Focus and scope

Kronos is an international scientific publication that, since its inception, has aimed to be a point of reference in knowledge within the field of physical activity and sport.

The journal is published bi-annually and those articles that pass the peer review process are published in it.

Kronos is e-published and open access by the Faculty of Physical Activity and Sports Sciences of the European University of Madrid.

The journal is aimed at all those people from the academic and professional field interested in research in the physical activity and sports sciences with the purpose of communicating and disseminating scientific production in the different areas of physical education and sports sciences.

Section policies

Peer review process

Kronos selects articles by double blind peer review system.
All articles received will be reviewed in the first instance by the editorial committee, who will decide if the article follows the editorial line of the journal and if it meets the formal requirements established in the authors guidelines.
Manuscripts that do not meet these formal characteristics will be returned to the authors to adapt the manuscript to current guidelines, and those that do not follow the editorial line will be rejected for publication in the journal.
The works that meet the guidelines properly and follow the editorial line of the journal will be sent anonymously to two external experts for their review.

The journal’s editorial committee, through its editor-in-chief, will communicate to the corresponding author the result of the review process (rejected, accepted with modifications, or accepted), as well as the suggestions and comments of the reviewers. If the manuscript is accepted with modifications, the authors must resubmit a new version of the article, which will be reviewed again by the same reviewers. The authors will provide a letter to the editor, in which they will indicate the content of the article modifications. If the authors decide not to follow the reviewers’ recommendations, they can justify their decision in the same letter.

The average evaluation time will be 60 days, counting from the date of acknowledgment of receipt. Once the process is finished, the editorial committee will communicate the resolution to the article corresponding author.
Accepted manuscripts will be published in the first issue available and according to the needs of the journal. Authors will know this information and the publication date at the time of acceptance.

Publication frequency

The Journal Kronos is published bi-annually with two issues per year.

Open access policy

This journal provides immediate open access to its content on the principle of making research freely available to the public, promoting a greater global exchange of knowledge.
This journal is based on the Code of Conduct of the Publications Ethics Committee of COPE / Commitee on Publication Ethics, COPE.


The content of the journal is replicated in ABACUS, institutional repository of the European University of Madrid (https://abacus.universidadeuropea.es/handle/11268/82) allowing the creation of permanent archives of the journal for preservation and restoration purposes.

Classify and indexing

Cataloguing Data

  • Title: Revista Kronos
  • ISSN: 1579-5225
  • e-ISSN: 2603-9052
  • Legal Deposit: S. 1.007-2003
  • Periocity: Two issues per year
  • Journal birth: 2002
  • Editor: Rosa Bielsa Hierro
  • Publisher: Universidad Europea de Madrid, Facultad de Ciencias de la Actividad Física y el Deporte
  • Publishing place: Madrid, Spain
  • Field of Study:  Physical activity and sport
  • License: Creative Commons. Attribution – Non-Commercial – No Derivative Works 4.0 International (CC BY-NC-ND 4.0)


“Kronos”. Scientific journal of physical education and sports is indexed in the journal portals, repositories, open science harvesters and in the following bibliographic databases:

Latindex Online Regional Information System for Scientific Journals from Latin America, the Caribbean, Spain and Portugal.

SportDiscus™ is the database leader in the world in sports medicine, health, fitness and sports. Since more than 30 years, SIRC has provided access to full-text content and bibliographical references in areas such as sports medicine, physical education, coaching and training, art and history.

MIAR (Information Matrix for the Analysis of Journals). System to measure quantitatively the visibility of periodicals in Social Sciences according to their presence in different types of databases.

EBSCO-Host is a scientific database of information about medicine, physics, chemistry, economy, education and other fields. It`s scientific search system is based on a WEB-accessible computer application, which provides the full text and/or abstracts of articles from scientific journals reference books and other types of publications from a varied set or of disciplines which are updated periodically.

Dissemination gate of the Hispanic scientific production.

RESH (Spanish Journals of Social Sciences and humanities) is a system of information that integrates quality indicators for the Spanish scientific journals about Social Sciences and Humanities.

Universidad Europea de Madrid Repository of Scientific Research Output.  Open Access seeks to increase the visibility and impact of the results of this research activity, while at the same time complying with international policies, protocols and standards for repository interoperability and description of OAI records.

The CIEPS, also known as the ISSN International Centre, is an intergovernmental organization which manages at the international level the identification and the description of serial publications and ongoing resources, print and online, in any subject.

The Catalog of the National Library of Spain.

Publication and edition ethics

The authors, by submitting their papers to the journal Kronos, accept the Publication Ethics Policy and possible malpractices established by the publisher Universidad Europea de Madrid – Facultad de Ciencias de la Actividad Física y el Deporte, which adheres to the international agreements set forth in the COPE Best Practice Guidelines for Journal Editors and the International Standards for editors and authors published by the Committee on Publication Ethics.
The journal Kronos submits all its articles to the Turnitin plagiarism detection and prevention software.
e-ISSN: 2603-9052
URL: https://revistakronos.info/
European University of Madrid: Madrid, Spain

Creative Commons. Attribution – Non-Commercial – No Derivative Works 4.0 International (CC BY-NC-ND 4.0)

Publication ethics and malpractice statement

Publication Ethics and Publication Malpractice Statement based on Elsevier recommendations and COPE’s Best Practice Guidelines for Journal Editors (COPE Best Practice Guidelines for Journal Editors y el International Standards for editors and authors published by the Committee on Publication Ethics).

