Journal of Sports Medicine & Doping Studies

Leon I Foster

Publications

• Research Article
  Modelling Effects of Drug Testing Procedures on Performance Trends in the Shot Put
  Author(s): Leon I Foster, Steve J Haake, Dave M James and Alan M NevillLeon I Foster, Steve J Haake, Dave M James and Alan M Nevill
  
  Objectives: The effect of performance enhancing drugs on historic performance records in sport is open to interpretation and needs empirical support. Here we addressed this contentious issue by assessing whether a double sigmoidal model could detect decrements in sporting performance attributed to introduction of drug testing protocols. Methods: Distances thrown by the top 25 male and female shot putters since the end of the 19th century were modelled using a double sigmoid. Results: First-phase peak acceleration in the men’s and women’s shot put was reached in 1981 and 1986 respectively coinciding with advent of systematic doping programs. Shot put performance of men and women underwent a second-phase decline of 5.3 m and 8.9 m, in 1991 and 1994, respectively. Performance decrements
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  DOI: 10.4172/2161-0673.1000151

  Abstract PDF