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 > 0.05). In female runners, BF decreased (p = 0.036) [-1.3 kg (-7.8%)] while BM, SM and TBW remained stable (p > 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 < 0.001), CK (p < 0.001), Pcr (p = 0.004) and PU (p < 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 < 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 < 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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10608 - Biochemistry and molecular biology
Result continuities
Project
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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