جستجوی مقالات مرتبط با کلیدواژه « تنیس روی میز » در نشریات گروه « تربیت بدنی »

The aim of the current research was to identify the talent criteria of table tennis athletes using the talent evaluation method. For this purpose, 40 male and female students who participated in the table tennis championship of Mazandaran schools in elementary school were selected through targeted sampling. They had an average age of 10.83±1.8 years, an average height of 145.76±5.7 cm, and an average weight of 46.34 ± 2.39 kg. To determine the talent indicators, various factors such as running at maximum speed, agility, vertical jump, dribbling speed, goal evaluation, ball skills, throwing the ball, reaction time test, and prediction skill were measured and compared with the ranks achieved in the competitions. The data was analyzed using analysis of variance, Pearson's correlation, and t-test with SPSS software version 23. The research findings indicate a significant relationship between talent indicators and the obtained ranks, suggesting that these indicators can serve as primary factors in identifying talented individuals in the field of table tennis. Coaches and talent scouts can utilize these strong indicators to enhance the talent identification process.

The purpose of this study was to provide a model for the international development of table tennis in Iran. From the paradigm perspective, the present study was postmodern. This was a qualitative and exploratory type which uses grounded theory strategy, and hidden content analyze, and in terms of purpose was fundamental research. The data collection method was in-depth and semi-structured interviews. The statistical population of the research was the table tennis experts, including the coaches of the national table tennis teams of Iran, the senior managers of the Ministry of Sports and Youth and the Table Tennis Federation, faculty members of the university, 16 of them were considered as sample group by snowball sampling method. After analyzing and extracting the meaningful units using MAXQda 2020 software, finally 450 initial reports with a total frequency of 821 were ready to be categorized. 13 main categories of primary codes in the section of factors affecting the development of international table tennis in Iran, including: educational institutions, the nature of table tennis, the development of public sports, media, motivational factors, talent identification and government, Economic, infrastructure development, specialized and technical, social factor, management and human resources factor were counted. Also, 10 main categories in strategies including: communication, human resource management, supervision, motivational, economic, technical and specialized, managerial, Cultural strategic and international, as well as in the consequences section, the main categories including technical and specialized consequences, equipment development, motivational, international, health, economic, social and ideal were discovered and counted. The international development of table tennis in Iran requires strategic categories that have been mentioned in the present study, and using the results of the present study, this popular sport can be considered as one of the fields prone to winning medals in international arenas in the coming years.

The purpose of this study was to determine the effect of attention networks training on gaze behavior and accuracy of performing the forehand table tennis skill. The present study was semi- experimental with pre-test and post-test design with a control group. Forty-two students of Shahid Beheshti University (18-23 years) participated in this study voluntarily and were randomly divided in three groups including alerting, orienting, executive control and one control groups. Before and after eight sessions, the participants had been tested for accuracy, and their gaze behavior was recorded using the eye tracking system to determine the duration, number and location of fixation. Data were analyzed by repeated measure mixed ANOVA 3(test)*4(group) at a significance level of 0.05. The results showed that the presented instructions improved the accuracy of individuals' performance in the retention test compared to the pre-test, but there was no significant difference between immediate and delayed retention. The results related to the stabilization period to find the target also showed that there was a significant difference between the orientation and executive control groups in delayed retention that the orientation group showed a longer stabilization period. Also all exercise groups had more fixation in immediate and delayed retention than pre-test. Therefore, it can be said that in this study, the practice of attention networks improved the performance accuracy of beginners in the task of forehand table tennis and to some extent was able to improve the pattern of gaze behavior of this people.

The purpose of this study was to determine the effect of Quiet eye training on gaze behavior in children with attention deficit hyperactivity disorder (ADHD) of forehand skill in table tennis. Method, In order to, thirty children aged 12-7 years old were selected from ADHD children at Imam Hossein Hospital in Tehran and randomly divided into two experimental and control groups. Protocol of the training were performed in 16 sessions and follow up test after six of inactivity. Learning was investigated in the form of change in gaze behaviors such as onset, offset, duration of quiet eye and frequency gaze. The results of the research indicated that the decrease in frequency gaze and onset quiet eye and increase offset and duration of quiet eye in ADHD children. However, there was a significant difference between the two groups of experimental and control groups in frequency gaze. Offset and duration of quiet eye in children who have advanced progression from pre-test to post-test will be more stable over time. Conclusion, the present study confirms that the use of quiet eye training as a perceptual-motor training protocol can be effective for ADHD children by changing the visual perception pattern. It is suggested that a quiet eye training be used as a learning tool for ADHD children.

