The purpose of this study is to investigate the relationship between quality, website, and customer loyalty of sports brands, mediator role: web browsing, and social media addiction. The present research is applied in terms of purpose and is descriptive-survey in terms of data collection method. The library-field method was used to collect relevant information in the form of a questionnaire. According to the purpose of the research and the subject of the research, the statistical population includes customers of selected sports brands who buy online through Internet sites in Tehran. In this study, Cochran's method was used to determine the sample size and 4 people were selected and a questionnaire was randomly distributed among them. To determine the validity of the questionnaires, validity, content, and structural validity methods were used. Also, to determine the reliability of the questionnaires, Cronbach's alpha coefficient and combined reliability, coefficient and coefficient showed that the data collection tool has the required high reliability. Descriptive statistics, inferential statistics and Smart PLS software were used to analyze the data. It also showed a positive and significant relationship between the quality of the website and loyalty and their components, and also browsing and addiction to social networks play a conclusive role in this relationship. It is suggested that sports shop sites benefit from greater customer loyalty by creating quality websites.

The purpose of this study was to study the causal relationship between the quality of sports services with satisfaction and behavioral tendencies in public sports consumers in Tehran. The research method of this research is descriptive-correlational that has been conducted in the field. The statistical population of this study was all consumers of public sports in Tehran in 1399, numbering six million, two hundred and thirty thousand people, who according to the Cochran table, 240 people were selected as a statistical sample. To collect the research data, questionnaires of personal characteristics, quality of sports services of China Liu (2008), satisfaction of athletes Chu (2003) and behavioral tendencies of Rio et al. (2010) were used. Findings showed that the quality of services affects the satisfaction of consumers of public sports. The results also showed that the satisfaction of consumers of public sports affects their behavioral tendencies. There was a positive and significant relationship between perceived value and behavioral tendencies from the perspective of athletes. According to the results of the research, it is suggested that coaches and public sports officials in Tehran increase the quality of services provided to satisfy its consumers and make them want to attend again.

Objective: The present study was conducted to compare the relationship between physical activity and economic and social status of families in Tehran. This research is of applied type and based on the data of descriptive-correlation type and is current in terms of time. The statistical population of this study consisted of students in districts 1 to 5 in Tehran. The sample of 300 people was considered random. In the present study, the physical activity of the family is a variable and the social and economic status of the family are the predictor variables. The measurement tool included a researcher-made questionnaire whose validity and reliability were confirmed to be 0.88. T-test was used to analyze the data. Findings showed that there is a significant difference between parents' social support for physical activity in the north and south of Tehran.