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Farhad Ghadiri, Akram Mashaallahi, Ali Akbar Jaberimoghadam,
Volume 1, Issue 1 (9-2011)
Abstract
Physical Self Concept can be affected from interventions such as sport and exercise training. So in order to enhancing the person`s physical characteristics perception and creation the partnership motivation in physical activity, it is important to know a bout the way of affecting this methods of training. Purpose: this study was designed to evaluate the effect of a progressive resistance training program on the physical self concept and body function of boys with cerebral palsy. Methods: Sixteen students [mean age 16.05 years (SD 1.2)] with spastic diplegic cerebral palsy were randomly divided in control (7) and experimental (9) groups. Participants in the experimental group completed a progressive resistance-training program (8 week) using three exercises to strengthen the major support muscles of lower limbs. Pre and post intervention, the physical self- concept was measured by the Physical Self-Description Questionnaire, and body function was measured by the balance test, walking test, stair test, and strength tests of Ankle plantar flexors, Knee extensors, Hip extensors. The data was analyzed via repeated measures and independent T-test.
Results: overall, the body function of experimental group showed a significant changes in balance test, walking test, stair test, and strength tests of Ankle plantar flexors, Knee extensors, Hip extensors (p<0/05). But, difference between the pre test and post test averages of the experimental group in global physical self concept and their subscales was not significant (p>0/05).Conclusion: in order to change in physical self concept via physical activity, it is crucial to control the factors such as period of training, training context, intention of subjects and etc.
Reza Mohammad Kazemi, Yavar Omidi,
Volume 1, Issue 2 (12-2011)
Abstract
Innovation, creativity and change are the key elements and unavoidable factors in sport. The importance of this issue encourages us to study sport from the point of view of entrepreneurship. During the recent years, spreading the sport management and development of entrepreneurship have created a new frame work in sport in a way that a new approach has been appeared regarding sport management and entrepreneurship. For this reason this article aims to study the relationship between entrepreneurship and sport in order to spread and develop the theory of entrepreneurship in sport management.
Through studying the information gained in economics and sports marketing, we have been given the opportunity to identify the Innovations, proactiveness and risk taking in sport from which the dimensions of entrepreneurship has been out broke in this domain. Moreover, the current article implicitly points out the study related gap between entrepreneurship and sport management by introducing the different kinds of entrepreneurship existing in sport and sport management domains. Finally, suggestions are discussed for future studies.
Elaheh Arab-Ameri, Rasool Hemayattalab, Naseh Karimiyani, Saadi Sami,
Volume 1, Issue 2 (12-2011)
Abstract
This research aims at studying the effect of different Practice Schedules (Blocked, Random, and systematically increasing) on acquisition, retention and transfer different basketball pass Species (overhead, chest and single arm). Subjects included 45 secondary male students (Mean age 17.14± 0.75) whom were assigned into three matched groups Blocked, Random and systematically increasing (its mention increasing systematically contextual interference to in training duration) following pretest. The subjects didn’t have any experience in playing basketball. At the determined and given condition for each group, subjects performed the task for 9 sessions 9 trials in each session. After 24 hour, retention and transfer tests with 4 trials in each pass were taken. Results showed effect of practice session was significant but no significant difference in acquisition between groups. In retention and transfer tests, there were significant differences between mean scores of practice groups, that supported Magill and Hall theory (1990) and challenge point idea of Guadagnoli and Lee (2004).
Ahmad Farrokhi, Samira Aghasi Brojeni, Ebrahim Motesharee, Abolfazl Farahani,
Volume 2, Issue 3 (8-2012)
Abstract
Perfectionism and mood states are psychological constructs which according to the results of recent studies, have substantial role in sport performance. The purpose of this research was to determine and compare therelationship between sport perfectionism and mood states inteam and idiviual sports athletes. The Research method used is descriptive with a correlative approach. Based on random sampling, 70 athletes in individual fields and 70 in team fields have selected from national super league. for data collection, two questionnaires of sport perfectionism, Dunn,et al (2006) and Brums, Terry et.al (2003) were used and for data analysis took Pearson correlation coefficient, independent t-test and Z Fischer. The results indicated that in team and individual fields, there was a positively significant relationship between concern over mistakes as a negative aspect of perfectionism and scores obtained on negative mood before competition, while such relationship was negative for vigor. There was no significant relationship between perfectionism of athletes of team and individual but depression and fatigueof team athletes significantly was better than individual athletes. Finally the results of Z Fischer test showed no significant difference between perfectionism correlation coefficients and mood states before competition in team and individual athletes. Negative performance via negative reaction mechanism regarding to error and mistake causes negative mood while positive perfectionism due to motivational effects results in improving positive mood.
