The effect of fasting during Ramadan on parameters of the haematological and steroidal modules of the athletes biological passport - a pilot study

Autor: Rainer Goebel, Aisha Al-Wahaibi, Najib Dbes, Sven Christian Voss, S. Al-Yazedi, Costas Georgakopoulos, M Alsayrafi, Amal Bashraheel, Vidya Mohamed-Ali, Shaika Al-Sowaidi, Suhail Kraiem, Abeer Seyam, K Alsaadi
Rok vydání: 2015
Předmět:
Zdroj: Drug Testing and Analysis. 7:1017-1024
ISSN: 1942-7603
DOI: 10.1002/dta.1917
Popis: 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.
Databáze: OpenAIRE