RESUMEN
This study investigated the effect of Ramadan on the haematological and steroid module of the Athletes Biological Passport (ABP) of the World Anti-Doping Agency (WADA). Nine healthy physically active subjects were tested in the morning and afternoon for two days before and three days during Ramadan. Sample collection and all analyses were performed according to WADA technical documents. Although there were significant changes in the haemoglobin concentration during Ramadan, especially during the first fasting week, none of the subjects in this study exceeded the individually calculated thresholds of the ABP. No significant effects on testosterone/epitestosterone (T/E) ratio were observed but only the afternoon specific gravity (SG) of the urine was elevated. Thus, when urinary steroid concentrations are required, SG corrections need to be performed. The haematological and the steroid module of the ABP can be reliably applied during Ramadan as the observed changes are only marginal.
Asunto(s)
Atletas , Doping en los Deportes , Epitestosterona/orina , Ayuno , Hemoglobinas/metabolismo , Islamismo , Sustancias para Mejorar el Rendimiento , Detección de Abuso de Sustancias/métodos , Adulto , Biomarcadores/sangre , Biomarcadores/orina , Ayuno/sangre , Ayuno/orina , Humanos , Masculino , Sustancias para Mejorar el Rendimiento/sangre , Sustancias para Mejorar el Rendimiento/orina , Proyectos Piloto , Valor Predictivo de las Pruebas , Recuento de Reticulocitos , Gravedad Específica , Factores de Tiempo , Urinálisis , Adulto JovenRESUMEN
Currently, the cutting and sewing process is utilized to produce medical products with tailored shape, which leads to a number of adverse consequences due to seams. These drawbacks have prompted us to undertake research to develop new methods by which seamless tubular woven products with inherent shape could be produced. The methods could potentially lead to the design and production of seamless shaped textiles that might be used in a wide variety of medical applications. Three variables were tested, specifically yarn shrinkage, weave designs, and thread density. A variety of samples were woven using different combinations of these variables to create structures with different shrinkage properties. Upon finishing in a solution containing a surfactant and soda ash, the structures experience different degrees of shrinkage resulting in desired shapes. Length and width dimensions of each sample were taken before and after finishing. The change in sample shape due to differential shrinkage in terms of yarn shrinkage, weave, and thread density is reported.