Get your Heart Rhythm O2 paper right the first time: a ready-made structure with the right abstract and citations, so editors see your science, not formatting slips.
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Authored by Sumalatha Gangadhar | Published on 13 August, 2026
Submitting to Heart Rhythm O2 goes smoothly when your draft already matches the journal's own rules. Editors screen new manuscripts against the Heart Rhythm O2 guide for authors before peer review, so formatting, structure, and required statements should be right on the first draft rather than repaired during upload. This template sets that structure up for you.
It is a manuscript shell aligned to Heart Rhythm O2. It covers front matter, the abstract the journal expects, a body organized to the journal's article types, and a reference list in the journal's required style. Confirm current scope and article types on the Heart Rhythm O2 journal page before you draft.
Prepare the title, authors, affiliations, and ORCID iDs. Write the abstract to the journal's rule and word limit, organize the body to the article type, and apply the required reference style from the first citation. Complete every declaration (ethics, competing interests, funding, data availability) the Heart Rhythm O2 guide for authors lists, and cite figures and tables in order.
The common failure modes are formatting or reference style that does not match the guide for authors, missing required statements, and an incomplete portal checklist. Clear all three against the Heart Rhythm O2 guide for authors before you submit.
The shell mirrors what editorial staff check first: article-type fit, the abstract rules, required declarations, and the journal's reference style. For more detail see the author resources. When your draft is ready, upload it through Editorial Manager.
| Element | Heart Rhythm O requirement |
|---|---|
| Abstract | Structured abstract required for Original Clinical, Original Experimental, and Design Papers: fewer than 250 words, divided into 5 subsections: Background, Objective, Methods, Results, and Conclusion. Review articles (Topics in Review) and Allied Health Professionals articles: unstructured abstract, 200 words. Research Letters, Brief Reports, Point-of-View, and Letters to the Editor: no abstract. Fellows Corner: no formal abstract mentioned (1100 words max for entire article). Allied Health Professionals research/practice-improvement: structured abstract, 200 words or fewer, with subsections Background, Objectives, Methods, Results, and Conclusion |
| Main text | Original Clinical/Original Experimental: 5000 words, 8 figures/tables total (additional at Editors' discretion). Topics in Review: ≤8000 words, 8 figures/tables combined. Design Papers: ≤5000 words, 8 figures/tables combined. Allied Health Professionals research/practice-improvement: 2500-3000 words, 15 references max, up to 5 figures and 3 tables encouraged (not strictly limited). Allied Health review articles: flexible word count. Research Letters: ≤800 words including references (5 refs max) and legends, 1 figure or table. Brief Reports: <1500 total words including references and tables, 4 figures/tables combined. Fellows Corner: 1100 words max including references, 1 small figure. Perspectives in Contrast: 2000 words per author (invited only). Point-of-View: 1000 words including references (10 refs max), up to 1 figure or table (invited only). Letters to the Editor: 400 words (excludes title page), 10 references max, no original data or figures |
| Declarations | Ethics approval/consent as applicable; competing interests; funding; data availability |
| Figures/tables | Publication-ready; cited in order |
| Supplemental | Upload separately when used |
| Keywords | 5-10 keywords required. Use American spelling, avoid general and plural terms and multiple concepts. Only abbreviations firmly established in the field may be eligible |
| References | Numbered consecutively in order of appearance using superscript Arabic numerals. List first 6 authors; if more than 6 authors, list first 3 followed by et al. Format follows standard medical journal style (similar to Vancouver/NLM style). Examples provided include journal articles (with DOI when available), books, and book chapters. References should be double spaced in same font size as manuscript |
| Peer review | Single-blind review process (reviewers know author identities, but authors do not know reviewer identities) |
| Submission | www.editorialmanager.com/hroo/default.aspx |
Read the Heart Rhythm O2 guide for authors once before drafting and once before upload. Draft the abstract after results are stable. Set the reference style before adding citations. Keep a cover letter that states your contribution and fit to Heart Rhythm O2 in under a page.
Skim two or three recent Heart Rhythm O papers to calibrate depth and figure style. Make the novelty clear in the first two pages. Deposit data and code when the policy on the Heart Rhythm O2 journal page requires it. Disclose any preprint or conference version with identifiers in the cover letter.
Do one focused pass against the Heart Rhythm O2 guide for authors: scope, length, reference style, required declarations, and figure quality. Then submit through Editorial Manager.