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Body Composition Changes During a 24-h Winter Mountain Running Race Under Extremely Cold Conditions

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14410%2F19%3A00112852" target="_blank" >RIV/00216224:14410/19:00112852 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216305:26630/19:PU132102

  • Result on the web

    <a href="https://www.frontiersin.org/articles/10.3389/fphys.2019.00585/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fphys.2019.00585/full</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3389/fphys.2019.00585" target="_blank" >10.3389/fphys.2019.00585</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Body Composition Changes During a 24-h Winter Mountain Running Race Under Extremely Cold Conditions

  • Original language description

    Background: To date, no study has focused on body composition characteristics and on parameters associated with skeletal muscle damage and renal function in runners participating in a 24-h winter race held under extremely cold environmental conditions (average temperature of -14.3 degrees C). Methods: Anthropometric characteristics, plasma urea (PU), plasma creatinine (Pcr), creatine kinase (CK), plasma volume (PV) and total body water (TBW) were assessed pre- and post-race in 20 finishers (14 men and 6 women). Results: In male runners, body mass (BM) (p = 0.003) and body fat (BF) (p = 0.001) decreased [-1.1 kg (-1.4%) and -1.1 kg (-13.4%), respectively]; skeletal muscle mass (SM) and TBW remained stable (p &gt; 0.05). In female runners, BF decreased (p = 0.036) [-1.3 kg (-7.8%)] while BM, SM and TBW remained stable (p &gt; 0.05). The change (Delta) in BM was not related to Delta BF; however, Delta BM was related to Delta SM [r = 0.58, p = 0.007] and Delta TBW (r = 0.59, p = 0.007). Delta SM correlated with Delta TBW (r = 0.51, p = 0.021). Moreover, Delta BF was negatively associated with Delta SM (r = -0.65, p = 0.002). PV (p &lt; 0.001), CK (p &lt; 0.001), Pcr (p = 0.004) and PU (p &lt; 0.001) increased and creatinine clearance (CrCl) decreased (p = 0.002). The decrease in BM was negatively related to the increase in CK (r = -0.71, p &lt; 0.001). Delta Pcr was positively related to Delta PU (r = 0.64, p = 0.002). The decrease in CrCl was negatively associated with the increase in both PU (r = -0.72, p &lt; 0.001) and CK (r = -0.48, p = 0.032). Conclusion: The 24-h running race under extremely cold conditions led to a significant BF decrease, whereas SM and TBW remained stable in both males and females. Nevertheless, the increase in CK, Pcr and PU was related to the damage of SM with transient impaired renal function.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10608 - Biochemistry and molecular biology

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Frontiers in Physiology

  • ISSN

    1664-042X

  • e-ISSN

    1664-042X

  • Volume of the periodical

    10

  • Issue of the periodical within the volume

    MAY 14 2019

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    13

  • Pages from-to

    1-13

  • UT code for WoS article

    000467980400001

  • EID of the result in the Scopus database

    2-s2.0-85068213577