درخت حوزه‌های تخصصی

The aim of this research was to determine the impact of a psychological skills training (PST) course on the level of sports injury anxiety and fear of failure. This research was of an applied and cross-sectional nature, and the statistical population consisted of elite football athletes, among whom 45 completed the existing scale. The measurement tools used were the Sports Injury Anxiety Scale (SIAS) and the Performance Failure Appraisal Inventory (PFAI) to assess fear of failure. The pre-test for sports injury anxiety and fear of failure was conducted in all three groups, and the experimental group followed the corresponding protocol for 12 sessions, after which the post-test was carried out. The data were analyzed using the dependent t-test and ANCOVA. The results showed that after the intervention, sports injury anxiety and fear of failure had decreased, and there were differences in the responses to the items on the sports injury anxiety and fear of failure test between the two experimental groups, the pre-exercise intervention and the pre-sleep intervention. In general, it can be concluded that practicing psychological skills can be a strategy for reducing psychological responses such as sports injury anxiety and fear of failure. Sports psychologists are advised to use this intervention to reduce sports injury anxiety and fear of failure, and consequently to improve performance.

We have reviewed the coaches' role in German talent identification and development football programs and followed the qualitative meta-synthesis method with Sadowski and Barroso's approach. We verified 56 documents and extracted 695 nonrepetitive open codes and 135 concepts. We showed that coaches' roles in a talent program consists of Competency, Leadership, and Organizational components. Competency components include selection, training, coaching, and performance. Leadership components include Technical and DFB & DFL. Finally, the Organizational components comprise the Double Pass, coordinators, and DFBnet. Properly organizing and equilibrium between these three parts can leverage and lead to successful coaches and the program. According to the critical role of alent programs and coaches in sports development, setting up national TID and TDE programs, especially in sports, are very important. Implementing a large-scale project with various criteria is complex; because it requires high cooperation, mutual understanding, and national determination. Many employees are involved in such systems with instrumental, scientific, experimental, and specialized aspects.

Several metabolic changes caused by regular exercise, can lead to adaptive mechanisms in athletes. These changes create a new dynamic balance that ensures better performance. On the other hand, because most studies on changes in the metabolic profile of the blood have been conducted in male athletes, this study investigated the effects of different exercise conditions on reactive oxygen species (ROS), adiponectin, and subjective mood in female athletes. A cohort of 30 females, 20 professional players (10 target shooters and 10 basketball players), and 10 sedentary females as control group were enrolled in the study. Capillary blood samples and the Brunel Mood Scale questionnaire (BRUMS) were collected at noon before the training session. ROS and adiponectin were determined by the ELISA method. To compare among groups, one-way analysis of variance and Tukey's post hoc test were used at the significance level of P<0.05. Physiological evaluations showed a significant high level of adiponectin in basketball players (p=0.005). The anger subscale in the basketball group had a significant increase compared to other groups (p=0.04). The tension subscale exhibited a higher level in the shooting group than in the control group. (p=0.017). Regarding the vigor subscale, there was no significant difference in experimental groups, and there was a significant difference in the non-athlete group (control) (p=0.001). Basketball, being a team sport, exhibits a greater degree of aggression in contrast to shooting, which is classified as an individual sport. More focus of coaches on adjusting in another sport with non-competitive and non-confrontational features to reduce anger is suggested.

Background: Rapid modern world changes have impacted efforts to educate children with abilities and skills suitable for societal goals. Aims: The aim of the study was to investigate the effects of active video games and selected movement games on children’s physical literacy and self-concept. Materials and Methods: Sixty 8-12-year-old children from Ahvaz City were selected and assigned into three experimental and one control groups. Physical literacy and self-concept were assessed in pretest. The active video game group played Xbox Kinect bowling, athletics, tennis, soccer, volleyball, basketball games. The selected movement game group played researcher-designed games. The mixed game group engaged in both activities over 12 video and 12 movement game sessions for 8 weeks, with 30-minute per session. Data were analyzed by MANOVA and student t-test. Results: The results showed that active video games and selected movement games influenced children’s physical literacy and self-concept. Further, significant differences were found between the experimental groups' physical literacy and self-concept outcomes. The selected movement game and mixed game groups performed better in these measures than other groups. Conclusion: Results suggest parents and teachers consider implementing the selected movement games and active video games to bolster physical literacy and self-concept in children.

Isomorphism is the process by which organizations become more similar to each other over time. The purpose of this study was to explore how previous research has examined this phenomenon in sports organizations. We used a semi-systematic approach to conduct the research. In conducting and reporting the review we followed the four stages that are outlined by Snyder (2019). A total of 126 articles underwent an abstract review process, from which 26 articles were extracted. Finally, 13 qualitative articles that related to the research objectives were reviewed. We conducted a content analysis of 13 articles on isomorphism in sport. The articles were published in a variety of academic journals between 1990 and 2023. 8 main themes are presented: Type of isomorphism, Mechanism of isomorphism, Consequences of Isomorphism in Sport Organizations, Function of Isomorphism, Strategies for response to pressure, institutional logics, Application of Isomorphism in Sports Organizations, Managing Isomorphism in Sport Organizations. Results showed isomorphism in sport organizations is driven by three primary mechanisms: coercive isomorphism, mimetic isomorphism, and normative isomorphism. In conclusion, isomorphism is a complex phenomenon that can have both positive and negative consequences for sport organizations. By understanding the mechanisms of isomorphism and carefully managing its effects, sport organizations can leverage its benefits while maintaining their strategic autonomy and fostering a culture of innovation and adaptation.