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The purpose of this study was to determine Psychometric aspects of the Persian version of Infant Movement Motivation Questionnaire (IMMQ) for infants of 3 to 11 months. In this regard, 528 parents and their infants (239 girls and 289 boys) in Tehran were selected as samples through the method of random cluster sampling. For this purpose, first by using a translation - re translation method, IMMQ was translated into Persian by 3 motor behavior experts and 2 English teaching specialists. Confirmatory and Exploratory factor analysis was used for the validation of questionnaire structure; Cronbach alpha coefficient was computed for internal consistency of questionnaire. Also, intra-class correlation coefficient under test-retest method was used to evaluate the temporal reliability of items. The results of Confirmatory and Exploratory factor analysis showed that IMMQ is multifactorial; so that, in total, four factors consisting activity, exploration, motivation and adaptability can explain % 53/32 of the total variance. Moreover, the fit indexes of the extracted model (PGFI = 0.71, NFI = 0.92, RMSEA = 0.078) were favorable and acceptable. Also, Cronbach alpha coefficient (α = 0/93) and intra-class correlation coefficient (r = 0.88) of the Persian version of IMMQ with 27 questions the like of original version, had acceptable internal consistency and temporal reliability. So the results showed that the Persian version of IMMQ can be used for clinical or research purposes as well as an educational tool for parents.

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Taking individuals' cognitive abilities into consideration can play an important role in the initial stages of learning motor skills. So, the purpose of the present study was to investigate the effect of cognitive functions on feedback request strategy and learning of a perceptual motor task. A number of 60 university male students with a mean age of 22/4 years (SD = 1/99) were selected through convenience sampling and were assigned to 6 groups according to their intelligence quotient, memory quotient and attention scores. All participants performed 100 badminton long services during the practice phase, and 20 services, during the retention and transfer phases. Wechsler Revised Intelligence Test, Wechsler memory scale, Toulouse and Pieron Test, and Scott and Fax Badminton Long Service were used to collect the data on intelligence quotient, memory quotient, attention, and badminton long service performance, respectively. Analysis of variance (ANOVA) with repeated measures and Independent t-test (α=0/05) were used to analyze the collected data. The analyses demonstrated that intelligence quotient, memory quotient, and attention had a significant effect on decreasing feedback request frequency during the acquisition phase, and increasing badminton long service scores during the acquisition, retention and transfer phases. Therefore, it can be concluded that bearing individuals' cognitive abilities in mind during motor skills training can be beneficial.

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The purpose of the present investigation was to develop and initial validation of a measure for assessing the athletes perceptions of coaches’ behaviors that promote fairplay behaviors. A three-step procedure was undertaken to develop the questionnaire. In the initial step, the literature review provided theoretical and empirical perspectives on how youth sport coaches can influence athletes’ fairplay behaviors. In step 2, a pool of 191 items worded and content validity was assessed. In the final step, 252 teenage male athletes (age range 14-19; mean age =15.88±1.34 years) who were participating in a variety of team sports (i.e., volleyball, basketball, soccer, futsal) completed a revised 164-item questionnaire. Principal components analyses further reduced the number of items to 30 and suggested a four-factor structure (i.e., modeling, instruction, pressure, and dialogue dimensions). The results revealed that the final 30-item version of the Coaching Fairplay Behaviors Inventory possesses a good psychometric basis with adequate internal consistency and which explain 57.80% of the total variance. Collectively, this study provides a new valid and reliable instrument for assessing the specific mechanisms by which coaches promote fairplay behaviors among teenagers, although more investigations are needed to validate this tool.

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Motor learning or the acquisition of coordination is a process of searching for stable functional coordination patterns, into which a system can settle during a task or activity. Human as complex creatures can choose the best pattern based on conditions within different coordination patterns and also achieve goals of tasks. So the purpose of this study is to determination the effect of a Nonlinear Pedagogy approach for the effectiveness of the movement and acquisition of skills. Accordingly, in this study 14 participants (with the average 19.64 and SD 0.74) are taught the short backhand serve of badminton with using linear and nonlinear pedagogy approaches. Linear approach Based on traditional Viewpoint using the descriptive methods and repetive instructions. On the other hand, nonlinear Pedagogy Approach Based on the ecological dynamics theory using manipulation of task constraints especially task constraints including equipment and rules Planned and conducted. Performance accuracy were selected to analyze further selections and used analysis of covariance to measure the effect of the independent variable measured. The test significance level was considered P <./ 05. Despite the progress of both groups to the pre-test, no difference was observed between the two groups in accuracy scores (F=0.092 and p=0.767) and both were equal to achieve results of the task as an indicator of skill acquisition. Our findings indicate that nonlinear pedagogy approach, resulted from theory of ecological dynamics, consider the complexity of Acquisition the skill and inherent tendency of individuals with providing movement affordances. Also, this approach can be effective in the fulfilment of goal tasks.

