درخت حوزه‌های تخصصی

The purpose of this paper is to list and briefly discuss the top authors, organizations, universities, nations, publications, and journals in the topic of sports safety management. It also aims to provide the most linked patterns in terms of co-citation, co-authorship, keyword co-occurrence, temporal proximity, and substantial terms and concepts in the field of safety management based on content analysis. 214 pertinent international publications from journals around the world that were published between 1993 and 2023 were found in the Scopus citation database and comprised the statistical population for this study, which followed a systematic review process. In this study, software tools like Publish or Perish, Excel, Vosviewer, Rstudio, R and Maxqda 2020 were used to identify, quantify, and evaluate safety management elements in sports.The results showed that the United States has the most influence in this sector, with the University of Florida (USA) being the most significant university and organization. "Recreational Sports" is the most prominent journal in the field of safety and risk management. Konnaughton, D.P., and Spengler, Jo are the most significant authors in this discipline. Finally, a comprehensive and eight-dimensional model of safety management was created by merging the essential terms that were taken from the examination of the top 20 articles in this sector. In conclusion, it can be said that safety and risk management in sports can reduce sports-related dangers and boost safety standards, resulting in a significant advancement in athlete safety and a reduction in risks related to sports.

Background: Since the outbreak of COVID-19 virus and the rise in concerns, researchers have been investigating risk factors of this disease. One of the factors affecting the hospitalization of influenza patients is high BMI. Due to the relation between COVID-19 disease and influenza. Aim : the purpose of this study was to investigate the effect of BMI on the infection and severity of COVID-19 patients. Materials and Methods: BMI of 126 men was calculated and three groups of "appropriate weight", "overweight" and "obese" were identified. Then, the prevalence and severity of their disease were recorded. For data analysis, chi2 test was used in SPSS 26 software at a significance level of P = 0.05. Results: Prevalence of COVID-19 infection in the group with “appropriate weight”, ”overweight” and “fat” were 56%, 61% and 58%, respectively. Mild infection was reported in the three groups, 27%, 27% and 26%, respectively; Moderate infection was 22%, 26% and 26%, respectively; and severe infection was 7%, 8% and 5%, respectively. Therefore, there was no significant difference between their infection and the severity of infection in groups ( P ˃.05). Conclusion: Obesity has negative effect on the body's immune response and lung function. The hospitalization rate for influenza is higher in this group. But in infection of COVID-19 and severity of this disease, no significant difference was observed between men with different BMI. However, due to the relation between obesity, cardiovascular disease, diabetes, and the vulnerability of these patients to the COVID-19 virus, serious attention is necessary to prevent these individuals from COVID-19.