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Human Movement

The Journal of University School of Physical Education, Wroclaw; University School of Physical Education, Krakow

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Open Access

Changes in Body Composition after Endurance Training and Triathlon Competition

Enrico Puggina1 / Dalmo Machado1 / Gustavo Borges1 / Valdir Barbanti1

University of Sao Paulo, Ribeirao Preto, Brazil1

Western University of Parana, Marechal Candido Rondon, Brazil2

This content is open access.

Citation Information: Human Movement. Volume 12, Issue 4, Pages 361–366, ISSN (Online) 1899-1955, ISSN (Print) 1732-3991, DOI: 10.2478/v10038-011-0042-6, December 2011

Publication History

Published Online:
2011-12-25

Changes in Body Composition after Endurance Training and Triathlon Competition

Purpose. The aim of this study was to investigate the effects of training and triathlon competition on anthropometry, plasmatic free fatty acids (FFA) and hydration status. Methods. Twelve male triathletes were submitted to a 12-week training program to compete in the "32° Pirassununga Half Ironman". Anthropometric measurements such as skinfold thickness and bioelectrical impedance (BIA) as well as urine and blood samples were collected at three intervals: at the beginning of the training program (M-1), before (M-2) and after competition (M-3). FFA were analyzed using a NEFA-C kit. Urine pH and density was determined using reagent tapes and a manual refractometer. Data were analyzed using one-way ANOVA and the Tukey-Kramer post-test (p < 0.05). Results. No differences were found for body mass (M-1 = 71.83, M-2 = 74.22, M-3 = 72.15 kg), percent body fat using skinfolds (M-1 = 10.98, M-2 = 10.92, M-3 = 10.40%), urine density (M-1 = 1.02, M-2 = 1.01, M-3 = 1.02) and urine pH (M-1 = 6.00, M-2 = 5.92, M-3 = 5.35). For BIA and FFA, differences were found after competition (BIA: M-1 = 13.54, M-2 = 13.91, M-3 = 9.45%; FFA: M-1 = 0.16, M-2 = 0.15, M-3 = 1.69 mEq/L). Conclusions. These results illustrate the effects of training and competition on body composition and FFA mobilization. Additionally, after five hours of effort, no evidence of dehydration was found after the race.

Keywords: body composition; endurance training; hydration and triathlon

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