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

Identifikátory výsledku

  • Kód výsledku v 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>

  • Výsledek na webu

    <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>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

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

  • Popis výsledku v původním jazyce

    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.

  • Název v anglickém jazyce

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

  • Popis výsledku anglicky

    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.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    30105 - Physiology (including cytology)

Návaznosti výsledku

  • Projekt

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2017

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název periodika

    CHINESE JOURNAL OF PHYSIOLOGY

  • ISSN

    0304-4920

  • e-ISSN

  • Svazek periodika

    60

  • Číslo periodika v rámci svazku

    4

  • Stát vydavatele periodika

    TW - Čínská republika (Tchaj-wan)

  • Počet stran výsledku

    11

  • Strana od-do

    231-241

  • Kód UT WoS článku

    000409566300005

  • EID výsledku v databázi Scopus

    2-s2.0-85029725971