Evidence map›Paper›PMID 24148197›Full record

ArticleJournal of the International Society of Sports Nutrition2013

Does carbohydrate supplementation enhance tennis match play performance?

Rodrigo Vitasovic Gomes, Caroline Dario Capitani, Carlos Ugrinowitsch, Michael Christopher Zourdos, Jaime Fernandez-Fernandez, Alberto Mendez-Villanueva, Marcelo Saldanha Aoki

Abstract read
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Article in Journal of the International Society of Sports Nutrition, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Review
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

7 authors.

Rodrigo Vitasovic Gomes
Caroline Dario Capitani
Carlos Ugrinowitsch
Michael Christopher Zourdos
Jaime Fernandez-Fernandez
Alberto Mendez-Villanueva
Marcelo Saldanha AokiSchool of Arts, Sciences and Humanities, University of São Paulo, Av Arlindo Bettio, 1000, São Paulo 03828-000, Brazil. aoki.ms@usp.br.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCarbohydrate (CHO) ingestion may be an interesting approach to avoid significant decrement to the tennis match performance. The aim of the present investigation was to assess the effects of CHO supplementation on tennis match play performance.

methodsTwelve young tennis players (18.0 ± 1.0 years; 176 ± 3.4 cm; 68.0 ± 2.3 kg; body fat: 13.7 ± 2.4%) with national rankings among the top 50 in Brazil agreed to participate in this study, which utilized a randomized, crossover, double blind research design. The experiment was conducted over a 5-day period in which each player completed two simulated tennis matches of a 3-hour duration. The players received either a CHO or a placebo (PLA) drinking solution during simulated tennis matches. Athlete's performance parameters were determined by filming each match with two video cameras. Each player was individually tracked for the entire duration of the match to measure the following variables: (1) games won; (2) rally duration; (3) strokes per rally; (4) effective playing time (%); (5) aces; (6) double faults; (7) first service in; (8) second service in; (9) first return in and (10) second return in.

resultsThere were no differences between trials in any of the variables analyzed.

conclusionsCHO supplementation did not improve tennis match play performance under the present experimental conditions.

Identifiers

PMID24148197
PMCPMC3874750

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