The aim of this study was to investigate the employment of working memory in participatory dyad training on learning forehand table tennis skills of adolescent girls. Participants were selected convenience sampling form from 24 junior high school girls in Nahavand city and were randomly divided into two groups of low and high cognitive load. Both groups performed five sessions of participatory dyad training with their respective level of cognitive involvement that each session consisted of 20 sets of 3-minute with a 1-minute rest time between sets. The performance of table tennis forehand was measured in the pre-test, post-test, retention and transfer stages. The results showed that both low and high cognitive groups showed significant progress from pre-test to transfer; Also, the high cognitive group performed better in the post-test, retention and transfer stages than the low cognitive group. Therefore, high cognitive load during the participatory dyad training facilitates learning forehand table tennis skills.

The purpose of the present study is to review the effect of media consumption on the athletic performance with the intervening role of quality of life among table tennis athletes in the province of Tehran. This study is descriptive-correlational and was conducted through field research using questionnaires. The statistical population consisted of all table tennis athletes in the province of Tehran among whom 1500 members were active according to the obtained information from the province assembly. Based on Morgan table, 306 athletes were chosen as the sample of study. In this regard, three questionnaires including Media Consumption by Mahmoudian et al. (2015), World Health Organization Quality of Life (1999), and Athletic Performance by Qasemi (2012) were used.  The reliability of the questionnaires was calculated to be 0.86%, 0.081%, and 0.91% respectively. Descriptive statistics was used for the classification of raw scores, design of frequency distribution table, and assessment of dispersion indices such as mean, standard deviation and frequency. Besides, the research hypothesis was tested using Path Analysis and SPSS. The results showed that media consumption is effective on the athletic performance of table tennis athletes with the intervening role of quality of life among table tennis athletes in the province of Tehran.

The aim of this study is to identify the factors affecting the international development of table tennis in Iran. From the paradigm perspective, this research is an interpretive research, a qualitative approach, a grounded theory strategy, and a hidden content analysis tactic. The present study is of exploratory nature. The statistical population of this research included the table tennis experts, , the coaches of the Iranian national table tennis teams, senior managers in the Ministry of Sports and Youth and the Table Tennis Federation, were members of the scientific board in the field of sports management. Data were collected through in-depth interviews with these individuals. 226 Preliminary codes were extracted from the initial interviews regarding the factors influencing the improvement of Iranian international table tennis, with the frequency of 460. 13 main categories and 37 pivotal categories were considered regarding the factors affecting the international development of table tennis in Iran. The highest coefficient of importance belonged to managerial factors and specialized and technical factor that were calculated with the coefficient of importance 104 and 80, respectively. Also, the lowest coefficient of importance was related to the category of government and governance, the nature of the field and the media factor that were as 7, 12 and 13, respectively. Managers of the Iranian Table Tennis Federation should consider the role of causal conditions (economic, social factors, infrastructure development and technical and professional factors), intervening conditions (motivational factors, media factor, nature of table tennis) and background conditions (talent identification, managerial factor, government and governance, educational institutions and the development of public sports) as factors influencing the international development of table tennis.

The aim of this study was to investigate The effect of skill level matching in cooperative dyadic interaction on learning of forehand table tennis skills in adolescent girls. Participants were selected convenience sampling form from 24 junior high school girls in Nahavand city and were randomly divided into two groups of Novice-Novice and Novice-Expert. Both groups performed five sessions of participatory dyad training with their respective arrangement (novice- novice, novice- expert) that each session consisted of 20 sets of 3-minute with a 1-minute rest time between sets. Using table tennis forehand shot accuracy test, the motor performance was measured in the pre-test, post-test, retention and transfer stages (Merely forehand performance with increasing throwing speed of ball thrower). The results showed that both Novice-Novice and Novice-Expert groups showed significant progress learning of forehand table tennis skills; Also, the Novice-Expert performed better in the post-test, retention and transfer stages than the Novice-Novice group. Therefore, Novice-Expert arrangement than Novice-Novice during participatory dyad training facilitates learning forehand table tennis skill.It revealed that novice-expert arrangement is more efficient in comparison to novice-novice arrangement as the former enjoys the benefits of using the optimal observational pattern (seeing a expert person), and offeres various challenges and strategies for the novice partner as a result of exercising with an expert partner. To conclude, novice-expert dyad practice promotes the speed of learning among table tennis learners.

