| Title |
The Effect of Fluid Intake Following Dehydration on Subsequent Athletic and Cognitive Performance: a Systematic Review and Meta-analysis
|
|---|---|
| Published in |
Sports Medicine - Open, March 2017
|
| DOI | 10.1186/s40798-017-0079-y |
| Pubmed ID | |
| Authors |
Danielle McCartney, Ben Desbrow, Christopher Irwin |
| Abstract |
The deleterious effects of dehydration on athletic and cognitive performance have been well documented. As such, dehydrated individuals are advised to consume fluid in volumes equivalent to 1.25 to 1.5 L kg(-1) body mass (BM) lost to restore body water content. However, individuals undertaking subsequent activity may have limited time to consume fluid. Within this context, the impact of fluid intake practices is unclear. This systematic review investigated the effect of fluid consumption following a period of dehydration on subsequent athletic and cognitive performance. PubMed (MEDLINE), Web of Science (via Thomas Reuters) and Scopus databases were searched for articles reporting on athletic (categorized as: continuous, intermittent, resistance, sport-specific and balance exercise) or cognitive performance following dehydration of participants under control (no fluid) and intervention (fluid intake) conditions. Meta-analytic procedures determined intervention efficacy for continuous exercise performance. Sixty-four trials (n = 643 participants) derived from 42 publications were reviewed. Dehydration decreased BM by 1.3-4.2%, and fluid intake was equivalent to 0.4-1.55 L kg(-1) BM lost. Fluid intake significantly improved continuous exercise performance (22 trials), Hedges' g = 0.46, 95% CI 0.32, 0.61. Improvement was greatest when exercise was performed in hotter environments and over longer durations. The volume or timing of fluid consumption did not influence the magnitude of this effect. Evidence indicating a benefit of fluid intake on intermittent (10 trials), resistance (9 trials), sport-specific (6 trials) and balance (2 trials) exercise and on cognitive performance (15 trials) was less apparent and requires further elucidation. Fluid consumption following dehydration may improve continuous exercise performance under heat stress conditions, even when the body water deficit is modest and fluid intake is inadequate for complete rehydration. |
X Demographics
The data shown below were collected from the profiles of 37 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 12 | 32% |
| United Kingdom | 3 | 8% |
| Australia | 2 | 5% |
| France | 1 | 3% |
| Norway | 1 | 3% |
| Brazil | 1 | 3% |
| New Zealand | 1 | 3% |
| Poland | 1 | 3% |
| Dominican Republic | 1 | 3% |
| Other | 1 | 3% |
| Unknown | 13 | 35% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 19 | 51% |
| Scientists | 12 | 32% |
| Practitioners (doctors, other healthcare professionals) | 5 | 14% |
| Science communicators (journalists, bloggers, editors) | 1 | 3% |
Mendeley readers
The data shown below were compiled from readership statistics for 146 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 146 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 28 | 19% |
| Student > Master | 23 | 16% |
| Student > Ph. D. Student | 12 | 8% |
| Researcher | 11 | 8% |
| Student > Postgraduate | 9 | 6% |
| Other | 24 | 16% |
| Unknown | 39 | 27% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 47 | 32% |
| Nursing and Health Professions | 19 | 13% |
| Medicine and Dentistry | 12 | 8% |
| Biochemistry, Genetics and Molecular Biology | 5 | 3% |
| Agricultural and Biological Sciences | 5 | 3% |
| Other | 12 | 8% |
| Unknown | 46 | 32% |
Attention Score in Context
This research output has an Altmetric Attention Score of 25. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 09 March 2018.
All research outputs
#1,306,220
of 22,959,818 outputs
Outputs from Sports Medicine - Open
#112
of 476 outputs
Outputs of similar age
#30,341
of 334,650 outputs
Outputs of similar age from Sports Medicine - Open
#2
of 10 outputs
Altmetric has tracked 22,959,818 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 94th percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 476 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 25.1. This one has done well, scoring higher than 76% of its peers.
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We're also able to compare this research output to 10 others from the same source and published within six weeks on either side of this one. This one has scored higher than 8 of them.