درخت حوزه‌های تخصصی

The aim of this study was to investigate the relationship between perfectionism and competitive anxiety of group and individual athletes.For this purpose,400 group and individual athletes who according to the coaches were or are able to participate in competitions were selected by stratified random sampling and the demographic characteristics questionnaire,perfectionism scale in the athlete Dan et al correlation results showed that in group athletes there was a positive and significant correlation between excessive worry about mistakes with competitive anxiety (r = 0.19),a positive and significant correlation between perceived coach pressure and competitive anxiety (= 0.24). r)and there is a positive and significant correlation between perfectionism and competitive anxiety (r = 0.26).But there was nosignificant correlation between personal standards and perceived parental pressure with competitive anxiety. Also,the correlation results showed that in individual athletes, there was a positive correlation between personal standards and competitive anxiety (r = 0.22),between excessive concern about Mistakes with competitive anxiety positive and significant correlation (r = 0.17),positive and significant correlation between perceived coach pressure with competitive anxiety (r=0.205) and positive and significant correlation between perfectionism with competitive anxiety (21 /0 = r) exists. But there was no significant correlation between perceived parental pressure and competitive anxiety.

Background: Along with the outbreak of coronavirus and quarantine practices in many countries, physical activities have certainly been severely restricted. The purpose of this review was to investigate the role of technology in maintaining and improving physical health. Method: For this systematic review study, the research method in this study included searching on PubMed and Google Scholar databases. Articles written in English and Persian in peer reviewed journals that examining the effect of electronic games and virtual reality on physical fitness were selected for analysis. Then, the eligible studies classifieds based on the study population ages. Results: Of 12563 studies found, 14 studies were eligible to enter the study. Research has shown that the use of technology significantly affect gait, balance, strength, flexibility, and mental functioning of the elderly, as well as balance, strength, endurance, and cognitive abilities in adults and children's physical endurance. Conclusions: According to studies under review, the use of technology has a significant effect on improving and maintaining the physical and mental fitness of people in different ages. So, we can suggest using exergame and virtual reality exercises as a possible intervention to promote and maintain physical and mental fitness in quarantine.

Purpose: Nowadays, the use of sports and famous athletes in advertising has become one of the most common advertising practices. Therefore, the purpose of this research was to investigate the ability of predicting the indices of attractiveness, expertise, and trustworthiness of the renowned sport endorser on the consumers' willingness to buy sporting and non-sporting goods. Method: This study was a quasi-experimental study on a sample of 150 students of sport science at Ferdowsi University of Iran. The statistical sample was divided into two homogeneous groups; for one month, one group watched the advertisements of an artificial sport product and the other group watched the advertisements of an artificial non-sport product endorsed by the famous sport personality on the telegram. Finally, the results were analyzed by completing standard questionnaires of purchase willingness (Zichkowski, 1985) and advertising celebrities (Ohanian, 1990) and simultaneous regression statistical methods. Results: The results showed that all three indices of attractiveness, expertise, and trustworthiness of the renowned sports endorser have high predictive power for the tendency to purchase sporting and non-sporting goods. Also in the sporting goods group, the expertise, and in the non-sporting goods group, the attractiveness had the highest predictive power of tendency to buy. On the other hand, there is a significant difference between the perception of the popular sport endorsing indices in advertising sporting and non-sporting goods. Conclusions: Through a promotional period for two endorsed sporting and non-sporting products, this study provides useful findings for product and service institutions to select and employ renowned athletes to endorse their products and influence consumers' purchase intention. In the text, the detailed descriptions of the expected results and discussions have been reported.