مجله علوم حرکتی و رفتاری
سال سوم شماره 1 (پیاپی 8، بهار 1399)

The aim of this study, was to investigate the effect of eight weeks of aerobic interval training and jujube extract on vascular endothelial growth factor in heart tissue of male Wistar rats with myocardial infarction.

The method of this study is experimental. Sixty male Wistar rats, aged 2-3 months, weighing 230 to 180 g were purchased for testing in this study. Of these, 34 individuals were selected as the sample and divided into 5 groups (interval training + infarct, interval training + infarct + jujube extract, healthy control, infarct control, and infarct + jujube extract group). They then induced to cardiac ischemia. The amount of exercise in this study was 8 weeks of interval training with 5 interval 4 min with intensity of 15 m / min. After 8 weeks, the tissues of these mice were perfused. Analysis of variance (ANOVA) and Tukey's post hoc tests were used to analyze the data.

The results of this study showed that there was a significant difference between the experimental and control groups. Also among the experimental groups, the results of this study showed that the combined exercise and supplementation group had the best results in increasing the vascular endothelial variable.

Overall, the results showed that the effect of the combined exercise and supplementation group was greater than the exercise and supplement alone conditions.

The prevalence of obesity and its associated complications are rapidly increasing worldwide and the aim of this study was to determine the effect of acute resistance exercise on adiponectin response in young and middle-aged men.

The research method was empirical and quasi-experimental research design. For this purpose, 11 young men (20-30 years) and 10 middle-aged men (40-50 years) participated in this study. All subjects performed an acute resistance exercise test session (performing 4 sets at 6 stations: chest press, leg press, leg extension, shoulder bar, arm curl, seated lat pull-down with intensity of 60% one repetition maximum). Blood samples were taken before and immediately after exercise to measure the concentration of adiponectin serum. Independent and dependent t-tests were used to compare the means of the groups. All statistical analyzes were performed using SPSS software (version 22) at the significant level P 0.05).

Therefore, the results of the study showed that one session of moderate to high resistance training had no significant effect on adiponectin serum levels in young and middle-aged men. Also, there was no significant difference in adiponectin response to acute activity between young and middle-aged men. Based on the results of this study, age does not appear to be a limiting factor in adiponectin regulation.

Parental stress is a family-related environmental variable that may impede different aspects of child development. The purpose of this study was to investigate the relationship between parenting stress with physical activity level and Motor proficiency in preschool children with high and low socioeconomic status. For this purpose, 119 children 6-year-old were randomly selected from district 4 of Tehran. Data were collected using Power Socioeconomic Status Questionnaire, Parenting Questionnaire (PSI-SF), Amron Pedometer, and Broninks-Osortsky-2 Functionality Test. Finally, data were analyzed using Pearson correlation test. Results showed a significant relationship between parental stress and physical activity level in low socioeconomic status (P = 0.023) and motor skill in high and low socioeconomic status (P <0.001), but There was no significant difference between parenting stress and level of physical activity in high socioeconomic status (P = 0/296).  According to the results, parenting stress is a variable that affects the level of physical activity and motor skill, but in relation to its interaction with socioeconomic status, other variables need to be considered simultaneously.

The purpose of this research was to investigate the effect of motivational factors of volunteers on satisfaction, attitudes, and support from a sport eventThis is an applied study and research method was descriptive-survey. Statistical population included all volunteers in thirteenth sport-cultural Olympiad of students universities (N=200). Using Morgan table and through random sampling, 128 volunteers were selected. A translated questionnaire Lee et al (2014) was used for data collection. The face validity of the questionnaire was confirmed by 10 experts. Also its reliability was calculated by using Cronbach's alpha and composite reliability. To analyze data and investigating model fit, structural equation modeling and PLS software were used.Results showed that intrinsic motivation and altruism had significant effect on student satisfaction but the effect of extrinsic motivation and patriotism to the university on satisfaction wasn’t significant. Also satisfaction has significant and direct effect on attitudes to voluntariness but don’t have a significant effect on the attitude to the place. As well as the results showed that attitude to volunteer had significant and direct effect on attitude to place but don’t have significant effect on support of place. And effect of attitude to place on support of place was significant. According to continuum, effect of Motivational factors - satisfaction - attitude to volunteers, support of place, it seems psychological factors with reference of internal perception have a crucial effect on participation of student. Therefore, it is recommended that in volunteering system and method of supervising volunteers, internal factors should take priority.

