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Res Sports Med. 2018 Jul-Sep;26(3):323-331. doi: 10.1080/15438627.2018.1447472. Epub 2018 Mar 5.

Changes in physiological and performance variables in non-professional triathletes after taking part in an Olympic distance triathlon.

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a Research group on advances in sport training and physical conditioning, University of Extremadura , Cáceres , Spain.
b Departamento de Educación Física y Deportes , Instituto Superior de Educación Física, Universidad de la República , Rivera , Uruguay.


Given increasing popularity of triathlon, the objective of this study was to evaluate the acute effects upon the health of triathletes. To do so, with a sample of 23 male athletes (34.4 ± 7.9 years old), an assessment was carried out both before and after an Olympic distance triathlon, of the bodily composition, the jumping ability and the BORG and VAS scales, as well as a blood analysis of the following: Lactate (mmol/L), Hematrocrit (%), Glucose (mg/dL), Total proteins (mg/dL), Triglycerides (mg/dL), Bilirubin (mg/dL), GOT (IU/L), GPT (IU/L), LDH (IU/L), CPK (IU/L). The results showed an increase (p < 0.001) in the different markers of metabolic stress and muscular damage following the triathlon, but always within a normal range considered to be healthy, with the exception of CPK (IU/L) (PRE 149.33 ± 108.16 vs POST 290.10 ± 102.48). Therefore, it would seem that competing in an Olympic-distance triathlon does not pose health risks for trained subjects.


Physical endurance; fatigue; health

[Indexed for MEDLINE]

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