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The purpose of this study was to determine the relationship between movement motivation and motor development in infants with and without the experience of kindergarten. The population of this study included all parents with infant's boys with 10 to 11 month in Tehran. Among them, 150 infants with and 150 infants without the experience of kindergarten using the multi-stage random sampling the method was selected as the sample groups. Data collection tools included an infant movement motivation questionnaire and Peabody Developmental Motor Scale–Second Edition (PDMS-2), the data analysis was done using Pearson’s correlation coefficient, linear regression, and t-test in a significance level of p≤0.05. The results showed that there was a significant relationship (P=0/000), between movement motivation and motor development in infants with and without the experience of kindergarten. In the same context, a significant difference (P=0/000), was obtained in movement motivation and motor development between of infants with and without kindergarten experience and infants without the kindergarten experience, movement motivation, and motor development was higher. These results indicate that care of infants in kindergarten Centers may be due to the weakness of the programs and facilities have negative effects on of them movement motivation and motor development.

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The purpose of the present study was to determine the role of errorless and error full training on aiming task learning of normal teens and intellectual disability ones. 20 intellectual disability teenagers were selected from an exceptional school and 20 normal children from the Normal school in Ardebil in the range of 11 to 13 years old (M = 12, SD = 0.8). Normal and intellectual disability individuals were randomly assigned to two errorless and error full training groups according to Wechsler's intelligence test and Alloway's working memory test. The task was to throw basketball balls in the form of a chest pass to the targets with concentric circles. These goals were set at the height of the people's chest in the wall. The subjects performed 200 exercise attempts at the acquisition stage in five training blocks. Single and dual task transfer tests were carried out immediately, 24-hour latency and one week's delay. The data were analyzed using two way repeated measures analysis of variance analysis (ANOVA). The findings showed that the group had the least memory involvement and the least error in both subjects type, in the single task test [P<0.05  and in the dual task test were better [P<0.05 . The normal errorless group was not better than the intellectual disability errorless group, but the normal error full group was better than the intellectual disability error full group. The findings of this study are consistent with the Adam's closed loop theory, the reinvestment theory, and somewhat consistent with the estimates of the challenge point framework regarding the error in the acquisition stage, but these findings are somewhat contradictory with the estimates of the schema theory.

 

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The aim of this study was to determine the effectiveness of the type of goal setting and self-recording on acquisition and self-regulation learning of basketball free throw. Seventy middle school student boys were selected for available and randomly allocated to 6 experimental groups and one control group. A factor ANOVA with a significant level of 5% (p < 0.05) was conducted to analyze the self-efficacy and performance data in acquisition and retention tests. The results showed that the goal-setting with the self-recording group has a higher self-efficacy and performance than the goal-setting without self-recording and the control groups in acquisition and retention test of basketball free throw. This research showed that a variety of goals can begin to combine and cause positive results in performance and learning. Self-recording is important for performance and self-efficacy and can be easily taught and used during physical education sessions.

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Abstract
The purpose of this study was to examine the relationship between motor competence, cardiovascular fitness test and physical activity of adolescents with the role of mediation of perceived competence.  The research sample consisted of 386 adolescent boys. Perceived competence was measured using Physical Ability scale of the short form of the Marshall Self-Descriptive Questionnaire (2010). From the pedometer And physical activity questionnaire for older children was used to measure physical activity,  and using Bruininks-Oseretsky Test test for measuring motor competence and a 1600-meter test for cardiovascular fitness test. The results showed a significant correlation between motor competence, perceived competence, cardiovascular fitness test and physical activity. Perceived competence  mediates association between motor competence and physical activity, fitness and cardiovascular fitness test. Finally, the results of the model showed that perceived competence had the most impact on the participation of adolescent physical activity. Also, motor competence has a greater effect on cardiovascular fitness test than perceived competence. According to the results of the research, educational programs should be designed and designed according to the importance of motor competence and perceived competence to improve participation of physical activity and physical fitness of adolescents.
 

