Juntendo Medical Journalan affiliated journal, Journal of Sports Medicine and Science (Sportology)

Instructions to Authors


Instructions to Authors
(Revised  May 20, 2020 )

Instructions to Authors

Authors are requested to follow these instructions carefully. Manuscripts not prepared accordingly will not be accepted.


1. Juntendo Medical Journal aims to introduce achievements in the fields of Basic and Clinical Medicine, Sportology (Sports Medicine), Nursing, Preventive Medicine and Public Health. Articles contributed are classified into the following categories: original articles, reviews, minireviews, case reports, study protocols and perspective articles. The articles must be written in English. It is the authors’ responsibility to have their manuscripts checked by a native speaker, and a certificate of the check should be presented when the manuscript is submitted.
Authors should respect the privacy of patients and their families. Identifying details should be omitted if they are not essential, but patient data should never be altered or falsified in an attempt to attain anonymity. Complete anonymity is difficult to achieve, and informed consent should be obtained if there is any doubt.
2. To be accepted in Juntendo Medical Journal, Medical research involving human subjects must conform with the WMA (World Medical Association) Declaration of Helsinki (https://www.wma.net/policies-post/wma-declaration-of-helsinki-ethical-principles-for-medical-research-involving-human-subjects/). In addition, research using animals must be carried out in accord with the guidelines of each institution based on applicable government statutes. For Japanese research institutions, the applicable statute is the Ministry of the Environment’s notification “Criteria for the Care and Keeping of Laboratory Animals and Alleviation of their Suffering.”
When a study has undergone evaluation by an ethics committee, etc., the result of that examination must be attached when submitting the manuscript. For research involving humans or animals, make sure the manuscript clearly states that all ethical regulations were observed.
A clinical trial is defined as any research project that prospectively assigns human participants to intervention or comparison groups to study the cause-and-effect relationship between an intervention and a health outcome. All clinical trials must be registered at an appropriate online public registry. The following items are to be stated in the Methods section: how informed consent was obtained from the study participants (i.e., oral or written), the approval number from the institutional review board or ethics committee, a registration ID for the trial, and the trial's start and end dates.
3. The Juntendo Medical Journal accepts manuscripts over a wide area of medical topics from members of the Juntendo Medical Society as well as other researchers in Japan and around the world involved in medical science.
4. Rules governing the length of papers including figures and tables are as follows. Original Articles and minireviews should not exceed 10 printed pages. Case reports should not exceed 4 printed pages. Review articles should not exceed 12 printed pages. The total number of pages can be estimated as described below: Text, about 600 words/page; References, about 20/page; Figures, four 7×5 cm figures occupy about 1 page.
5. With the exception of articles requested by the Editorial Committee, publication expenses are borne by the author. Authors will be notified of the exact sum.
The Juntendo Medical Journal is the official journal of the Juntendo Medical Society, and applies the Creative Commons Attribution License (CC BY) to all works published in the Journal on and after April 1, 2016. The Juntendo Medical Society retains ownership of the copyright for all articles in Juntendo Medical Journal, but anyone may download, reuse, copy, reprint, distribute, or modify content in the Journal starting from Vol.62 No.2, provided it is accurately attributed. No permission is required from either the authors or the Juntendo Medical Society. A completed “Declaration of Copyright Transfer” should be presented at the time of manuscript submission.
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Submissions should be original and unique; all submissions to the Juntendo Medical Journal will be subjected to an automated computer search (Similarity Check) for reused or plagiarized materials carried out by Crossref.org.
Authors (collaborating authors included) must sign and submit a form attesting that the submitted experimental results are unpublished and not under consideration for publication elsewhere.
8. Regarding conflicts of interest, if the authors or a commercial entity they help guide or control may benefit financially from major or minor results reported in the submitted manuscript, this conflict of interest must be stated in the text.

