Bibliometric and visualization analysis of exercise interventions for respiratory infectious diseases (2000-2025):...

Respiratory infectious diseases impose a heavy burden on global health. Exercise-related interventions have attracted increasing research attention, but the knowledge landscape and emerging trends in this field have not yet been comprehensively mapped. This study aims to address this gap through a bibliometric and visualization analysis of the literature published between 2000 and 2025.

A search was conducted in the Web of Science Core Collection and PubMed databases, incorporating relevant English-language literature published between January 1, 2000, and March 31, 2025. After deduplication and screening, 944 articles were ultimately included. Co-occurrence network, clustering, and emergence analyses were conducted using CiteSpace 6.4.R1 software. Descriptive statistical analyses of publication volume and country, institutional, and author distribution were performed using Microsoft Excel.

Publication output in this field has increased significantly since 2020, peaking in 2022, a trend highly consistent with the progression of the coronavirus disease 2019 (COVID-19) outbreak. Arena Ross, the University of London (United Kingdom), and the United States emerged as the most prolific author, institution, and country, respectively. Frequent keywords include "Physical activity," "Pulmonary rehabilitation," "Exercise," "COVID-19," "Coronavirus disease," "Rehabilitation," and "Quality of life." Keywords exhibiting high burst strength include "COVID-19 (30.04)," "Coronavirus disease (10.19)," and "respiratory tract infections (7.95)." Emerging research hotspots concentrate primarily on 3 domains: "respiratory function," "Telerehabilitation," and "dyspnea."

Research on physical activity interventions for respiratory infectious diseases has shown sustained growth over the past 25 years, undergoing significant structural shifts during the COVID-19 pandemic. This study provides a broad overview of the knowledge landscape and developmental trajectory in this field.