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One of the recent research challenges in the field of attentional focus instructions, are the study of its effects on the performance of elite athletes in continuous tasks. The aim of this study was to compare the effects of different attentional focus instructions on performance of agility in elite futsal players. Participants included 12 elite futsal players (mean age 23.91±1.56) that were selected from the first league of Division Qom via convenience sampling method. Participants were asked to perform the agility L run test under three attentional focus  instructions (the internal, external and control) in three trials. Rrepeated measure Analysis of Variance and paired t test were used for analysis of data. The results showed a significant effects of the type of attentional focus  instructions on  test execution time. Analyses showed that performance in the external focus of attention was higher than the internal focus conditions. Also, the result demonstrated that there is no significant difference between internal focus of attention and control conditions, and also between external focus of attention and control condition. The results of this study provide evidence that in skilled athletes, executing the continuous tasks improve through verbal instructions that conduct focus of attention externally.
 

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Few studies have investigated dimensions of attention out of laboratory settings. The aim of this study was to investigate the interaction between internal/external and associative and dissociative attention and its role in expert judo players’ technical performance during competition. mixed method approach with parallel-design was used. In the qualitative section of the study, expert judo players’ attentional strategy was explored using self-confrontation interviews. In the quantitative part of the study, differences between reported foci in successful versus unsuccessful trials was tested.  Analysis of interview transcripts revealed that expert judo players had more focus on external-associative dimension in both preparation and execution phases. In addition, results of chi-square test indicated a significant difference between judo players’ focus of attention in successful versus unsuccessful trials (p < 0.05) with more focus on external-associative attention in successful trials. In conclusion, while this study does not support use or advantages of dissociative attention in skilled performers, provided more support for constrained-action hypothesis as indicated more use and advantages of adopting an external-associative focus for expert level judo players.
 

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The purpose of this research was to investigate the structure of the ball behavior in the futsal teams during the offensive  phase. The type of research was observational and the data extracted from the 12 games in the training matches of the players of the futsal resistance team present at the Premier League matches of 97-98 were recorded and analyzed. Using the SOCNET software, the values of the cluster coefficient were calculated and using the MATLAB software, Shannon entropy values for each team were calculated. The results showed that by increasing the number of training sessions, the values of the cluster and entropy coefficient of Shannon increased in both teams and there is a moderate correlation between the values of the cluster coefficient and Shannon entropy was observed with the number of training sessions. In general, and according to the results of this study, the functional variability of ball behavior patterns increased with training and team experience, and the level of complexity and unpredictability of the team network increased. According to the sensitivity of the behavioral patterns of the ball to the effects of training, sport analyzers can use the information from this level of analysis to explain the team's synergistic behaviors in futsal teams.

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The aim of this study was to investigate the role of attention in skilled performance in real conditions, using a mixed-method study. Fourteen expert judo player participated in the study. The stimulated recall was used in the qualitative phase of the study to explore athletes’ attention in real competitive conditions. In the quantitative portion of the study, number and percentages of foci in preparation phase, execution phase, and total (preparation +execution) were associated with performance movement time. Our results indicated that while attention during execution phase was not associated with performance time, attention in the preparation phase was associated with better performance time. specifically, less attentional cues with higher percentages of focus on the opponent resulted in more quick performances. In conclusion, our findings demonstrate that focus on opponent during preparation phase is associated with superior technique execution during real competitions.

 

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The aim of this study was to investigate simultaneous changes in EMG pattern during learning dart skill in dominant and non-dominant hands. The samples consisted of 10 non-athlete students with an average age of 23±2.5, which were divided into two group dominant hand (5) and non-dominant hand (5). Repeated measures ANOVA were used to measure data at the execution level and changes in EMG activity. The results showed a significant decrease in the absolute error of dart throwing at the performance level and an increase in EMG activity at the muscle level along with a decrease in muscle co-contraction in the acquisition and retention stages in both groups (P<.05). Also, there was no significant difference between EMG activity in the dominant and non-dominant hand groups after skill acquisition (P>.05). Generally, the results of this study showed that along with relatively constant changes in performance during dart skill learning, relatively constant changes in EMG patterns also occur, so that the concept of motor learning is also observed at the muscle level. Also, the results of this study supported the existence of the same motor program for dominant and non-dominant hand control, even in the conditions of bilateral transfer control.

