Opinion pieces cover a wide variety of topics that are of current interest in sports injury prevention and sports biomechanics and highlight their interaction with health and society. They may discuss policy, ethics, science, or society and should be written in an accessible, non-technical style. They can be written with authority, color, vivacity, and personal voice. Opinion pieces should be 1500 - 2500 words and should contain no more than 25 references. They do not contain primary research data, although they may present "sociological" data (funding trends, demographics, bibliographic data, scientific and social development, etc.). Opinion pieces do not contain an abstract, and keywords. In all other respects, the directions for full papers should be followed.
Commentary
Commentary articles comment on articles that have been published in JSIPB and other top journals or hot topics. They should contain no more than 1000 words of text, 1 display item (figure or table), and a maximum of 20 references. Commentary articles do not contain an abstract.
Case Study
A Case study should report on specific cases that are unique, exciting, and current to sports injury prevention, sports biomechanics, exercise and sport science, sports medicine, and other relevant fields of study. Case studies should make a distinct contribution to the scientific field and/or question existing paradigms. A case could be an individual or a community depending on the nature of the study. We expect most case studies to include an abstract, an introduction, a briefcase report, and a discussion.
Letter to the Editor
Letters to the Editor present preliminary reports of unusual urgency, significance, and interest, whose subjects may be republished in expanded form. They should contain no more than 1000 words of text, 2 display items (figure or table), and a maximum of 15 references. Letters to the Editor do not contain an abstract and keywords. In all other respects, the directions for full papers should be followed.
Referees
Please submit the names and institutional e-mail addresses of several potential referees. Note that the editor retains the sole right to decide whether or not the suggested reviewers are used.
Submission
Submission to this journal proceeds totally online. Use the following guidelines to prepare your article. Via the homepage of this journal (http://jsipb.ir/page/21/Submission-Instruction), you will be guided stepwise through the creation and uploading of the various files. All correspondence, including notification of the Editor's decision and requests for revision, takes place by e-mail and via the author's homepage, removing the need for a hard-copy paper trail. If you are unable to provide an electronic version, please contact the editorial office prior to submission (E-mail: infojsipb.ir).
Submission checklist
You can use this list to carry out a final check of your submission before you send it to the journal for review. Please check the relevant section in this Guide for Authors for more details.

Ensure that the following items are present:

One author has been designated as the corresponding author with contact details:
• E-mail address
• Full postal address (with phone number)
All necessary files have been uploaded:
Manuscript:
• Ethical requirement
• Include keywords
• All figures (include relevant captions 300 dpi resolution at least)
• All tables (including titles, description, footnotes)
• Ensure all figure and table citations in the text match the files provided
Highlights files (where applicable)
Supplemental files (where applicable)
Further considerations
• Manuscript has been 'spell checked' and 'grammar checked'
• All references mentioned in the Reference List are cited in the text, and vice versa
• Permission has been obtained for use of copyrighted material from other sources (including the Internet)
• A competing interests statement is provided, even if the authors have no competing interests to declare
• Journal policies detailed in this guide have been reviewed
• Referee suggestions and contact details provided, based on journal requirements
Ethical requirement
All materials must adhere to high ethical and animal welfare standards. Any use of animals must be based on ethological knowledge and respect for species-specific requirements for health and well-being. For investigations of human subjects, an appropriate institutional review board approved the project, and informed written consent was obtained from the study participants or guardians. 
For Systematic Reviews and Meta-Analyses
Systematic reviews and meta-analysis should address all the items recommended in the PRISMA statement. A completed PRISMA checklist and flow diagram should accompany the submission (in .docx file).
Declaration of Interest
All authors must disclose any financial and personal relationships with other people or organizations that could inappropriately influence (bias) their work. Examples of potential competing interests include employment, consultancies, stock ownership, honoraria, paid expert testimony, patent applications/registrations, and grants or other funding. Authors must disclose any interests in two places: 1. A summary declaration of interest statement in the title page file (if double-blind) or at the end of the manuscript file (if single-blind). If there are no interests to declare then please state this: 'The authors declare that they have no competing interests. This summary statement will be ultimately published if the article is accepted. 2. Detailed disclosures as part of a separate Declaration of Interest form, which forms part of the journal's official records. It is important for potential interests to be declared in both places and that the information matches.
Submission Declaration
Submission of an article implies that the work described has not been published previously (except in the form of an abstract, a published lecture, or academic thesis), that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, it will not be published elsewhere in the same form, in English or in any other languages, including electronically without the written consent of the copyright holder.
Changes to Authorship
Authors are expected to consider carefully the list and order of authors before submitting their manuscript and provide the definitive list of authors at the time of the original submission. Any addition, deletion, or rearrangement of author names in the authorship list should be made only before the manuscript has been accepted and only if approved by the journal Editor. To request such a change, the Editor must receive the following from the corresponding author: (a) the reason for the change in the author list,(b) written confirmation (e-mail, letter) from all authors that they agree with the addition, removal or rearrangement, and (c) written confirmation (email or letter) from all authors' affiliations. In the case of addition or removal of authors, this includes confirmation from the author being added or removed.
Only in exceptional circumstances will the Editor consider the addition, deletion, or rearrangement of authors after the manuscript has been accepted. While the Editor considers the request, publication of the manuscript will be suspended. If the manuscript has already been published in an online issue, any requests approved by the Editor will result in a corrigendum.
Language 
Please write your text in good English (American or British usage is accepted, but not a mixture of these). 

