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Influence of anthropometry on race performance in extreme endurance triathletes: World Challenge Deca Iron Triathlon 2006
  1. Beat Knechtle1,
  2. Patrizia Knechtle1,
  3. Jorge Luis Andonie2,
  4. Götz Kohler3
  1. 1
    Gesundheitszentrum St Gallen, Switzerland
  2. 2
    Multisport Andonie, Monterrey, Nuevo Leon, Mexico
  3. 3
    Division of Biophysical Chemistry, Biozentrum, University of Basel, Basel, Switzerland
  1. Dr Knechtle, Gesundheitszentrum St Gallen, Switzerland; beat.knechtle{at}hispeed.ch

Abstract

Objective: To investigate the influence of anthropometric variables on race performance in ultra-endurance triathletes in an ultra-triathlon.

Design: Descriptive field study.

Setting: The “World Challenge Deca Iron Triathlon 2006” in Monterrey, Mexico, in which everyday for 10 consecutive days athletes had to perform the distance of one Ironman triathlon of 3.8 km swimming, 180 km cycling and 42.195 km running.

Subjects: Eight male ultra-endurance athletes (mean (SD) age 40.6 (10.7) years, weight 76.4 (8.4) kg, height 175 (4) cm and body mass index (BMI) 24.7 (2.2) kg/m2).

Interventions: None.

Main outcome measures: Direct measurement of body mass, height, leg length, skinfold thicknesses, limb circumference and calculation of BMI, skeletal muscle mass (SM), percentage SM (%SM) and percentage body fat (%BF) in order to correlate measured and calculated anthropometric variables with race performance.

Results: Race time was not significantly (p>0.05) influenced by the directly measured variables, height, leg length, body mass, average skinfold thicknesses, or circumference of thigh, calf or upper arm. Furthermore, no significant (p>0.05) correlation was observed between race time and the calculated variables, BMI, %SM and %BF.

Conclusions: In a multistage ultra-triathlon over 10 Ironman triathlon distances in 10 consecutive days, there was no effect of body mass, height, leg length, skinfold thicknesses, limb circumference, BMI, %SM or %BF on race performance in the only eight finishers.

  • body mass index
  • skeletal muscle mass
  • fat mass
  • extreme endurance
  • ultra triathlon

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Footnotes

  • Competing interests: None.

  • Abbreviations:
    %BF
    percentage body fat
    BMI
    body mass index
    SM
    skeletal muscle mass

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