Maryam Nezakat Alhosseini, Abbas Bahram, Ahmad Farrokhi,
Volume 2, Issue 4 (12-2012)
Abstract
The purpose of this study was to examine the effect of self-control feedback on the learningof generalized motor program and parameters during physical and observational practice. Participants (n=90) were randomly assigned to physical and observational practice (self-control, yoked and instructor KR) groups. They practiced a sequential timing task. The task required participants to press four keys (2, 6, 8, and 4).They performed 72 trials during the acquisition phase and 12 in retention and transfer phase. The analyses demonstrated that during the acquisition phase, relative timing errors were lower for the self-control and instructor groups. During the retention and transfer phase, relative timing errors were lower for the self-control groups and instructor groups. This might explain self-control feedback and physical practice develop the generalized motor program but not parameter learning and support the theoretical separation of GMP and parameter processes.
Ali Akbar Jaberi Moghadam, Ebrahim Motesharee, Shahzad Tahmasebi Broujeni, Javad Afshari,
Volume 2, Issue 4 (12-2012)
Abstract
The aim of this research was to determine the effect of different training environments, type of skills and interactions on open and closed skills. The statistical population was all students living in dormitories of Tehran University in the 88-89 academic year. The sample was 60 people selected based on convenience sampling methods among students who had no experience in badminton skills (Long Service and clear). Based on pre-test subjects were matched in six groups of ten persons (noncompetitive, competitive, and combined). All of six groups performed a practice in defined medium for 10 sessions and each session were performed 40 times. The long-service tests were used to measure open badminton skill and clear test was performed to measure closed skill. Test scores of subjects were computed based on the mean of ten hits score. Descriptive statistics were used to determine the mean and standard deviations and to test research hypothesis, a two-way analysis of variance (ANOVA) with repeated measures and independent t-test were utilized. The result of ANOVA showed that exercise in each of the training environment increased acquisition and retention of each skill, but the levels are different (p<0.05). Also, Factorial ANOVA showed that the skills and environments does not have meaningful effects on acquisition and retention of skills while each skill interacts significantly with the training environment (p<0.05). In addition, exercising each of the skills in the same environments had different levels of acquisition and retention.
Hossein Eydi, Rahim Ramzaninezhad, Bahram Yousefi, Seyyed Nasrollah Sajjadi,
Volume 2, Issue 4 (12-2012)
Abstract
It is widely recognized that the performance measurement of organizations should help them in their strategic decisions and in their capacity to evaluate their successes. This study uses the Competing Value Framework )CVF) for measurement the organizational effectiveness of four federations of basketball, handball, taekwondow and Weight lifting. Those federations were selected according to a goal oriented and non casual method that all of sport federation stakeholders (professional employee, president, and vice-president, secretary, coaches, national athletes and referees) selected as a sample (N=236) and 167 people participated in research (70 0/0). Self-management OE questionnaire in sport conducted according to survey of literature and using exploratory factor analysis in study showed the 62 questions that evaluate four quadrant and eight sub factors of human relations model (Flexibility, Resources) Internal process model (organizational interaction, Stability) open systems model(worked force cohesion, worked force expert) and rational-goal model (Planning, Productivity), according the CVF. Result showed that between four quadrants of effectiveness in sport federations, rational goal model (Planning, Productivity) has a most important quadrant. Descriptive result of eight factor of effectiveness in CVF showed that factors of flexibility, planning, organizational interaction and human resource cohesion basketball, in factor of resource, productivity and human resource expert the tekvandow and in a stability factor Weight lifting has a good state in comparison of other federations.