Editorial and peer review process

Juntendo Medical Journal uses single-blind peer review.
When a manuscript is submitted to Juntendo Medical Journal, it is assigned to the Editor-in-Chief, who performs initial screening. Manuscripts that do not fit the journal’s scope or are not deemed suitable for publication are rejected without review. For peer reviewing, the manuscripts that pass through the initial screening are assigned to two reviewers by the Editor-in-Chief. Reviewers are selected based on their expertise, reputation and previous experience as peer reviewers. The deadline for submission of the reviewers’ reports is basically 3 weeks.
Upon receipt of the two reviewers’ reports, the Editor-in-Chief makes the first decision on the manuscript. If the decision is to request revision of the manuscript, authors are requested to re-submit their revised manuscript within one to six months, depending on the comments of the reviewers. Revised manuscripts submitted after this deadline may be treated as new submissions. The Editor-in-Chief may send the revised manuscripts to peer reviewers for their feedback or may use his or her own judgment to assess how closely the authors have followed the Editor-in-Chief’s and the reviewers’ comments on the original manuscript. The Editor-in-Chief is responsible for making the final decision on each manuscript.

Reviewer Suggestions

When submitting a manuscript to Juntendo Medical Journal, authors may suggest reviewers that they would like included in or excluded from the peer review process. The Editor-in-Chief may consider these suggestions but is under no obligation to follow them.

Editorial Decisions

If a manuscript satisfies the journal’s requirements and represents a significant contribution to the published literature, the Editor-in-Chief may recommend acceptance for publication in Juntendo Medical Journal. If a manuscript does not meet the journal’s requirements for acceptance, but it has a high probability of acceptance after minor or major revision, the Editor-in-Chief may ask the authors to revise it accordingly. Revised manuscripts must be submitted within one to six months, depending on the comments of the reviewers; otherwise they will be treated as new submissions. If a manuscript does not meet the journal’s requirements for acceptance or revision, the Editor-in-Chief may recommend rejection.

Criteria of Acceptance

If a manuscript satisfies the journal’s requirements and represents a valuable contribution to the published literature, the Editor-in-Chief may recommend the acceptance for publication in Juntendo Medical Journal.
The acceptance criteria of articles published in Juntendo Medical Journal are as follows; within the subject area as outlined in the Aims and Scope, novel and important to the field, scientifically, ethically, and otherwise rigorous, of interest to the journal’s broad audience, and thoughtfully constructed and well written in English.
If a manuscript does not meet the journal’s requirements for acceptance or revision, the Editor-in-Chief may recommend the rejection.

Submission of manuscripts

Manuscripts should be sent to the following address (submission by email is also allowed).

Juntendo Medical Journal Editorial Office
Shinkousha K.K.
19-2 Sarugakucho, Shibuya-ku, Tokyo, 150-0033 Japan
Tel: +81-3-3462-1182
Email: j-igaku.edit@shinkousha.co.jp

If authors have any questions about submission of manuscripts, please contact us at the above phone number or e-mail address.

Arrangement of manuscripts

Manuscripts (including references, tables, legends, etc.) must be typewritten using double spacing on A4 paper with a 3 cm margin and with page numbers indicated on the lower right. Except for standard, widely understood abbreviations, each abbreviation should be written out in full in its first occurrence, with the abbreviation specified in parentheses.
Manuscripts should be arranged in the following order: 1 title page; 2 main text; 3 tables together with any accompanying legends; 4 figure legends; 5 figures; 6 anything else.
Each of the above items should begin on a separate page.

Title page

The first page should include:
• The title of the manuscript in sentence case. No abbreviations other than gene names or in common use.
• Full names of all authors and ORCID (http://orcid.org) if desired.
• Affiliations of the authors indicated by numbers (not symbols).
• Equal contribution, if applicable, indicated by asterisk.
• Name, full postal address, including street number and name, and e-mail address of the corresponding author(s).
• Key words (no more than five key words). Refer to Medical Subject Headings in MeSH or Index Medicus.
• Running title preceded by the first author’s name (maximum 120 characters with spaces, including the author’s name).


