Description of Three Female 24-h Ultra-Endurance Race Winners in Various Weather Conditions and Disciplines

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26630%2F17%3APU122856" target="_blank" >RIV/00216305:26630/17:PU122856 - isvavai.cz</a>

Result on the web

<a href="https://www.ncbi.nlm.nih.gov/pubmed/28847143" target="_blank" >https://www.ncbi.nlm.nih.gov/pubmed/28847143</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4077/CJP.2017.BAF443" target="_blank" >10.4077/CJP.2017.BAF443</a>

Result language

angličtina

Original language name

Description of Three Female 24-h Ultra-Endurance Race Winners in Various Weather Conditions and Disciplines

Original language description

The incidence of exercise-associated hyponatremia (EAH) is higher in women than in men. We present three cases of a very mild post-race EAH in female winners of three 24-h ultra races in various weather conditions and disciplines with post-race plasma sodium [Na+] levels of 134 mM (Case 1), 133 mM (Case 2) and 134 mM (Case 3). Moreover, Case 1 and Case 2 showed elevated creatine kinase (CK) concentrations of >10,000 U/I with an absence of renal function abnormality. The common characteristics were female sex, veteran recreational category, long race experience in the particular sports discipline, excellent race performance, similar total weekly training hours and the presence of luteal phase of the menstrual cycle during the race. Hematocrit and hemoglobin decreased and post-race K+/Na+ ratio in urine increased in all three cases. In addition, an increased body mass and a decreased urine specific gravity and urine osmolality suggested over-drinking in Case 1. A decrease in the glomerular filtration rate (GFR) and creatine clearance accompanied by an increase in urine [Na+] may contribute to fluid overload in Cases 2 and 3. Furthermore, urine osmolality reached a level indicating antidiuretic hormone (ADH) secretion in all the present cases. Therefore, we recommend that race medical personnel should not forget to look for EAH even in fast and experienced female athletes and during races in different environmental conditions.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30105 - Physiology (including cytology)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

CHINESE JOURNAL OF PHYSIOLOGY

ISSN

0304-4920

e-ISSN

—

Volume of the periodical

60

Issue of the periodical within the volume

4

Country of publishing house

TW - TAIWAN (PROVINCE OF CHINA)

Number of pages

11

Pages from-to

231-241

UT code for WoS article

000409566300005

EID of the result in the Scopus database

2-s2.0-85029725971