The purpose of this study was to identify and validate the indicators and components affecting the International Development of Table Tennis in Iran. From the paradigm perspective, the present study was a type of pragmatism, mixed approach, exploratory-field nature, phenomenological and survey strategy, and applied in terms of purpose. The data collection method was indepth and semi-structured interviews (qualitative section) and a questionnaire. The statistical population of the study was experts from the national tennis teams of Iran, including the coaches of the national tennis teams of Iran, senior managers in the Ministry of Sports and Youth and the Tennis Federation. The coaches of the various tennis leagues, the tennis boards, the staff and experts of the Ministry of Sports and Youth and the Iranian Tennis Federation formed the sample members of the research in a small section. At first 226 initial codes including 13 main categories and 37 pivotal categories regarding the factors affecting the international development of tennis in Iran were counted, totally the number of these codes were 460. The reliability coefficient of qualitative research re-coding was calculated to be 0.84. The apparent and content validity in the form of CVR and CVR forms was approved by experts and the validity of the research questionnaire after performing the exploratory analysis process. Fit of the model with SRMR calculation equal to 0.066 which showed the optimal fit of the model. Economic factors (0.503), social factors (0.438), infrastructure development (0.43) and technical and specialized factors (0.44), motivational factors (0.373), media factors (0.518), the nature of tennis (0.004) ), Talent identification (0.497), managerial factors (0.530), government and governance (0.458), educational institutions and development of public sports (0.472) as indicators and components affecting the international development of tennis are discovered and validated in which all were reported to have high and medium quality upwards with Q2 calculation

It seems that sport is as an important part of development in sustainable development. The purpose of this research was the perspective of strategic spatial planning for table tennis in Esfahan province. Statistical population consisted of sports experts in Isfahan province. 78 subjects were selected by the purposive random sampling method. A combination of qualitative and quantitative methods coefficient initial questionnaire and open interviews and ratings were used for data collection and analysis. The research instrument was a self-made checklist in which respondents were asked to indicate the strengths, weaknesses, opportunities and threats of the sport's List, while using geographic information system (GIS) to provide descriptive-analytic model, and part of the data in the software Arc - GIS analysis to investigate. The overall result of the study showed that there is an unbalanced distribution of table tennis facilities and spaces in the province, In addition, with regard to the Matrix positioning and strategic action status table tennis in Isfahan province was competitive.

The purpose of this study was to determine the effect of distribution of practice on the acquisition, retention with different intervals 1, 7, and also judgment of learning accuracy of forehand drive in table tennis. The 32 female student with 18- 24 years old that passed specialized table tennis unit, contributed as convicted. They randomly were divided to massed and distributed practice groups. The skill used in this study was the forehand drive. After pretest, the massed group practiced all 240 Trails in one session, and the distributed practice group practiced 60 trials per day on 4 consecutive days. After acquisition phase, Participants were asked to predict performance on the retention phase. Participants were asked, “what would you predict your average score on the first the retention test? “And then half of participants of each group contributed for a retention test 1 day later, half of other participants of each group contributed for retention test 7 days later. The data were analyzed by independent sample t test and two –way analysis of variants (ANOVA) with repeated test. The result showed significant differences between massed and distributed practice groups in the acquisition, retention (1, 7) test and also judgment of learning (p

This study aimed to investigate the comparison of prevalence of trunk dysfunction among athletes in three different sports. Thirty athletes were assessed in a purposely available manner, from each sport by Tuck jump test, and individuals with trunk dysfunction were compared with each other. Analysis of variance ANOVA and Chi-square tests were used to analyze the data. The results showed that there was no significant difference between Tuck jump test scores and trunk dysfunction among three different sports, but valuable information such as the percentage and number of people with trunk dysfunction in table tennis, cycling and swimming (breaststroke and butterfly stroke swimmers), which have different natures and movement patterns, was obtained. By accurately screening, assessing and identifying the trunk dysfunction, the risk of injury, especially anterior cruciate ligament injury, which has a direct relation with trunk dysfunction, can be reduced in athletes.

