Background: 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. Methods: 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. Results: 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.” Conclusion: 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.
Qiu-Gang Zheng, Jin-Dong Chen, Na Wang et al.· Medicine· 0 citations
Since the end of the Cold War, Joseph S. Nye’s concept of soft power has become a central analytical framework for understanding national attraction and non-coercive influence in international relations. Despite the rapid expansion of both theoretical and empirical research, the field still lacks systematic bibliometric evidence concerning its knowledge structure, thematic evolution, and patterns of scholarly collaboration. To address this gap, this study constructs a comprehensive bibliometric map of global soft power research based on 2,772 English-language social science articles indexed in the Scopus database from 1991 to 2025. Using VOSviewer and RStudio (Biblioshiny), the analysis examines publication trends, citation structures, country collaboration networks, author co-citation relationships, keyword co-occurrence patterns, and thematic evolution pathways. The findings indicate that soft power research experienced steady growth after 2005, followed by a pronounced acceleration after 2015. While the United States, China, and the United Kingdom remain the principal research hubs, Australia emerges as an important cross-regional bridge, suggesting a shift toward a more multi-center structure of knowledge production. Keyword co-occurrence and thematic evolution further reveal a transition from early concept-oriented debates to a more diversified and policy-focused research agenda. In addition, soft power is increasingly conceptualized as an observable and comparable form of international influence, with growing attention to practical domains such as higher education cooperation, sports diplomacy, digital diplomacy, vaccine diplomacy, and the Belt and Road Initiative. Overall, this study systematically maps the intellectual structure and emerging frontiers of global soft power research, highlighting the rise of multipolar soft power and a shift toward policy-oriented and interdisciplinary inquiry, while providing a bibliometric foundation for developing measurable soft power assessment frameworks.
Na Wang, M. Ahmad· Multidisciplinary Reviews· 0 citations
