# A Bibliometric Analysis of High-Intensity Interval Training in Cardiac Rehabilitation

PMID: 36360625
Journal: International Journal of Environmental Research and Public Health
Published: 2022 Oct 24
Authors: Liu H, Liu F, Ji H, Dai Z, Han W

## Question

What are the publication patterns, countries, institutions, journals, authors, and research hotspots for HIIT in cardiac rehabilitation?

## Summary

This paper did not test a HIIT program. It mapped 201 Web of Science publications on HIIT in cardiac rehabilitation from 2004 to August 2022. The literature grew rapidly after 2017, with major topics including coronary artery disease, exercise capacity, heart failure, cardiorespiratory fitness, quality of life, and heart transplantation.

## Population

- No primary participants; 201 bibliographic records on HIIT in cardiac rehabilitation.
- Sample size: 201
- Health status: Cardiac rehabilitation literature

## Methodology

- Bibliometric analysis
- Literature from 1 January 2000 to 15 August 2022
- Web of Science database and CiteSpace analysis

## Protocol

- No primary intervention.
- Program length: Bibliometric search window 2000 to 15 August 2022.

## Outcomes

### Publication growth
Status: improved
HIIT cardiac rehabilitation publications grew rapidly after 2017.

201 retained publications; peak annual output in 2021

### Hotspots
Status: mixed
Major topics were CAD, exercise capacity, heart failure, fitness, and quality of life.

Keyword and clustering analysis

### Safety
Status: unclear
Safety claims were literature interpretation, not primary adverse-event data.

## Practical Insights

- Use this paper to identify cardiac rehabilitation HIIT topics and literature clusters.
- Do not use it to estimate effect sizes or adverse-event rates.
- Cardiac HIIT content needs strong clinical caveats.

## Limitations

- Bibliometric macro view lacks clinical protocol detail.
- Search ended 15 August 2022.
- Small or emerging subtopics may not be reflected well.
- No primary participants or adverse-event collection.

## Safety And Adherence

- No adverse events were measured because this was a bibliometric analysis.
- The discussion states cardiac rehabilitation HIIT should identify contraindications in advance and use strict supervision, monitoring, gradual intensity increases, and termination when needed.
- Any safety statements are indirect summaries of the literature, not direct trial evidence from this paper.

## Original Sources

- [PubMed](https://pubmed.ncbi.nlm.nih.gov/36360625/) (pubmed)
- [DOI](https://doi.org/10.3390/ijerph192113745) (doi)
- [PMC full text](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658065/) (full text)

## Agent Guidance

Preserve the paper-level scope of this note. Do not generalize beyond the population, protocol, measured outcomes, and limitations above.