Influence of Triathlon on the Electrolyte Balance

University Hospital of Cologne1,089 enrolled

Overview

Aim of the study is examining the incidence of the occurrence of hyponatremia during a Triathlon

Studies in similar endurance sports (e.g. marathon) could already indicate a high incidence for the appearance of hyponatremia during competitions. The loss of sodium through sweating and the excessive fluid intake during the competitions is a primary risk factor for the development of hyponatremia. Based on the known occurrence of hyponatremia in marathon runners, participants of the Ironman European Championship between the years 2005 and 2014 were screened for the occurrence of hyponatremia after finishing the race for safety reasons. Subjects were approached at random in the athlete's garden and invited to participate. All participants were 18 years or older.

Study Type

OBSERVATIONAL

Enrollment

1,089

Conditions

Hyponatremia

Interventions

Education in nutritionBEHAVIORAL

Athletes were given a 45 min lesson on the proper diet and fluid intake to prevent hyponatremia in long-distance triathlon.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 60 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * finisher of a long-distance triathlon * \> 18 years * \< 60 years Exclusion Criteria: * not finished a long-distance triathlon * \< 18 years * \> 60 years

Locations (1)

Uniklinik Köln

Cologne, North Rhine-Westphalia, Germany

Outcomes

Primary Outcomes

Electrolyte balance Blood sodium

Time frame: within 20 minutes after finishing the race

Secondary Outcomes

Acid balance

Time frame: within 20 minutes after finishing the race

Data from ClinicalTrials.gov

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