درخت حوزه‌های تخصصی

The aim of the present study was to identify and explain the factors influencing business intelligence in online sports enterprises. The research employed a qualitative methodology based on grounded theory. The statistical population consisted of experts, specialists, university professors, and entrepreneurs active in the domain of sports business. A snowball sampling method was employed to select participants for in-depth interviews. The primary data collection instrument was semi-structured interviews conducted with 17 participants. The validity of the interview protocol was verified by both the interviewees and a panel of academic experts. To assess reliability, the intra-subject agreement method was used, yielding a reliability coefficient of 0.87. Data analysis was conducted using grounded theory methodology. Findings revealed that the key factors influencing business intelligence in online sports enterprises include: innovation development, resource management, internet-based business expansion, supportive legal and policy frameworks, and cultural infrastructure. These core categories were further broken down into 11 concepts and 52 open codes. Based on these findings, it is recommended that strategic policymaking and effective interventions be implemented to support the development of online sports businesses. Such initiatives may also stimulate short-term employment growth.

Background: Dynamic knee valgus (DKV) is due to the weakness of the thigh abductor muscles and the vastus medialis muscle, which increases the internal rotation of the thigh and increases the possibility of anterior cruciate ligament (ACL) injury. The amount of DKV in women is higher than men, which is one of the reasons for the possibility of more injury in women. Aim: The aim of the present study was the effect of acute soccer functional fatigue on knee and trunk kinematic factors in female soccer players with and without DKV during single leg landing. Materials and Methods: The present study is quasi-experimental research conducted on 28 female soccer players who were selected using purposeful and convenience sampling. They were classified into two groups with and without DKV. The subjects performed a single leg soccer landing, and the kinematic changes of the participants' trunk and knees were recorded through high-speed video cameras (SONY camera) in two sagittal and frontal planes and analyzed by Kinovea software. The data were analyzed in SPSS-26 software using a mixed ANOVA statistical test.Results The results revealed a significant interaction effect between fatigue conditions and groups on knee and trunk joint angles in frontal plane in the initial contact with the ground in single leg landing. The results showed that fatigue significantly reduced knee flexion and increased knee valgus and trunk lateral flexion increased significantly after fatigue. Conclusion: The results indicated the acute effect of fatigue on knee and trunk kinematics of female soccer players with DKV. Therefore, by increasing the amount of knee and trunk flexion and correcting the landing technique, the possibility of ACL injury in fatigue can be reduced.

The purpose of this research was to identify strategic positioning of sports diplomacy capacities for sustainable development. The research population included professional athletes and coaches; who had experience working at international sports levels. The sample was selected via availability methods (146 individuals). Data collection was conducted through a researcher-made questionnaire. Data analysis was performed using SWOT matrix. Five professors confirmed the validity of the questionnaire, and its reliability was determined by Cronbach's alpha value of 0.89, indicating the high reliability. The results revealed that the strategic position of sports diplomacy capacities for sustainable development is in the WT quadrant, indicating that the most appropriate strategies that can be applied are defensive ones. Accordingly, respective planners and decision-makers in sports, especially policy-makers, should consider appropriate strategies to improve Iranian sports diplomacy capacities, leading to a more sustainable development.

According to the new attitude in the management of gymnastics clubs, in the present research, an attempt has been made to design the implementation model of the blue ocean strategy in gymnastics clubs. This research was a qualitative study. The participants in the research were university experts who, according to the nature of the research, were conducted with 10 people in a snowball manner with semi-structured interviews until theoretical saturation was reached. In order to ensure the reliability and validity of the research, intra-subject agreement and expert opinions were used and their opinions were revised. To form the theory, Strauss and Corbin's method was used in the form of three stages of open, central and selective coding, and by using blue ocean strategy implementation tools such as the strategy canvas, the four action framework, etc., in order to present the ocean strategy implementation model. 179 The final concept was designed in the form of the foundation's data theory conceptual model consisting of the central category, causal conditions, contextual factors, intervening conditions, strategies and consequences. Also, a 5-step model for implementing the blue ocean strategy in gymnastics clubs was presented, and finally, this model was combined with the conceptual model of the foundation's data theory and the final model was obtained. In order to identify the right path to move towards the blue ocean, strategies of creation, increase, decrease and elimination were used, and finally, the implementation of the strategy resulted in the results of the research.

Background: Education is a social process in which human beings reach social competence and individual growth. An institution that does this process is called the school. Among schools, primary schools are the most important environment for socialization and education of children, so physical education programs at this stage can provide conditions for the development of motor literacy and thus a healthy and active lifestyle. While refreshing the school yard and stimulating and encouraging the students' visual sense to engage in sports, the dynamic yard design provides a suitable ground for children to play spontaneously.Aim: This study aimed to evaluate the performance of the dynamic yard design on the physical, mental and academic performance of elementary school students.Materials and Methods: This research has been done by the library method to review related articles, take notes and infer from them.Results: The results of the research indicate that between the implementation of the dynamic yard plan and the variables of physical activity, vitality, reduction of behavioral incompatibilities, academic performance, and physical self-concept (athletic fitness, fat burning, physical appearance, flexibility, health, and self-esteem), there is a positive and significant relationship.Conclusion: Enriching the schoolyard by drawing play shapes and purposeful plans and encouraging students to do physical activities in their spare time can positively affect behavioral patterns, enthusiasm, learning, institutionalizing exercise at an early age, and developing basic skills and have public sports.