Exercise as a specific form of physical activity arrow could have a significant impacts on development’s process of body posture. The aim of this study was the investigation of musculoskeletal disorder(kyphosis, lordosis, and Forward Head) between table tennis players and normal range of Iranian non-athlete subjects .

In this study 30 table tennis players were selected (mean age, height and weight of 19/86 ± 2/74, 170/8 ± 3/33, and 68/2 ± 3/3 respectively). their Lumbar Lordosis, thoracic kyphosis were measured by flexible ruler and forward head was measured by photogrammetry and image camera.

Results showed that The mean degree of forward head (48/2 ± 5/6) and kyphosis (43/92 ± 4/44) in table tennis players were significantly greater than non-athletes persons and mean degree of Lumbar Lordosis (27/6 ± 6/73) in table tennis players was smaller.

It can be concluded that posing specific postures during the table tennis increases forward head posture and kyphosis as well as decreased Lumbar Lordosis among table tennis players. Therefore, stretching and strengthening exercises are recommended to prevent and correction athletes from developing these abnormalities.

The aim of study is investigate the role of media communication and efective advertising in attracting the financial supporter for the Table tennis in the East Azerbaijan Province. This research is applied in terms of purpose and is descriptive – survey. The statistical population was all of the sports management professionals, Media Professionals and also Board members on the table tennis in East Azerbaijan province; that was estimated 210 persons. The sample size was found 132 people by Morgan table. Validity and reliability of questionnaires used by researchers in various researches have been confirmed and confirmed. Analysis of data was performed by using the SPSS software (version 21) and Excel (version 2010). Shapiro - Wilk Test was used for study normality of data distribution, and was used Linear regression Test and Friedman test for testing the hypotheses. Results show that, the media communications and advertising can positively and significantly predict attracting public resources, attracting sponsors of the private sector, advertising revenue during the tournament, revenues from sports competitions, and marketing and introducing services and products. With regard to the results, it can be stated that the media and its various roles are an essential element in advertising and sponsorship; Therefore, if investments, sponsors, advertising, media and sports are placed in a positive and principled interaction together, they will grow and expand together and, as a result, engage in different sectors of society and, most importantly, It will boost the country's sport.

Neurofeedback training are increasingly used for optimizing various brain functions. The aim of this study was to investigate the effect of neurofeedback training on accuracy of novice table tennis players. For this purpose, 16 novice players, aged 10 to 15 years, volunteered to participate in the study, being placed in two “physical” and “physical plus neurofeedback” training groups. The “neurofeedback plus physical” training group performed twelve sessions of a 30-minute neurofeedback training, including sensory motor rhythm protocol. The results of the repeated measure analysis of variance showed significant difference between two groups in accuracy of forehand and backhand strokes, furthermore, the performance results were totally improved for the neurofeedback plus physical training group. The extensive needs for fundamental cognitive processes existing in keeping attention, working memory and psychomotor skills, are facilitated by sensory motor rhythm training.

Identifying the most effective training methods for developing the physical and functional abilities of table tennis players is of particular importance for coaches. Therefore, the main aim of this study was to compare the effects of two selected exercises methods on some physiological and performance variables of table tennis players.

Sixteen male adolescents table tennis players were voluntarily selected and optionally assigned in (i) combined (BMI=19.65±1.3 kg/m2; n=8) and (ii) traditional (BMI= 19.21±1.1 kg/m2; n=8) groups. . The exercise interventions include two traditional training methods with an emphasis on skill training and selected combined exercise with focused on strength-endurance training. The experimental groups performed 8-week/three sessions per week, respectively. Some effective variables in the performance of table tennis players were measured before and after the interventions in relatively equal conditions. The research data analyzed with ANCOVA statistics at a significance level of p <0.05.

