درخت حوزه‌های تخصصی

Purpose: The main purpose of this research was to study the challenges, opportunities and solutions of the championship sports for Iranian women. Method: The research method was mixed,and different methods were applied to serve the purpose of this research. The research sample was selected from the main population (N=172) following Morgan’s sample size determination (118). Open and closed questionnaires were used to measure the effect of each of the challenges and opportunities with a Likert's five-item scale. Results: The findings showed that 9 opportunities and 19 challenges exist regarding Iranian women’s championship sports. Conclusions: Though investigations of women’s sports in internal and external fields show progress in Iranian women’s sports, they do not show any desirable growth compared to male sports, which isdue to social restrictions and other factors.

Background : Volleyball is known as sport that requires high physical fitness, including muscle power, agility and reaction; hence, body composition and anthropometric features play important roles in this field. The purpose of this study was to investigate the relationship between anthropometric and body composition indices with lower limb explosive power in female volleyball players. Material and method : This correlational study was conducted in which 16 semi-professional female volleyball players with an average age of 20.4 ± 1.34 years and BMI of 22.09 ± 3.42 kg/m2 voluntarily participated. All volleyball players had a history of participation in the Tehran province volleyball league. First, data were collected and recorded by demographic questionnaire. Then, the body composition (fat percentage, muscle mass, visceral fat) was measured and recorded in the 3-hours fasting condition by body analysis device (OMRUN Bf511). Finally, Sargent Vertical Jump Test was used to evaluate explosive power of the lower limb muscles. Results :  Pearson correlation coefficient was used at the significant level p Conclusion: The results of this study show that resistance training along with volleyball specific power training can increase the muscle mass as well as it is at the same time.

Purpose: The purpose of this research is to develop a model of the impact of service quality, brand’s social identity and the attachment to the team on the loyalty of Iranian Premier League football team’s fans. Method: This is an applied study of descriptive-correlation type. The statistical population of this study consisted of the fans of the selected Iranian Premiere Football League. A probability clustering method was used for sampling. Azadi football stadium of Tehran, Imam Reza football stadium of Mashhad, Yadegar Imam Football stadium of Tabriz and Naghsh Jahan football stadium of Isfahan were selected and the questionnaires were distributed in the 12th week of the tournament (2018-2019 season) between fans in above named stadiums. 400 questionnaires were distributed equally in four stadiums and finally, 387 full questionnaires were received and this number was considered as a statistical sample of the research. A researcher-made service quality questionnaire, brand’s social identity questionnaire of Boyle and Magnusson (2007), fans’ attachment questionnaire of Yoon, Petrick, & Backman (2017) and fans’ loyalty questionnaire of Tachis and Tzetzis (2015) were used for gathering information. Structural equation model and LISREL software were used to review and test the hypotheses. Results: The result showed that brand’s social identity has a significant positive effect on the attachment and loyalty of fans (P˂ 0.05). The attachment of fans also has a significant positive effect on their loyalty (P˂ 0.05). Conclusions: It is concluded that for enhancing fan's loyalty, managers of football teams should notice to service quality as a key factor.

Purpose: The aim of this study was to compare the effect of eight weeks physical and mental rotation training on the balance and falling of elderly women. Method: The present study is a quasi-experimental study with a pre-test, post-test and two-way ANOVA, which is also t-test designed. Tools included: mental rotation questionnaire and functional reach test. The participants included: 36 patients (12 subjects in three groups of physical training, mental rotation and control group) have been randomly selected among the elderly women of an elderly Centre in Tabriz. The training program was administered in two groups of physical training and mental rotation for eight weeks, at three sessions in a week and a group of control with no intervention.  For data analysis, the SPSS software, version 21 was used. Results: One-way ANOVA showed, the mean balance among the elderly women was significantly different from the physical training group. The relationship between post-test mental rotation and pre-test physical training was significant at the 0.01 level. Also, the relationship between the post-test mental rotation group and the pre-test mental rotation group was significant at the level of 0.05 and the relationship between mental rotation and balance among elderly women is significant at the 0.01 level, at the end the relationship between mental rotations and falling in the elderly was significant at 0.05 level. Conclusions: The results of this research indicates that the physical training and mental rotation training had a positive effect on the balance of the elderly women and it also showed that the elderly women of the physical training group had more improvement on balance than mental rotation groups. So, this research indicates that, cognitive abilities and movements could be facilitating and effective in this way.