Journal of Sports Medicine & Doping Studies

Peter Hemmersbach

Publications

• Research Article
  Intra-Individual Variability in the Urine Concentrations of Inhaled Salmeterol in Male Subjects with Reference to Doping Analysis?Impact of Urine Specific Gravity Correction
  
  Author(s): Morten Hostrup, Anders Kalsen, Peter Hemmersbach and Vibeke BackerMorten Hostrup, Anders Kalsen, Peter Hemmersbach and Vibeke Backer
  
  Since 2010, the World Anti-Doping Agency (WADA) has introduced urinary thresholds for some beta2-agonists. In doping analysis urine samples of beta2-agonists are not corrected for the Urine Specific Gravity (USG) by the WADA laboratories. Several studies have observed high differences in the urine concentrations of beta2-agonists when correction for USG is compared with no correction, as well as high inter-individual variability between subjects. However, no studies have measured the intra-individual variability after inhalation of the long-acting beta2-agonist salmeterol. As such, the purpose of this study was to measure the intra-individual variability in the urine concentrations of salmeterol and its metabolite α-hydroxysalmeterol. Furthermore, to highlight the variability between corrected and uncorrected urine samples for USG. Urine samples from 20 subjects were analyzed fo.. Read More»
  DOI: 10.4172/2161-0673.1000118

  Abstract