The findings showed that in speed (Combined -11.9 vs. Traditional-0.5%), agility (Combined 8.9 vs. Traditional 0%), aerobic power (Combined 14.5 vs. Traditional-17.3%), peak anaerobic power (Combined 5.9vs. Traditional -23.4%), and handgrip strength (combined 25.9vs. Traditional 4.4%), significant improvements were observed in the combined exercise group (P>0.05). Although, in the topspin forehand (Combined 46.5vs.74.7% Traditional), and topspin backhand skills (Combined 51.2vs. Traditional 83.2%), the subjects of the traditional group showed significant improvements (p>0.05).

It is concluded that the physiological parameters of table tennis players in the traditional exercise group did not change, and even the players may experience a decrease in performance in consecutive matches.

The purpose of present study was to investigate monitoring pressure on decision making and relate it to decision specific reinvestment. Subjects were 25 expert Ping-Pong players in which they performed a Ping-Pong simulated decision making task using option generation method under two conditions of low and monitoring pressure. Also, the Persian version of decision specific reinvestment scale and competitive sport anxiety inventory-2 were used. Results of multivariate analysis of variance with repeated measure revealed that pressure had a significant effect on cognitive anxiety (P≤0.05). Also, the results revealed that there were significant differences between some decision-making variables including first option quality, dynamic inconsistency and generation time under low and monitoring pressure (P≤0.05). Decision reinvestment only could predict the first option quality changes. Thus coaches and athletes are offered to have knowledge about the different pressure conditions and expert athletes to avoid the self-focus intentions under pressure.

the effects of meta-cognitive and cognitive strategies and difficulty making decision on accuracy of forehand top spin of table tennis. The 29 male players (21.20±9.24 years old) were divided into 3 groups Meta cognition strategies, cognition strategies and control group. The difficulty making decision was determined by color of ball and impact place forehand top spin. Before the training of subjects, pre-test was performed. The subjects in the acquisition, 15 blocks of 20 trials practiced, and both in the retention and transfer tests (after a 48 hour), 1 block of 20 trials practiced.The databy ANOVA with repeated measures, one-way ANOVA.The results showed that there is a significant difference between the self-regulation strategies practice groups and various groups in retention and transfer phases. These findings suggested that f meta-cognitive strategies is the effective variable in performance of skills that needs levels of difficulty making decision

The purpose of this study was to investigate" The effect of mindful Meditation on the mindfulness' state, flow state and performance in table tennis players. 30 subjects were selected as samples and randomly divided into experimental and control groups. The mindfulness inventory for sport, flow State Scale and sport performance tests were used to collect the data. The experience group were under the mindfulness training protocol for six weeks and two sessions weekly. The variance analysis with repeated measurements were used to compare the variables between two groups. The results show that the mindfulness state, flow state and performance, have been globally improved significantly in experimental group compared to the control group. Hence the findings show that the effect of mindful meditation on mindful state, flow state and sport performance, can therefore be used as mediator to improve sport performance along with the other psychological skills

Shoulder impingement syndrome is associated with alterations in scapulohumeral muscles activity in sports such as table tennis in which hands operate higher than shoulder level and these changes are theoretically related to a change in the motor program strategies. One of the important scales of investigating muscular coordination and motor control in shoulder muscles is the study of the timing of muscle activation. The aim of this study was to examine the difference between muscle activity and inactivity and the activation pattern of the shoulder muscles in the elite table tennis players with and without shoulder impingement syndrome. In this study, 30 male elite table tennis players (age: 20-28 years old) were purposively categorized into 2 groups: with syndrome (n=15, mean age=25.12±1.65) and without shoulder impingement syndrome (n=15, mean age=24.43±1.55). The timing of the activity of the supraspinatus, upper trapezius, lower trapezius, serratus anterior, anterior deltoid and biceps brachii muscles of the dominant upper limb were measured by surface electromyography during table tennis forehand topspin. Shapiro–Wilk test was used to check the normal distribution of the data; then, independent sample t test was used to compare the results of the two groups using SPSS 20 at P<0.05. The results of independent t test showed that serratus anterior (P=0.001) and upper trapezius (P=0.004) were significantly activated sooner and later in the patient group than the healthy group. Also, the muscle activation pattern changed in the patient group compared with the healthy group. These results showed that the function of scapular stabilizing muscles in athletes of overheard throwers fields who had should impingement symptoms is temporally disturbed, and confirms the assumption that shoulder impingement syndrome may be associated with dysfunction of timing and activity coordination of the scapulothoracic and glenohumeral muscles.