درخت حوزه‌های تخصصی

Today, competition to improve the quality of services is recognized as a critical strategic issue for sports venues. The purpose of this study is to determine the impact of service quality on improving loyal behaviors. (A case study of customers of wrestling sports complexes in Kermanshah province). The research method was descriptive-correlational and was conducted in the field. The study's statistical population was the customers of wrestling halls in Kermanshah province. In this study, 450 people were considered as the statistical sample of the study by random cluster sampling. Bonajsui's (2012) Research Work Questionnaire was used to measure research variables. Univariate and multivariate regression and the Friedman test were used to analyze the data. The regression test results showed that the service quality variable has a predictive power of about 18% of the variance of communication quality. Furthermore, the results showed that the variables of personnel responsiveness, reliability, and trust in personnel could be significant predictors of the communication quality component. Also, the results showed that the variable of communication quality could be a significant predictor for the components of loyal behavior, word of mouth, purchasing desire, and dissatisfaction. The study's results showed that the quality of services affects the quality of communication. According to the results, the responsiveness of the complex staff, reliability, and trust in the personnel have a positive effect on the quality. At the same time, no relationship was found between the tangibles and empathy components with the relationship's quality. According to the results, improving the quality of services in sports complexes and the quality of customer relations are the main factors in the occurrence of loyal customer behaviors and their reappearance in the future.

Background: Telomerase activity plays a key role in preserving telomere length which is important in cellular aging. There is evidence showing the link between sirt6, irisin, and telomerase activity.   Aim : The aim of this study was to compare the effect of 8 weeks of high-intensity interval training (HIIT) and aerobic continuous training (ACT) on telomerase activity, sirt6, and irisin levels of healthy older adults. Materials and Methods: Thirty healthy males (age: 60-70 years, weight: 68-72 kg) participated voluntarily to follow the 8-week program including 3 sessions per week. Rest ratio in HIIT training was 1:2 and the intensity corresponded to 90% of HRR. ACT intensity was progressive starting with 50% of HRR and finishing with 70% of HRR. Blood samples were taken in a 12-hour fasting situation, before and after the program. Results: Results showed a significant effect of training on serum telomerase and sirt6 in training groups, not the control group. Also, in comparison to ACT and the control group, serum irisin was significantly higher in the HIIT group. Conclusion: We concluded HIIT training is safe and efficient for older adults in terms of telomerase activity, sirt6, and irisin level and can be followed as a time-efficient training protocol.

Branding is the main process of profitability and it can be defined as critical basis for sport industry. Therefore, the purpose of this study was to analyze the factors affecting the brand associations of the Iranian football league organization. The research population of the study included the faculty members of universities, members of the board of directors of the football federation, the board and staff of the league organization, and the managers and experts of the football federation. The research sample was selected through convenience sampling. A researcher-developed questionnaire was distributed for collecting the research data. The validity of the questionnaire was confirmed by ten professors of sports management and the reliability was confirmed using Cronbach's alpha test. To analyze the research data, Partial Least Squares test (PLS) was applied. Findings showed that the research variables included tradition, competitive balance, stadium atmosphere, management, competition, star player, education, competition, game show, community pride, socialization, player development, getting rid of everyday life, nostalgia, interest in a special team, excitement, acceptance in the peer group, logo, and product delivery had a positive and significant effect on the brand associations of Iranian football league organization. Therefore, it is suggested that managers and officials of sports federations use the results of this research to enhance the brand positioning of the football leagues.

Background: Community-based rehabilitation is a multi-dimensional approach to improve the function and quality of life to mentally ill people. Aim: This study examined the effect of rehabilitation protocol that were the spine strengthening exercises on adult mentally disabled men with upper body anomalies. Materials and Methods: This study was performed on 28 educable mentally disabled with the age range of 30-45. These subjects had positional hyperkyphosis angle, more than 45° and FHP more than 46°. They were randomly divided into two groups of experimental (n=16) and control (n=12). Experimental group followed the three-step training protocol for two months. A spinal mouse and a digital camera were used to measure the deviation of thoracic area’s hyperkyphosis and the FHP angle respectively. The dependent and independent t-tests were applied for within and between groups’ comparisons respectively. The significance level was considered at 0.05, all analysis of study was done by SPSS<sub>23 . Results: The mean of hyperkyphosis and FHP angles in experimental group, significantly decreased ( P = 0.008, 0.003), respectively. But there was no significant change in control group ( P = 0.101, 0.122). The independent t-test results for both variables indicated a significant difference between control and experimental subjects after the protocol ( P = 0.001). Conclusion: The combined corrective exercises caused a reduction in head, neck and trunk disorders of study subjects.

Background: Autism Spectrum Quotient (AQ) functions as an evaluative instrument designed to assess traits associated with autism. Variances exist within the brain of individuals on the autism spectrum. Moreover, certain exercises have the potential to impact specific regions of the brain. Aim: This study aims to investigate how the program training of this study impact Autism—Spectrum Quotient. Materials and Methods: Forty-two children aged 7-10 years with ASD were recruited to participate in this study. These children were randomly divided into two groups: the control group (N=10, 7.80±1.35 years) and the experimental group (N=32, age: 8.16±1.16 years). The experimental group underwent an 8-week training program. The Autism Spectrum Quotient (ASQ) questionnaire was used to assess the participants' scores in the pretest and posttest. This questionnaire consists of five subscales: social skills, attention switching, attention to details, communication, and imagination, as well as a total score. Results: Based on the results, the program training had an impact on attention to detail (P=0.017) and social skills (P=0.057). However, there was no significant difference between the pretest and posttest scores for attention switching (P=0.096), communication (P=0.07), and imagination (P=0.161). Conclusion: Based on the results, we can conclude that the program had a small but significant effect in terms of quantity. Due to the specific and unique structure of the brain, it takes time to achieve a substantial impact.

Background : Low back pain (LBP) can cause changes in muscle activity in affected individuals, making it difficult for them to contract their muscles effectively and engage in physical activities. Manual chiropractic techniques have been proposed as a potential solution to improve muscle orientation and function in individuals with LBP. Aim: The purpose of this study was to investigate the effect of manual techniques on maximum muscle activity electromyography, functional disability, and pain in women with non-specific chronic low back pain. Materials and Methods: Twenty women between the ages of 30 and 50, who had been experiencing NSCLBP for over three months with no history of spinal surgery or postural abnormalities, and were able to perform daily activities after providing consent, were recruited from a sports medicine clinic to participate in the study. In the pre-test, the Oswestry Disability Index (ODI) was used to assess functional disability, and the Visual Analogue Scale (VAS) was used to assess pain levels. Additionally, the maximum muscle activity of the multifidus and lumbar quadratus lumborum (QL) was measured using EMG. Chiropractic manipulation techniques were then implemented in the experimental group, with three sessions per week for six weeks, within the clinic. The same tests were repeated in the post-test. The ANOVA test was used to compare the chiropractic and control groups, with a significance level of α ≤ 0.05. Results : The study results indicate that chiropractic manual techniques were effective in reducing lumbar EMG activity ( P = 0.0001), reducing pain index ( P = 0.002), and improving functional disability ( P = 0.001) significantly. Conclusion : The study findings suggest that six weeks of chiropractic manipulation techniques can induce a feeling of relaxation, reduce pain, and passively strengthen the lumbar muscles. These improvements in muscle condition and functional disability may lead to a reduction in pain experienced by individuals with NSCLBP.