The purpose of this study was to investigate the role of quantum management skills on organizational performance and agility of Iranian Army physical education staff.

This research is an applied goal in terms of correlation strategy implemented by field method. The statistical population of this study includes all employees of Ajay physical education department in 197 which is 169 persons. To measure the research variables, standard questionnaires of Secondary Huge Quantity Management Skills (1393), organizational performance of Sarmad et al. (2011) and organizational agility of Zhang and Sharifi (2000) were used.

The results showed that there was a significant relationship between quantum management and organizational performance (r = 0.898). There was a significant relationship between quantum management and organizational agility (r = 0.710). Also, there was the highest correlation between the quantum thinking component and the flexibility component (r = 0.692).

EJA managers should pay particular attention to the quantum and applied aspects of these skills in order to lead more effectively. Because quantum management skills enable managers to make their own intentions and intentions.

The purpose of the present study was to investigate the effect of eight weeks of virtual reality training and spirulina supplementation on cholesterol, LDL and HDL levels in obese women.

The research method in this study is quasi-experimental with pre-test and post-test design. The sample consisted of 30 obese women who were eligible to participate in the study and were randomly divided into three groups of 10 each. Initially, the subjects participated in the pre-test of blood sampling and the relevant information was recorded as pre-test scores and after the data collection, training interventions were started.

Descriptive statistics were used to describe, classify and adjust the raw scores. Inferential statistics were used to confirm the normal distribution of the data by the Shapiro-Wilk test, to determine the homogeneity of variances from the Levin test, and also for the hypotheses by the t-test and. Multivariate analysis of variance (Mankova) was used. All analyzes were performed using SPSS 20 software at the significant level p <0.05.

The results showed that the group that used both virtual reality and complementary exercises were better than the supplementary and experimental groups. Also, the experimental group experienced significant improvement in the installation of the supplementary group in examining the said variables.

The purpose of this study was to investigate the impact of environmental perception on sustainable development in sport. The present study is a descriptive-survey and field study. In order to collect data, a researcher-made questionnaire with 40 questions was used. The face and content validity of the questionnaire was confirmed by a survey of professors related to the research subject and its reliability was reported using Cronbach's alpha of 0.83. The statistical population of the study consisted of managers and organizers of sport events in ten provinces of the country. Due to the size, number, and difficulty of access, the available sampling method was used to collect the samples and finally 254 questionnaires were returned. Data analysis was performed using SPSS-19 software. The results showed that there is a correlation coefficient of 0.34 between environmental perception level and actual consumer behavior in sport events, which is significant at P

In this study, the effect of increasing performance expectations through comparative feedback on the learning of targeting skills and the enjoyment of physical activity in 13-15-year-old adolescents in Karaj city was evaluated.

For this purpose, 60 male students were selected by purposeful sampling and randomly divided into three groups of 20, tested positive feedback, negative feedback, and real feedback from targeting skills in six blocks of six attempts. The exercise task was throwing 100 grams of a 3-meter distance; subjects were evaluated in four stages: pre-test, acquisition, retention and transfer. In addition, the amount of enjoyment of the licentious people from their activities was evaluated using the Pleasure Inventory of Physical activity. The data were analyzed using one-way ANOVA with repeated measures, covariance analysis and Bonferroni’s post hoc test.

