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ŞAHİN, ŞENAY

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    Publication
    Investigation of the thermal comfort of the sportswear by standing thermal manikin and thermal imaging techniques
    (Sage Publications Ltd, 2023-06-01) Özkan, Esra Taştan; Kaplangiray, Binnaz; Şekir, Ufuk; Şahin, Şenay; KAPLANGİRAY, BİNNAZ; ŞEKİR, UFUK; ŞAHİN, ŞENAY; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Spor Hekimliği Anabilim Dalı.; Bursa Uludağ Üniversitesi/Spor Bilimleri Fakültesi/Antrenörlük Eğitimi Bölümü.; 0000-0002-1296-9092 ; 0000-0003-2735-8697 ; AAM-4348-2020; FDE-4794-2022; AAD-9210-2019
    Garments should not overload the body during activity and should be chosen in accordance with the ambient conditions. Especially in active sports, sportswear should make a person feel comfortable and increase performance by easily removing excess heat and moisture from the body without interrupting physical activity. In this study, five T-shirts with the same size and weight characteristics, but in different yarn types were produced and analysed. The thermal and water vapour resistance properties of these garments were measured using a thermal manikin system. In addition, thermal camera images were taken at 10-minute intervals during the 50-minute wear trial programme, and skin temperatures were measured from the upper front body and the upper back body with two sensors. The results showed that POS and PM-coded garments made of polyester with low clothing insulation (clo) values were statistically different from CS and CPS coded cotton-containing garments in terms of front and back surface thermal camera images. It was observed that cotton-containing garments were more uncomfortable than polyester and Tencel owing to their higher thermal resistance, garment surface temperature, and skin temperature values. The Tencel garment was measured similarly to the CS and CPS coded garments at the beginning of the activity and measured similarly to the POS and PM coded garments at the end of the activity on both surfaces.
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    Publication
    Effect of different garments on thermophysiological and psychological comfort properties of athletes in a wear trial test
    (Nature Portfolio, 2023-09-09) Özkan, Esra Tastan; KAPLANGİRAY, BİNNAZ; Kaplangiray, Binnaz; Şekir, Ufuk; ŞEKİR, UFUK; Şahin, Şenay; ŞAHİN, ŞENAY; Bursa Uludağ Üniversitesi/Ziraat Fakültesi/Tekstil Mühendisliği Bölümü.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Spor Hekimliği Anabilim Dalı.; 0000-0002-1296-9092; AAD-9210-2019; AEE-5817-2022; JHT-0825-2023
    This paper reports on an experimental investigation of thermophysiological and psychological responses during and after an incremental low- to high-intensity exercise at 27 degrees C and 45% humidity. Five t-shirt garments were produced from different yarn types, their weights and yarn counts were close to each other. During the wear trials, heat and humidity sensors were placed at four body locations (the chest, back, abdomen, and waist). In addition, dynamic comfort measurements of the upper body were examined using a datalogger and subjective rating scales. This study aimed to investigate the effects of garment type on aerobic performance, microclimate temperature and humidity values, and psychological comfort. It was observed that the relative humidity and temperature of the microclimate were low in fabrics with high air permeability and low thermal resistance values of the Tencel single jersey and polyester mesh knitted fabrics. There was a significant difference in microclimate temperature results of TS coded Tencel single jersey t-shirt sample and other t-shirt samples according to statistical analysis results. On the other hand, the statistical results of the PM coded fabric sample measured at lower humidity in the three body regions were found to be a significantly different from those of the other samples (except TS). Although not statistically significant, the VO2 values and heart rates of these fabrics were lower than those of other fabrics. It was concluded that garments made from Tencel single jersey (TS) and polyester mesh (PM) fabrics affected the performance of athletes positively. Athletes were less forced during the training, and the activity could be maintained more than the others when wearing these clothes.