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Associations between Physical and Cognitive Doping – A Cross-Sectional Study in 2.997 Triathletes

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  • Pavel Dietz
  • Rolf Ulrich
  • Robert Dalaker
  • Heiko Striegel
  • Andreas G Franke
  • Klaus Lieb
  • Perikles Simon

Abstract

Purpose: This study assessed, for the first time, prevalence estimates for physical and cognitive doping within a single collective of athletes using the randomized response technique (RRT). Furthermore, associations between the use of legal and freely available substances to improve physical and cognitive performance (enhancement) and illicit or banned substances to improve physical and cognitive performance (doping) were examined. Methods: An anonymous questionnaire using the unrelated question RRT was used to survey 2,997 recreational triathletes in three sports events (Frankfurt, Regensburg, and Wiesbaden) in Germany. Prior to the survey, statistical power analyses were performed to determine sample size. Logistic regression was used to predict physical and cognitive enhancement and the bootstrap method was used to evaluate differences between the estimated prevalences of physical and cognitive doping. Results: 2,987 questionnaires were returned (99.7%). 12-month prevalences for physical and cognitive doping were 13.0% and 15.1%, respectively. The prevalence estimate for physical doping was significantly higher in athletes who also used physical enhancers, as well as in athletes who took part in the European Championship in Frankfurt compared to those who did not. The prevalence estimate for cognitive doping was significantly higher in athletes who also used physical and cognitive enhancers. Moreover, the use of physical and cognitive enhancers were significantly associated and also the use of physical and cognitive doping. Discussion: The use of substances to improve physical and cognitive performance was associated on both levels of legality (enhancement vs. doping) suggesting that athletes do not use substances for a specific goal but may have a general propensity to enhance. This finding is important for understanding why people use such substances. Consequently, more effective prevention programs against substance abuse and doping could be developed.

Suggested Citation

  • Pavel Dietz & Rolf Ulrich & Robert Dalaker & Heiko Striegel & Andreas G Franke & Klaus Lieb & Perikles Simon, 2013. "Associations between Physical and Cognitive Doping – A Cross-Sectional Study in 2.997 Triathletes," PLOS ONE, Public Library of Science, vol. 8(11), pages 1-10, November.
    • Handle: RePEc:plo:pone00:0078702
    DOI: 10.1371/journal.pone.0078702
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    1. Hannes Schröter & Beatrix Studzinski & Pavel Dietz & Rolf Ulrich & Heiko Striegel & Perikles Simon, 2016. "A Comparison of the Cheater Detection and the Unrelated Question Models: A Randomized Response Survey on Physical and Cognitive Doping in Recreational Triathletes," PLOS ONE, Public Library of Science, vol. 11(5), pages 1-11, May.

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