Evidence map›Paper›PMID 35562833›Full record

ArticleBMC sports science, medicine & rehabilitation2022

The effect of expertise on postural control in elite sport ju-jitsu athletes.

Anna Akbaş, Wojciech Marszałek, Sławomir Drozd, Wojciech Czarny, Paweł Król, Krzysztof Warchoł, Kajetan J Słomka, Marian Rzepko

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC sports science, medicine & rehabilitation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

2 citing papers in PubMed, 8 citations in OpenAlex.

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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

8 authors at 2 institutions in 1 country.

Anna AkbaşDepartment of Motor Human Behavior, Institute of Sport Sciences, Academy of Physical Education, 72a Mikołowska Str., 40-065, Katowice, Poland. a.akbas@awf.katowice.pl.ORCID http://orcid.org/0000-0002-1244-1853
Wojciech MarszałekDepartment of Motor Human Behavior, Institute of Sport Sciences, Academy of Physical Education, 72a Mikołowska Str., 40-065, Katowice, Poland.
Sławomir DrozdInstitute of Physical Culture, University of Rzeszów, 16c Aleja Rejtana Str., 35-959, Rzeszów, Poland.
Wojciech CzarnyInstitute of Physical Culture, University of Rzeszów, 16c Aleja Rejtana Str., 35-959, Rzeszów, Poland.
Paweł KrólInstitute of Physical Culture, University of Rzeszów, 16c Aleja Rejtana Str., 35-959, Rzeszów, Poland.
Krzysztof WarchołInstitute of Physical Culture, University of Rzeszów, 16c Aleja Rejtana Str., 35-959, Rzeszów, Poland.
Kajetan J SłomkaDepartment of Motor Human Behavior, Institute of Sport Sciences, Academy of Physical Education, 72a Mikołowska Str., 40-065, Katowice, Poland.
Marian RzepkoInstitute of Physical Culture, University of Rzeszów, 16c Aleja Rejtana Str., 35-959, Rzeszów, Poland.
University of Rzeszów · PLAkademii Wychowania Fizycznego im. Jerzego Kukuczki w Katowicach · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDue to the high postural control demands of sport ju-jitsu, it is likely that long-term sport ju-jitsu training may induce sport-specific adaptations in postural control, especially in positions directly related to combat. The aim of the study was to assess the differences in postural control between elite sport ju-jitsu athletes and untrained controls in non-ecological and ecological conditions and to investigate the relative contribution of spinal and supraspinal mechanisms to postural control in expert athletes.

methodsThe study was conducted on eleven male elite ju-jitsu athletes and ten non-athletes. The data was collected with the use of a force plate under two conditions: quiet standing and ju-jitsu combat stance. Apart from the standard analysis of the spatial-temporal parameters of center of foot pressure, non-linear measures were used, namely rambling-trembling and sample entropy. The non-parametric Mann-Whitney U test was used to compare both groups.

resultsThe main findings of the study showed that in quiet standing, elite ju-jitsu athletes and non-athletes had comparable postural control in both the anterior-posterior and mediolateral planes. In contrast, in the combat stance, elite athletes had lower values of postural sway and rambling component (range and rms) and higher values of sample entropy in comparison to the non-athletes (p < 0.05). No differences were found in the trembling component of sway between groups in the combat stance (p < 0.05).

conclusionsSmaller postural sway and its rambling component in sport ju-jitsu athletes may indicate the more precise control of center of foot pressure and improved ability in estimating its position. The sample entropy results confirmed that the displacement of center of foot pressure for sport ju-jitsu athletes was more irregular, which demonstrates greater automatization in postural control. The results also confirm the importance of ecological validity in investigating postural adaptations associated with sports expertise.

Indexed as

Ecological conditionsEquilibriumRambling-tremblingSample entropy

Identifiers

PMID35562833
PMCPMC9101935
OpenAlexW4280572816

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.