body for each wavelength at different temperatures is shown in Fig. 8. This ﬁgure shows how the body emits radiation at different frequencies according to its temperature. For example, the sun, because it is at a temperature between 5000 and 6000 K, emits its radiation in the ultraviolet, visible and infrared spectrum; however, its emission peak is in the range of visible radiation (526 nm, corresponding to the green–yellow colors of the visible light).
16 Example of an infrared image of the eye region of the study of Fenner et al. . They assessed the maximum temperature of a cross located in the medial posterior palpebral border of the lower eyelid and the lacrimal caruncle 1 Introduction: Historical Perspective of Infrared Thermography … 19 temperature may be related to the stress response of the horse, due to the possible relationship between eye temperature, heart rate and heart rate variability. Although the authors did not ﬁnd correlations between these parameters, when the noseband was tightest, eye temperature was recorded at the maximum value, accompanied by an increase in heart rate and a decrease in heat rate variability, suggesting that this condition produced an acute stress.
Priego Quesada et al. differences in the parameters evaluated, they commented that the tendency of the data supported the previous idea. Finally, in the most recent research of the present discussion, Formenti and colleagues analyzed the skin temperature response to two types of resistance exercises, modulating the amount of skin blood flow . The rationale of this study was that low intensity resistance training with slow movement and tonic force generation has been shown to create blood flow restriction within muscles and therefore may affect skin blood flow and skin temperature response.