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The purpose of present study was to investigate the role of motor learning strategies (linear, non-linear, and differential) in the experience of flow and clutch in beginner footballers. Participants (66, M age= 27.49 and SD =2.68) participated in this study voluntarily and based on inclusion and exclusion criteria. Participants practiced in three groups: linear, nonlinear, and differential, for three months, two sessions each week and each session one and a half hours. The study method was quantitative and qualitative. In the quantitative part, flow and clutch questionnaire was used and in the qualitative part a semi-structured interview was used. The results of Tukey showed nonlinear pedagogy was effective in flow experience and linear method in clutch experience (p<0.05). In the differential learning, flow was experienced more than linear method (p<0.05) and less than non-linear method (p>0.05). In the qualitative part, four factors of purpose, pleasure, effort and exploration are identified that support the results of the quantitative part. Based on the results of this study, nonlinear and differential methods are effective in the flow experience and linear method are effective in the clutch experience.

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The aim of this study was to compare the effect of training type (full-error and error-less) and skill level on the development of mental representation of putt golf skill. For this purpose, 44 undergraduate physical education students (22 women, 22 men; mean age 22.34 and standard deviation 4.37) were randomly divided into two groups: error-less (near-to-far) and full-error (far-to-near). The two groups practiced in the one-day acquisition phase of 3 blocks of 10 attempts for throwing distances (25, 50, 75, 100, 125, 150 and 200 cm). The error-less group started training from the closest distance to the goal and reached the farthest distance, respectively, but the full-error group started training from the farthest distance and finally reached the closest distance. At the end, they were tested immediately. One day after the acquisition phase, delayed retention tests, single task transfer (from a distance of 225 cm) and dual task transfer (from a distance of 200 cm simultaneously with audio playback) were performed. To compare the effect of error-less and full-error training on the acquisition, retention and transfer of putt golf skills, data analysis of the acquisition stage was analyzed by repeated measures analysis of variance (2×8). SDA-M test was used to measure the structure of mental representations formed in the two groups before and after the acquisition period, and hierarchical cluster analysis  0.05) was used to analyze the mental representations.  Our Findings showed significant functional changes in the post-exercise mental representation structure, suggesting that motor skills are associated with functional adaptation of action-related knowledge in long-term memory.

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Considering the rapid process of technological changes, if a business cannot adapt itself to the changes in the environment, it will no doubt stop competing. Therefore, the entrepreneur should make a decision in the shortest possible time to take advantage of the opportunity. It has become more difficult, so this research was done with the aim of deciding to take advantage of the opportunity by emphasizing the role of the entrepreneur in sports businesses. This research is in terms of mixed method, in terms of developmental-applicative goal. In the first step, 36 indicators were identified from 32 articles, and in the second step, 36 indicators were extracted by the theme analysis method, and 27 indicators were confirmed by the Delphi method, and in the third step, 34 themes were identified from the lived experience of 6 people. Sports entrepreneur leaders were identified by research narrative method, and finally, after combining and integrating the three stages, 44 identification indicators were found in a 7-dimensional template, whose suitability and validity were confirmed using the t-test and the four criteria of adaptability, comprehensibility, generalizability, and control. became. Based on the findings, the entrepreneurial personality by creating seven roles of self-efficacy, independence, risk-taking, individual characteristics, creativity, effort and perseverance, entrepreneurial network and entrepreneurial skills and experience in improving decision-making in order to take advantage of entrepreneurial opportunities in sports and reduce environmental risk. There is a punishment.
 

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The growth of Kabaddi sports, its development and progress, requires the ability to anticipate uncertainties. As a developing sport in Iran, kabaddi has seen a lot of progress, but at the same time, challenges may still affect its future, especially since there is limited understanding about its possible future and the ways in which There is a corresponding future to be traversed. Therefore, in this study, a multi-stakeholder scenario planning was used to develop future scenarios of Iran's Kabaddi sports, using stakeholders' points of view on the trends and critical uncertainties that may shape the future of Kabaddi sports to create action-oriented strategies. The participants of the present analytical and exploratory study included 28 domestic and foreign beneficiaries of Iran's Kabaddi sports, who were selected based on targeted sampling. Data was collected through interviews and open questionnaires. Data analysis was done with the six-step model of combined scenario planning of Lipzig and Rollandberger. The findings and analysis of 29 main factors obtained led to the production of two key uncertainties and four scenarios with titles of champion, super league, active lifestyle and always loser. In order to develop Kabaddi sports in Iran, there should be a transformation in the structure of the process with the aim of institutionalizing Kabaddi sports in geographical dimensions with a professional and universal approach.