درخت حوزه‌های تخصصی

The current study aimed to investigate that whether young people with mild intellectual impairments (II) having various levels of IQ have different physical fitness and body composition. Moreover, this study aims to answer this question that is there any association among IQ level, Body Mass Index, and physical fitness factors? A number of 1200 students from all Tehran’s special high schools were screened, and finally, 355 of them with mean age 24.6 ± 3.0 years, height 173.5 ± 6.8 cm, weight 78.6 ± 8.5 kg, and body mass index (BMI) 23.3 ± 2.8 kg/m2 were chosen to be included in the study based on including criteria. All participants had a mild II with the IQ range of 50 to 75 based on the Wechsler Intelligence Test. Participants' physical fitness was assessed by Eurofit special battery test. Body composition evaluation measured by Body Composition Scale. The results showed that there were significant differences in most physical fitness factors between males and females, except in dynamic balance and flexibility (P ≤ 0.05). There was a significant association between IQ levels with all physical fitness factors (P ≤ 0.05) except for flexibility. Different IQ levels were associated with physical fitness factors, so that II students with low IQ had lower physical fitness than those who had higher IQ. Practitioners should consider these differences when working with II people of different gender and different level of IQ.

The purpose of this study was to develop a scale for measuring the service quality in sport scientific journals. A mixed approach was conducted to fulfill the research objectives. In qualitative phase 15 sport paper writer were interviewed and in quantitative phase, 357 sport researchers were studied through systematic random sampling. The face and content validity of the scale was confirmed by 15 experts and the final questionnaire of the scientific journals service quality was provided to 29 subjects. 26 items were ranked in five factors (accountability speed, executive structure, trustworthiness, employees and updating) based on exploratory factor analysis with orthogonal rotation. Cronbach's alpha, KMO, Bartlett Test and confirmatory factor analysis were used by SPSS and LISREL for data analysis. It is worth noting that the results of confirmatory factor analysis and Cronbach's alpha coefficient (0.91) supported the five-factor structure of JourQual scale and confirmed its validity and reliability.

The purpose of this study was to develop a strategic plan for Pahlevani and Zourkanei federation in Iran. The statistical population of this study included members of the federation's board of directors, chairmen of the federation committees, heads of provincial councils as well as sports and management elites. 50 experts participated in this study through total sampling approach. According to the results of the research, a total of 18 strengths, 30 weaknesses, 12 opportunities, and 17 threats for Pahlevani and Zourkanei federation were identified and based on the internal and external factors, the strategic position of the Pahlevani and Zourkanei Federation in the WT region was determined. A total of 19 strategies, including five SO strategies, five ST strategies, six WO strategies, and three WT strategies for the Pahlevani and Zourkanei federation, were developed. Therefore, according to the results of SWOT analysis matrix, it is necessary to use more than a defensive or stabilization strategy to manage the development of Pahlevani and Zourkanei federation.

The aim of this study was to develop a model for examining the mediating role of job characteristics in the relationship between structural empowerment and professional commitment of referees in female's Futsal Premier League. To collect the required data, we distributed the research questionnaires among 75 Futsal Premier League referees invited to the pre-season qualifying class in 2020, and finally we received 63 valid questionnaires. We conducted structural equation modeling, confirmatory factor analysis and path analysis for data analysis by using PLS Smart software. The findings demonstrated that structural empowerment can predict professional commitment, but the relationship between the two variables was not significant. The relationship of structural empowerment with job characteristics and professional commitment was not significant. The mediating role of job characteristics in the relationship between the two variables was not significant. The components of information sharing in structural empowerment, attachment to professional commitment and diversity of skills in job characteristics had the highest averages. Given that the lack of significance of the relationship among structural empowerment, professional commitment and job characteristics, is questionable and it should be assessed in great details.