The second (and if necessary the third) page of the manuscript should contain only the abstract (maximum 250 words) and key words. The abstract must be fully comprehensible without reference to the text.
Abstracts should be divided into sections as follows:
  1. Objective:
  2. Materials (or “Design”):
  3. Methods (or “Interventions”):
  4. Results:
  5. Conclusions:

Section headings

Manuscripts should be divided into the following sections and presented in this order: Introduction; Materials and Methods; Results; Discussion; Acknowledgements; Funding; Authorsʼ contributions; Conflicting interest statement; and References.


All contributors who do not meet the criteria for authorship should be listed in an Acknowledgements section. Examples of those who might be acknowledged include a person who provided purely technical help, or a department chair who provided only general support. If you do not have anyone to acknowledge, please write "Not applicable" in this section.


All articles should have a funding acknowledgement statement included in the manuscript in the form of a sentence under a separate heading entitled “Funding” directly after Acknowledgements section, if applicable. The funding agency should be written out in full, followed by the grant number in brackets. Multiple grant numbers should be separated by comma and space. Where the research was supported by more than one agency, the different agencies should be separated by semi-colon, with “and” before the final funder. If the research is not funded by a specific project grant, please state in the manuscript as follows: “The author(s) received no financial support for the research”/”No funding was received”.

Authors' contributions

The individual contributions of authors to the manuscript should be specified in this section after Funding section. Please use initials to refer to each author's contribution in this section, for example: AU analyzed and interpreted the patient data regarding the hematological disease. KT performed the histological examination of the liver, and was a major contributor in writing the manuscript. All authors read and approved the final manuscript.

Conflicting interest statement

It is the policy of Juntendo Medical Journal to require a declaration of conflicting interests from all authors. Please ensure that a “Conflicting interest statement” is included at the end of the manuscript, after Authors’ contributions section and prior to References. If no conflict exists, please state that “The Author(s) declare(s) that there is no conflict of interest”. If there is a conflict, please include it in a “Conflicting interest statement” section.


References, including those given in tables and figure legends, should be numbered sequentially in the order they appear in the text and listed in numerical order at the end of the manuscript under the heading“References”. In the text, citations should be indicated as superscript numbers with an end parenthesis character following each citation number. Three or more consecutive citations should be indicated as a range using a hyphen, e.g.“3)-5)”. Any cited URL should be provided in the text, enclosed in parentheses. Journal titles should be abbreviated as shown in Index Medicus and List of Journals Indexed. When there are six or fewer authors, all should be listed; when there are seven or more, include only the first three and add "et al." Please note the following examples.
Example citation list entries: (1) from a journal, (2) from a book
1) You WC, Blot WJ, Li JY, et al: Precancerous gastric lesions in a population at high risk of stomach cancer. Cancer Res, 1993; 53: 1317-1321.
2) Matsumoto A, Arai Y: Hypothalamus. In: Matsumoto A, Ishii S, eds. Atlas of Endocrine Organs. Berlin: Springer-Verlag, 1992: 25-38.


Tables with suitable titles and numbered with Arabic numerals should be placed at the end of the text on separate sheets (one table per page). They should be understandable without referring to the text. Column headings should be kept as brief as possible, with units for numerical information included in parentheses. Footnotes should be labeled a), b), c), etc. and typed on the same page as the table they refer to.

Figures and legends

Figures should also be submitted on separate pages at the end of the article using a separate page for each figure. They should be numbered in order of appearance with Arabic numerals (e.g. Fig. 1, Fig. 2). Author(s) must pay printing costs for color photographs. Electron micrographs should contain a scale. Individual figures may not exceed the size of a Journal page. Graphs or drawings containing typewritten characters are unacceptable. Numbers, letters and symbols must be large enough to be legible after reduction. In principle, figures should be suitable for publication, and jpg digital files preferred. Each figure must have an accompanying legend, which should be understandable without reference to the text. All figure legends are to be double spaced, and should be collected together as text page(s), rather than being attached to their respective figures.
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