School of Physical Education, Hangzhou Normal University, Hangzhou 311121, China.
Division of Library and Information Services, Hangzhou Normal University, Hangzhou 311121, China.
Nutrients. 2022 Oct 14;14(20):4288. doi: 10.3390/nu14204288.
Numerous studies have covered exercise-induced muscle damage (EIMD) topics, ranging from nutritional strategies to recovery methods, but few attempts have adequately explored and analyzed large volumes of scientific output. The purpose of this study was to assess the scientific output and research activity regarding EIMD and protein intake by conducting a bibliometric and visual analysis. Relevant publications from 1975-2022 were retrieved from the Web of Science Core Collection database. Quantitative and qualitative variables were collected, including the number of publications and citations, H-indexes, journals of citation reports, co-authorship, co-citation, and the co-occurrence of keywords. There were 351 total publications, with the number of annual publications steadily increasing. The United States has the highest total number of publications (26.21% of total publications, centrality 0.44). Institutional cooperation is mostly geographically limited, with few transnational cooperation links. EIMD and protein intake research is concentrated in high-quality journals in the disciplines of Sport Science, Physiology, Nutrition, and Biochemistry & Molecular Biology. The top ten journals in the number of publications are mostly high-quality printed journals, and the top ten journals in centrality have an average impact factor of 13.845. The findings of the co-citation clusters and major keyword co-occurrence reveal that the most discussed research topics are "exercise mode", "nutritional strategies", "beneficial outcomes", and "proposed mechanisms". Finally, we identified the following research frontiers and research directions: developing a comprehensive understanding of new exercise or training models, nutritional strategies, and recovery techniques to alleviate EIMD symptoms and accelerate recovery; applying the concept of hormesis in EIMD to induce muscle hypertrophy; and investigating the underlying mechanisms of muscle fiber and membrane damage.
大量研究涵盖了运动引起的肌肉损伤（EIMD）主题，从营养策略到恢复方法都有涉及，但很少有尝试充分探索和分析大量科学产出。本研究旨在通过文献计量学和可视化分析评估关于 EIMD 和蛋白质摄入的科学产出和研究活动。从 Web of Science Core Collection 数据库中检索了 1975-2022 年的相关出版物。收集了定量和定性变量，包括出版物和引文数量、H 指数、期刊引文报告、合著、共引和关键词共现。共有 351 篇出版物，年出版物数量稳步增加。美国拥有最多的出版物总数（占出版物总数的 26.21%，中心度为 0.44）。机构合作大多在地理上受到限制，跨国合作联系很少。EIMD 和蛋白质摄入研究集中在运动科学、生理学、营养和生物化学与分子生物学等学科的高质量期刊上。发文量排名前十的期刊大多是高质量的印刷期刊，中心度排名前十的期刊平均影响因子为 13.845。共引聚类和主要关键词共现的结果表明，讨论最多的研究主题是“运动模式”、“营养策略”、“有益结果”和“提出的机制”。最后，我们确定了以下研究前沿和研究方向：开发对新的运动或训练模式、营养策略和恢复技术的全面理解，以减轻 EIMD 症状并加速恢复；将应激反应的概念应用于 EIMD 以诱导肌肉肥大；以及研究肌肉纤维和膜损伤的潜在机制。