Ethical guidelines for publication

The publication of an article in Kronos journal is a process of permanent knowledge improvement. It is necessary to agree upon standards of expected ethical behavior for all parties involved in the act of publishing: the author, the journal editor and the peer reviewer.


Reporting standards
Authors of original research should present an accurate description of the work performed as well as an objective discussion of its significance. Underlying data should be represented accurately in the manuscript. Articles should contain enough detail and references to permit others to replicate the work. Fraudulent or knowingly inaccurate statements constitute unethical behavior and are unacceptable.

Data access and retention
Authors may be asked to provide the raw data in connection with a paper for editorial review and should in any case be prepared to retain such data for a reasonable time after publication.

Originality and plagiarism
Authors should ensure that they have entirely written original works, and if the authors use the work and/or words of others this needs to be appropriately referenced.

Multiple, redundant or concurrent publication
Authors should not, in general, publish manuscripts describing essentially the same research in more than one journal or publication. Submitting the same manuscript to more than one journal concurrently constitutes unethical publishing behavior and is unacceptable.

Acknowledgement of sources
Proper acknowledgment of the work of others must always be given. Authors should cite publications that have been influential in determining the nature of the reported work.

Article authorship
Authorship should be limited to those who have made a significant contribution to the conception, design, execution, or interpretation of the reported study. All those who have made significant contributions should be listed as co-authors. When others have participated in certain substantive aspects of the research project, they should be acknowledged or listed as contributors. The corresponding author should ensure that all co-authors included are appropriate and no inappropriate co-authors are included on the article. All authors must see and approve the final version of the paper and agree to its submission for publication.

Hazards and human or animal subjects
If the work involves chemicals, procedures or equipment that have any unusual hazards inherent in their use, the author must clearly identify these in the manuscript. If the work involves the use of animal or human subjects, the author should ensure that the manuscript contains a statement that all procedures were performed in compliance with relevant laws and institutional guidelines and that they have been approved by the appropriate institutional committee(s). Authors should include a statement in the manuscript that informed consent was obtained for experimentation with human subjects. The privacy rights of human subjects must always be observed.

Disclosure and conflicts of interest
All authors should disclose in their manuscript any financial or other substantive conflict of interest that might be construed to influence the results or interpretation of their manuscript. All sources of financial support for the project should be disclosed.

Fundamental errors in published works
When an author discovers a significant error or inaccuracy in his/her own published work, it is the author’s obligation to promptly notify the journal editor and cooperate with the editor to retract or correct the paper.


Publication decisions
The editor of Kronos journal is responsible for deciding which of the articles submitted to the journal should be published. The editor may be guided by the policies of the journal’s editorial board and constrained by such legal requirements as shall then be in force regarding libel, copyright infringement and plagiarism. The editor may confer with other editors or reviewers in making this decision.

Fair play
An editor will at any time evaluate manuscripts for their intellectual content without regard to race, gender, sexual orientation, religious belief, ethnic origin, citizenship, or political philosophy of the authors.

The editor and any editorial staff must not disclose any information about a submitted manuscript to anyone other than the corresponding author, reviewers, potential reviewers, other editorial advisers or the publisher, as appropriate.

Disclosure and conflicts of interest
Unpublished materials disclosed in a submitted manuscript must not be used in an editor’s own research without the express written consent of the author.

Involvement and cooperation in investigations
The publisher shall take appropriate measures to respond in the event of an ethical complaint concerning a submitted manuscript or a published article. Such measures shall include assessment of the complaint or complaint filed, contacting the author of the manuscript, and if the complaint is admitted, publication of a correction or retraction. In certain cases, the relevant institutions and research bodies may be informed of the outcome of such a request. Each notified act of unethical behavior will be examined even if it is discovered years after its publication.


Contribution to editorial decisions
Peer review assists the editor in making editorial decisions and through the editorial communications with the author may also assist the author in improving the paper.

Any selected referee who feels unqualified to review the research reported in a manuscript or knows that its prompt review will be impossible should notify the editor and excuse himself from the review process.

Any manuscripts received for review must be treated as confidential documents. They must not be shown to or discussed with others except as authorized by the editor.

Standards of objectivity
Reviews should be conducted objectively. Personal criticism of the author is inappropriate. Referees should express their views clearly with supporting arguments.

Acknowledgement of sources
Reviewers should identify relevant published work that has not been cited by the authors. Any statement that an observation, derivation, or argument had been previously reported should be accompanied by the relevant citation. A reviewer should also call to the editor’s attention any substantial similarity or overlap between the manuscript under consideration and any other published paper of which they have personal knowledge.

Disclosure and conflict of interest
Privileged information or ideas obtained through peer review must be kept confidential and not used for personal advantage. Reviewers should not consider manuscripts in which they have conflicts of interest resulting from competitive, collaborative, or other relationships or connections with any of the authors, companies, or institutions connected to the papers.

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