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This study was funded by an agreement between the Spanish National Sports Council and the Technical University of Madrid (Convenio CSD-UPM para proporcionar apoyo tecnico a las Federaciones Deportivas espanolas).

Analysis of institutional authors

Rodriguez-Romo, GabrielAuthorYvert, ThomasAuthorDiaz De Durana, Alfonso L.Author

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June 9, 2019
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Article

No Association Between ACTN3 R577X Polymorphism and Elite Judo Athletic Status

Publicated to:International Journal Of Sports Physiology And Performance. 8 (5): 579-581 - 2013-01-01 8(5), DOI: 10.1123/ijspp.8.5.579

Authors: Rodriguez-Romo, Gabriel; Yvert, Thomas; de Diego, Alfonso; Santiago, Catalina; Diaz de Durana, Alfonso L.; Carratala, Vicente; Garatachea, Nuria; Lucia, Alejandro;

Affiliations

European Univ & Res Inst I 12, Madrid, Spain - Author
European Univ Madrid, Sch Doctoral Res, Madrid, Spain - Author
Tech Univ Madrid, Fac Phys Act & Sport Sci, Madrid, Spain - Author
Univ Valencia, Fac Phys Act & Sport Sci, Valencia, Spain - Author
Univ Zaragoza, Fac Hlth & Sport Sci, Zaragoza, Spain - Author
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Abstract

The authors compared ACTN3 R577X genotype and allele frequencies in the majority of all-time-best Spanish judo male athletes (n = 108) and 343 ethnically matched nonathletic men. No between-groups differences were found in allele (P = .077) or genotype distributions (P = .178). Thus, the R577X polymorphism was not significantly associated with the status of being an elite judo athlete, at least in the Spanish population. The contribution of genetics to sports-related phenotype traits is undeniable with some genotypes, of which ACTN3 R577X is currently the leading candidate, partly distinguishing individuals predisposed to either endurance or power sports. However, few athletic events can be categorized as purely power or endurance based. Although genetic testing (ie, for ACTN3 R577X) is already being marketed to predict sports talent and potential of young children, its usefulness is still questionable, at least in competitive judo.

Keywords

ActininAdolescentAdultAgedAllelesDnaGene frequencyGeneticsGenotypeHigh performanceHumansJudokasMaleMartial artsMiddle agedPerformancePhenotypePhysical endurancePolymorphism, geneticPowerSportsYoung adult

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal International Journal Of Sports Physiology And Performance due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2013, it was in position 11/81, thus managing to position itself as a Q1 (Primer Cuartil), in the category Sport Sciences.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 2.55, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-10, the following number of citations:

  • WoS: 10
  • Scopus: 12
  • Europe PMC: 3
  • Google Scholar: 56

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-10:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 69.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 80 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/84254/

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (RODRIGUEZ ROMO, GABRIEL) .