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Effect of Rapid Weight Loss on Hydration Status and Performance in Elite Judo Athletes

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dc.contributor.authorCeylan, Bayram
dc.contributor.authorAydos, Latif
dc.contributor.authorŠimenko, Jožef
dc.date.accessioned2026-01-04T16:36:47Z
dc.date.issued2022-03-24
dc.description.abstractBackground: This study aimed to investigate the effect of 5% rapid weight loss on hydration status and judo performance in highly trained judo athletes. Methods: Eighteen male judo athletes participated in the study and were divided into two groups: control and rapid weight loss (RWL). RWL athletes were given 48 h to cut 5% of their body mass while the control group followed their routines. Athletes performed three measurements, including hydration, body mass and three consecutive special judo fitness tests (SJFTs). At the 1st and 6th minutes following each SJFT and 1st, 6th and 15th minutes following the last SJFT, blood lactate and heart rate (HR) was monitored. Results: The effect of RWL on variables was tested with split-plot ANOVA. RWL significantly affected urine specific gravity with a higher value following weight loss compared to baseline and recovery (F2-32 = 13.2, p < 0.001). In addition, athletes’ SJFT total throw numbers differed among measurements (F2-32 = 7.70, p < 0.001). Athletes presented worse SJFT index after weight loss (F2-32 = 8.05, p = 0.01; F1-16 = 6.43, p = 0.02, respectively). HR changed significantly among measurements days and times (F28-448 = 143.10, p < 0.001). Conclusion: RWL induced dehydration and impaired heart rate recovery in highly trained judo athletes, and they could not rehydrate between competition simulated weigh-in and 15 h of recovery.
dc.description.urihttps://doi.org/10.3390/biology11040500
dc.description.urihttps://pubmed.ncbi.nlm.nih.gov/35453700
dc.description.urihttp://dx.doi.org/10.3390/biology11040500
dc.description.urihttps://doaj.org/article/0635b6663ac048ee8f1cd62199b0976a
dc.description.urihttps://dx.doi.org/10.3390/biology11040500
dc.description.urihttps://avesis.gazi.edu.tr/publication/details/30df5ec2-bf25-448a-9751-50a039ee320b/oai
dc.identifier.doi10.3390/biology11040500
dc.identifier.eissn2079-7737
dc.identifier.openairedoi_dedup___::e4bb6c6e9d57786974982dc569dcc90f
dc.identifier.orcid0000-0002-6753-1848
dc.identifier.orcid0000-0002-7668-2365
dc.identifier.pubmed35453700
dc.identifier.scopus2-s2.0-85127614001
dc.identifier.startpage500
dc.identifier.urihttps://hdl.handle.net/20.500.12597/39557
dc.identifier.volume11
dc.identifier.wos000786327300001
dc.language.isoeng
dc.publisherMDPI AG
dc.relation.ispartofBiology
dc.rightsOPEN
dc.subjectcombat sports
dc.subjectdehydration
dc.subjectjudo performance
dc.subjectweight regain
dc.subjectrules
dc.subjectjudo performance
dc.subjectQH301-705.5
dc.subjectcombat sports
dc.subjectrules
dc.subjectdehydration
dc.subjectweight regain
dc.subjectBiology (General)
dc.subjectArticle
dc.titleEffect of Rapid Weight Loss on Hydration Status and Performance in Elite Judo Athletes
dc.typeArticle
dspace.entity.typePublication
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Methods: Eighteen male judo athletes participated in the study and were divided into two groups: control and rapid weight loss (RWL). RWL athletes were given 48 h to cut 5% of their body mass while the control group followed their routines. Athletes performed three measurements, including hydration, body mass and three consecutive special judo fitness tests (SJFTs). At the 1st and 6th minutes following each SJFT and 1st, 6th and 15th minutes following the last SJFT, blood lactate and heart rate (HR) was monitored. Results: The effect of RWL on variables was tested with split-plot ANOVA. RWL significantly affected urine specific gravity with a higher value following weight loss compared to baseline and recovery (F2-32 = 13.2, p &lt; 0.001). In addition, athletes’ SJFT total throw numbers differed among measurements (F2-32 = 7.70, p &lt; 0.001). Athletes presented worse SJFT index after weight loss (F2-32 = 8.05, p = 0.01; F1-16 = 6.43, p = 0.02, respectively). HR changed significantly among measurements days and times (F28-448 = 143.10, p &lt; 0.001). 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