preparation 
Submission Sample
Manuscript format sample
Click here to download the main File Template
use of word processing software
It is important that the file be saved in the native format of the word processor used. The text should be in 1.5-space format. Keep the layout of the text as simple as possible. Most formatting codes will be removed and replaced on processing the article. In particular, do not use the word processor's options to justify text or to hyphenate words. However, do use boldface, italics, subscripts, superscripts, etc. When preparing tables, if you are using a table grid, use only 1 grid for each individual table and not a grid for each row. If no grid is used, use tabs, not spaces, to align columns. The electronic text should be prepared in a way very similar to that of conventional manuscripts. Note that source files of figures, tables, and text graphics will be required whether or not you embed your figures in the text. See also the section on Electronic artwork.
To avoid unnecessary errors you are strongly advised to use the 'spell-check' and 'grammar-check' functions of your word processor.

Article structure
Title page information
• Title. Concise and informative. Titles are often used in information-retrieval systems. Avoid abbreviations and formulas where possible.
• Author names and affiliations. Please clearly indicate the given name(s) and family name(s) of each author and check that all names are accurately spelled. Present the authors' affiliation addresses (where the actual work was done) below the names. Indicate all affiliations with a lower-case superscript letter immediately after the author's name and in front of the appropriate address. Provide the full postal address of each affiliation, including the country name and, if available, the e-mail address of each author.
• Corresponding author. Clearly indicate who will handle correspondence at all stages of refereeing and publication, also post-publication. This responsibility includes answering any future queries about Methodology and Materials. Ensure that the e-mail address is given and that contact details(postal address and phone numbers) are kept up to date by the corresponding author.
• Present/permanent address. If an author has moved since the work described in the article was done, or was visiting at the time, a 'Present address' (or 'Permanent address') may be indicated as a footnote to that author's name. The address at which the author actually did the work must be retained as the main, affiliation address. Symbols (like ??) are used for such footnotes.
Abstract
A concise and factual abstract is required. The abstract should state briefly the purpose of the research, the principal results, and major conclusions. An abstract is often presented separately from the article, so it must be able to stand alone. For this reason, References should be avoided, but if essential, then cite the author(s) and year(s). Also, non-standard or uncommon abbreviations should be avoided, but if essential they must be defined at their first mention in the abstract itself.
Keywords
Authors are invited to submit 3-5 keywords associated with their paper.
Introduction
State the objectives of the work and provide an adequate background, avoiding a detailed literature survey or a summary of the results.
Material and methods
Provide sufficient details to allow the work to be reproduced by an independent researcher. Methods that are already published should be summarized, and indicated by a reference. If quoting directly from a previously published method, use quotation marks and also cite the source. Any modifications to existing methods should also be described.
Results
Results should be clear and concise.
Discussion
This should explore the significance of the results of the work, not repeat them. Avoid extensive citations and discussion of published literature.
Conclusion
The main conclusions of the study may be presented in a short Conclusions section, which may stand alone or form a subsection of a Discussion section.
Acknowledgments
Collate acknowledgments in a separate section at the end of the article before the references and do not, therefore, include them on the title page, as a footnote to the title or otherwise. List here those individuals who provided help during the research (e.g., providing language help, writing assistance or proofreading the article, etc.)and funding. 
References
References to other publications must be in the Vancouver Style and carefully checked for completeness, accuracy, and consistency.