title: The Relationship between Anthropometry and Split Performance in Recreational Male Ironman Triathletes.
abstract: OBJECTIVE
  The aim of this study was to investigate the relation between anthropometric variables and total race time including split times in 184 recreational male Ironman triathletes.
  
  
  METHODS
  Body mass, body height, body mass index, lengths and circumferences of imbs, thicknesses of skin-folds, sum of skin-fold thicknesses, and percent body fat were related to total race time including split times using correlation analysis and effect size.
  
  
  RESULTS
  A large effect size (r>0.37) was found for the association between body mass index and time in the run split and between both the sum of skin-folds and percent body fat with total race time. A medium effect size (r=0.24-0.36) was observed in the association between body mass and both the split time in running and total race time, between body mass index and total race time, between both the circumferences of upper arm and thigh with split time in the run and between both the sum of skin-folds and percent body fat with split times in swimming, cycling and running.
  
  
  CONCLUSIONS
  The results of this study showed that lower body mass, lower body mass index and lower body fat were associated with both a faster Ironman race and a faster run split; lower circumferences of upper arm and thigh were also related with a faster run split.
authors.affiliation: Gesundheitszentrum St. Gallen, St. Gallen, Switzerland.
authors.forename: Beat
authors.initials: B
authors.lastname: Knechtle
authors.forename: Andrea
authors.initials: A
authors.lastname: Wirth
authors.forename: Christoph
authors.initials: C
authors.lastname: Alexander Rüst
authors.forename: Thomas
authors.initials: T
authors.lastname: Rosemann