Evidence map›Paper›PMID 31915479›Full record

ArticleJournal of human kinetics2019

Hydration Status After an Ironman Triathlon: A Meta-Analysis.

Caio V Sousa, Samuel da S Aguiar, Rafael Dos R Olher, Marcelo M Sales, Milton R de Moraes, Pantelis T Nikolaidis, Thomas Rosemann, Beat Knechtle, Herbert G Simões

Open access · diamondAbstract read
In one paragraph

Article in Journal of human kinetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.4field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
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  7. Article
  8. Self-Selected Pacing During a World Record Attempt in 40 Ironman-Distance Triathlons in 40 Days.International journal of environmental research and public health · 2020
    Article
  9. Celebrating 40 Years of Ironman: How the Champions Perform.International journal of environmental research and public health · 2019
    Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Caio V SousaCatholic University of Brasília, Brasília, Brazil.
Samuel da S AguiarGoias State University, Goiás, Brazil.
Rafael Dos R OlherCatholic University of Brasília, Brasília, Brazil.
Marcelo M SalesGoias State University, Goiás, Brazil.
Milton R de MoraesCatholic University of Brasília, Brasília, Brazil.
Pantelis T NikolaidisExercise Physiology Laboratory, Nikaia, Greece.
Thomas RosemannInstitute of Primary Care, University of Zurich, Zurich, Switzerland.
Beat KnechtleInstitute of Primary Care, University of Zurich, Zurich, Switzerland.
Herbert G SimõesCatholic University of Brasília, Brasília, Brazil.
Universidade Católica de Brasília · BRUniversidade Estadual de Goiás · BRUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Ironman is one of the most popular triathlon events in the world. Such a race involves a great number of tactical decisions for a healthy finish and best performance. Dehydration is widely postulated to decrease performance and is known as a cause of dropouts in Ironman. Despite the importance of hydration status after an Ironman triathlon, there is a clear lack of review and especially meta-analysis studies on this topic. Therefore, the objective was to systematically review the literature and carry out a meta-analysis investigating the hydration status after an Ironman triathlon. We conducted a systematic review of the literature up to June 2016 that included the following databases: PubMed, SCOPUS, Science Direct and Web of Science. From the initial 995 references, we included 6 studies in the qualitative analysis and in the meta-analysis. All trials had two measures of hydration status after a full Ironman race. Total body water, blood and urine osmolality, urine specific gravity and sodium plasma concentration were considered as hydration markers. Three investigators independently abstracted data on the study design, sample size, participants' and race characteristics, outcomes, and quantitative data for the meta-analysis. In the pooled analysis, it seems that the Ironman event led to a moderate state of dehydration in comparison to baseline values (SMD 0.494; 95% CI 0.220 to 0.767; p = 0.001). Some evidence of heterogeneity and consistency was also observed: Q = 19.6; I

Indexed as

cyclingdehydrationendurancerunningswimming

Identifiers

PMID31915479
PMCPMC6942476
OpenAlexW2995643097

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.