The results showed that there was a significant difference between the test scores of the positive feedback group in the pretest stages with acquisition, retention and transmission, but these differences were not significant in the negative feedback group and control group. Also, the results of covariance analysis indicated that there was a significant difference between the positive feedback group, the negative feedback group and the control group at the acquisition, retention, and transfer tests. The results of the Pleasure Questionnaire showed a significant difference between the groups in the post-test.

Findings indicate that positive feedback in learning has a facilitating and synergistic effect. Therefore, educators and educators can use it to accelerate learners learning.

The purpose of this study was to investigate the effect of life skills training on social adjustment and reduction of bullying among students. According to the purpose of this study, the data were collected using a quasi-experimental design with pretest-posttest design with control group. The statistical population of this study includes all students in the secondary school of Tehran in the academic year of 2018-2019 . The statistical population of this study was 30 people selected by multistage cluster sampling from among the statistical population and randomly divided into two groups (14) And control (n = 14) were used. A social adjustment scale and bulling scale (BS) were used to collect information. For data analysis, descriptive and noninvasive statistics were used. In the descriptive section of frequency, central incidence and dispersion indices, and Inferential analysis of covariance analysis (ANCOVA) was used. The results showed that life skills training is effective on social adjustment in reducing student bullying. According to the findings of this study, it is suggested that a life skills training program should be used as part of in-service training programs for school counselors and other school principals in order to enhance the skills of bullying and aggressive students.

The purpose of this study was to determine the effect of Mindfulness training on anxiety and physical mental toughness in 19-25 year old female athletes.

the method used in this study was quasi-experimental and also according to the length of time the research was conducted cross-sectional and in terms of using the obtained results. The research design was pre-test-post-test with an experimental group (mindfulness practice) and a control group. For this purpose, 40 female athletes from khoramabad city were selected as volunteers and randomly divided into experimental (n = 25) and control (n = 25) groups. In the pre-test phase, participants completed the questionnaires of competitive state anxiety and mental toughness. The intervention consisted of 6 sessions of 90-minute mindfulness exercises for the experimental group. The control group performed its usual activities. After the intervention, the participants completed the questionnaire again.

The data were analyzed by covariance test. Results of this study showed that mindfulness training had a significant effect on competitive anxiety (p = 0.001) and mental strength (p = 0.001) in female athletes.

Overall, the results of this study showed that mindfulness intervention increased mental toughness and reduced competitive girls'' anxiety.

Purpose of this study was to compare the effects of Indigenous-Local play and selective motor interventions on the Self-esteem of obese girls in pre-school ages in Tehran. 30 obese girls were selected in a targeted way and divided into control groups, selective motion interventions and local native games. World Health Organization charts for obesity and Cooper-Smith questioner for Self-esteem were used. Experimental groups practiced two sessions in week and per session one hour for nine weeks. The results of covariance analysis and LSD showed. Intervention in experimental groups had a significant effect on the Self-esteem compared to the control group. But compared to each other, the difference was not significant. Local native games and selective motor interventions be effective in reducing obesity problem as self-esteem. This confirms the role of physical activity; it is about reducing the problems of obese people. Of course, to find the best practice, it's best to compare different interventions.

This study aimed to assess the mediating role of flattery in the relationship between self-esteem and stress and job success from the point of view of the Ministry of Sport and Youth Affairs experts. It is an applied research in terms of purpose classification of researches, it is descriptive-non-experimental in terms of data collection, and has been the case study among all types of descriptive research methods. The statistical population of the study consists of 550 staff and experts of the Ministry of Sport and Youth. Using Cochran formula, 221 individuals are selected as statistical sample. The sampling method was random sampling. The demographic data of the experts were first evaluated and after confirming the validity and reliability of the questionnaire, the relationship between self-esteem and stress with job success was analyzed by considering the mediating role of flattery in structural equation modeling. Data were analyzed using SPSS and LISREL statistical software. The results of the study showed that the mediating role of flattery in the relationship between self-esteem and job success was rejected and the relationship between stress and job success was confirmed.