Evidence map›Paper›PMID 32698870›Full record

ArticleJournal of the International Society of Sports Nutrition2020

Use of nutritional supplements by elite Japanese track and field athletes.

Shogo Tabata, Fumihiro Yamasawa, Suguru Torii, Tomohiro Manabe, Hiroshi Kamada, Akira Namba, Jo Kato, Haruka Kaneko, Keitaro Tahara, Yuka Tsukahara and 1 more

Abstract read
In one paragraph

Article in Journal of the International Society of Sports Nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

11 authors.

Shogo TabataInstitute for Integrated Sports Medicine, Keio University School of Medicine, Shinanomachi 35, Shinjuku, Tokyo, Japan. s-tabata@keio.jp.ORCID http://orcid.org/0000-0001-9733-6157
Fumihiro YamasawaMedical Committee, Japan Association of Athletics Federations (JAAF), Kasumigaokamachi 4-2 Japan Sport Olympic Square 9th floor, Shinjuku, Tokyo, Japan.
Suguru ToriiMedical Committee, Japan Association of Athletics Federations (JAAF), Kasumigaokamachi 4-2 Japan Sport Olympic Square 9th floor, Shinjuku, Tokyo, Japan.
Tomohiro ManabeMedical Committee, Japan Association of Athletics Federations (JAAF), Kasumigaokamachi 4-2 Japan Sport Olympic Square 9th floor, Shinjuku, Tokyo, Japan.
Hiroshi KamadaMedical Committee, Japan Association of Athletics Federations (JAAF), Kasumigaokamachi 4-2 Japan Sport Olympic Square 9th floor, Shinjuku, Tokyo, Japan.
Akira NambaMedical Committee, Japan Association of Athletics Federations (JAAF), Kasumigaokamachi 4-2 Japan Sport Olympic Square 9th floor, Shinjuku, Tokyo, Japan.
Jo KatoMedical Committee, Japan Association of Athletics Federations (JAAF), Kasumigaokamachi 4-2 Japan Sport Olympic Square 9th floor, Shinjuku, Tokyo, Japan.
Haruka KanekoMedical Committee, Japan Association of Athletics Federations (JAAF), Kasumigaokamachi 4-2 Japan Sport Olympic Square 9th floor, Shinjuku, Tokyo, Japan.
Keitaro TaharaMedical Committee, Japan Association of Athletics Federations (JAAF), Kasumigaokamachi 4-2 Japan Sport Olympic Square 9th floor, Shinjuku, Tokyo, Japan.
Yuka TsukaharaMedical Committee, Japan Association of Athletics Federations (JAAF), Kasumigaokamachi 4-2 Japan Sport Olympic Square 9th floor, Shinjuku, Tokyo, Japan.
Kazuki SatoInstitute for Integrated Sports Medicine, Keio University School of Medicine, Shinanomachi 35, Shinjuku, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhile scientific evidence supports the efficacy of only limited nutritional supplements (NS) on sports performance, the use of NS is widespread in athletes. Given the serious issues of health damage or unintended Anti-Doping Rule Violations due to ingestion of contaminated NS in sports, accurately understanding NS practices by athletes is crucial. This study therefore elucidated the use of NS by elite Japanese track and field (TF) athletes.

methodsThe subjects were 574 Japanese TF athletes, including 275 junior athletes (under 20 years) and 299 senior athletes, who participated in international competitions from 2013 to 2018. Data on NS use were collected through pre-participation medical forms obtained from all entrants before their participation in competitions. NS users were requested to report the product names and primary components of all NS they were taking.

resultsThe overall prevalence of NS use was 63.9%. The mean number of NS products used per athlete was 1.4. The prevalence was significantly higher in women (69.2%) than in men (59.6%) (p = 0.018) and significantly higher in senior athletes (68.9%) than in junior athletes (58.9%) (p = 0.012). The prevalence of NS use was higher in long-distance runners (75.8%) and lower in jumpers (52.3%) and throwers (49.2%) than other disciplines (p < 0.001). The most prevalent components were amino acids (49.3%), followed by vitamins (48.3%), minerals (22.8%), and protein (17.8%).

conclusionsApproximately two-thirds of elite Japanese TF athletes reported the use of NS, and NS practices varied by gender, age, and discipline.

Indexed as

Athletic PerformanceTrack and FieldAdolescentAdultAthletesDietary SupplementsFemaleHumansJapanMalePrevalenceYoung AdultADRVAmino acidsErgogenic aidsJapanese athletesMineralsSupplementsTrack and fieldVitamins

Identifiers

PMID32698870
PMCPMC7374838

What OpenQuestion holds

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Registered trials

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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.