Evidence map›Paper›PMID 25713666›Full record

ArticleJournal of human kinetics2014

Intracyclic velocity variation and arm coordination for different skilled swimmers in the front crawl.

Yuji Matsuda, Yosuke Yamada, Yasushi Ikuta, Teruo Nomura, Shingo Oda

Open access · diamondAbstract read
In one paragraph

Article in Journal of human kinetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact, top 84% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
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  11. Velocity Variability and Performance in Backstroke in Elite and Good-Level Swimmers.International journal of environmental research and public health · 2022
    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

5 authors at 5 institutions in 1 country.

Yuji MatsudaDepartment of Sports Sciences, Japan Institute of Sports Sciences, Tokyo, Japan.
Yosuke YamadaJapan Society for the Promotion of Science, Tokyo, Japan.
Yasushi IkutaGraduate School of Education, Osaka Kyoiku University, Osaka, Japan.
Teruo NomuraGraduate School of Science and Technology, Kyoto Institute of Technology, Kyoto, Japan.
Shingo OdaFaculty of Health and Well-being, Kansai University, Osaka, Japan.
Japan Society for the Promotion of Science · JPJapan Sport Council · JPKansai University · JPKyoto Institute of Technology · JPOsaka Kyoiku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to examine whether the intracyclic velocity variation (IVV) was lower in elite swimmers than in beginner swimmers at various velocities, and whether differences may be related to arm coordination. Seven elite and nine beginner male swimmers swam front crawl at four different swimming velocities (maximal velocity, 75%, 85%, and 95% of maximal swimming velocity). The index of arm coordination (IDC) was calculated as the lag time between the propulsive phases of each arm. IVV was determined from the coefficient of variation of horizontal velocity within one stroke cycle. IVV for elite swimmers was significantly lower (26%) than that for beginner swimmers at all swimming velocities (p<0.01, 7.28 1.25% vs. 9.80 1.70%, respectively). In contrast, the IDC was similar between elite and beginner swimmers. These data suggest that IVV is a strong predictor of the skill level for front crawl, and that elite swimmers have techniques to decrease IVV. However, the IDC does not contribute to IVV differences between elite and beginner swimmers.

Indexed as

arm coordinationintracyclic velocity variationperformanceswimming

Identifiers

PMID25713666
PMCPMC4327381
OpenAlexW2138324446

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.