ABSTRACT
Comfort is a pleasant state of harmony in the physiological, psychological, neurophysiological, and physical aspects between a human being and the environment. Textile comfort is based on three axes: elasticity, thermal regulation, and touch. The objective of this study is to analyse and measure the main differences in comfort promoted by the use of polyamide and polyester fabrics in the manufacture of sportswear, specifically for running. Two physical tests were carried out on the fabrics: determination of the linear density, and determination of thickness. In vivo tests were performed to verify whether athletes can perceive performance differences between the two garments. The evaluations carried out within this research considered specifically the sporting modality of running, to verify the influence and advantages that the clothing made with each of these fibres to positively or negatively impact performance. Experimental results show that T-shirts made with polyamide yarns present some advantages over those made with polyester yarns.