Mohsen Behnam, Mehrzad Hamidi, Hamid Reza Ahmadi, Hossein Bakhshandeh,
Volume 2, Issue 4 (12-2012)
Abstract
This research aims to determination effect of changing coach on team’s performance in the Iran’s Football Pro-League during season. The method applied in this research is causal-comparative. The participants in this research were all the 54 teams in Iran’s pro league during three seasons (2008-09, 2009-10, 2010-11) and 30 teams which changed coaches were chosen as a sample. Variance analysis results showed that changing coach had no effect on team’s performance in none of 1, 2, 4, 8, 10, 12, 16, 18, 20 games before and after changing coach (p<0.05). Changing coach in short term had a few effect, and had no effect in long term on team performance (p<0.05). It seems that changing coach is not the only option to improve team’s performance. Other elements like player’s motivation, on time salary reception, rewards, player’s quality, referee’s quality and etc. can affect team’s performance.
Maryam Abdolshai, Ahmad Farokhi, Ali Akbar Jaberi Moghadan, Seyed Mohammad Kazem Vaez Mosavi, Anooshiravan Kazemnejad,
Volume 3, Issue 5 (4-2013)
Abstract
Recent evidence suggest that massive amount of practice of a skill results in the development of a specific memory representation that is distinguished by its enhanced performance capability relative to the other members of the same class that is uniqe and termed 'Especial Skill'. This study aimed to investigate the emergence of special skill and reevaluation the visual-context hypothesis using badminton players in three skill levels (expert, skilled, less-experienced). Subjects (10 players in each group, mean age=23.12 ±3.85 years) performered 100 backhand short serves at five distances (1.5, 2, 2.5, 3, 3.5 meters from net) in each of environmental conditions (normal and covered court). The regression analyze showed that accuracy in skilled group at 2 meters distance was significantly better than predicted by regression equation, supporting the especial Skill effect, but it wasn’t showed in two other groups. This specific advantage of practice at this point was not emerged at absence of visual cues that supported the visual-context hypothesis.
Mohammad Ali Besharat, Mohammad Hossein Ghahramani, Nasoor Ahmadi,
Volume 3, Issue 5 (4-2013)
Abstract
The aim ofthisstudy was to investigatedifferentaspects ofimpulsivityin the athletes of contact and non-contactsports. volunteer participants were 60 athletes of contact (age: 25.9±4.6 years) and non-contact (age: 27.6±4.9 years) sports. Participants were asked to complete the Barratt’s Impulsivity Scale (BIS-11) and participate in continuous performance test(CPT). Multivariate analysis of variance results indicated that there was significant difference between athletes participating in contact and non-contact sports in the continuous performance test items(F2,117= 3.27, p=0.001, partial &eta2=0.89) and impulsivity scale factors(F3,116=47.66, p=0.001, partial &eta2=0.55).So that, in the attentional, motor, and non-planning impulsiveness and at the number of correct recognition in continuous performance test, the athletes of contact sports get more points than the athletes of non-contact sports. In contrast, the athletes of non-contact sports get more points in the average of incorrect time and the number of incorrect recognition than the athletes of contact sports. Therefore Thisfeature is effective in motor and non-motor behaviors of athletes in some special conditions that will appear as immediate and sustained function.
Yaser Khanjari, Elahe Arab Ameri, Razieh Garooei, Ebrahim Motashareei, Rasool Hemayattalab,
Volume 3, Issue 5 (4-2013)
Abstract
The purpose of current study was to consider a course of doing psychological skills training (PST) program on chosen mental skills and the performance of teenager female taekwondo athletes with mean age 16 years of Iranian national team in 2009. The current study is in tentative type and pre and post test design with control group. To do this 22 people (female) among invited people to the camp of taekwondo national team in teenager level for participation in Asian competition of Kish were randomized and then were separated into two groups of control (10) and experimental(12). Then both of them completed the OMSAT-3 questionnaires in pre-test stage, so that to be evaluated from the view of mental skills and making check list for performance evaluation. According to gained results of questionnaires in pre-test stage and based on subjects weakness in skills of reaction to stress, fear controlling and concentration, an exercise package of purposing, goal setting, relaxation and imagery was used as PST program. After 4 months PST program of both groups was performed. Collected data was considered by independent statistical t-test. The results of this study showed that there is a significant difference between control and experimental groups in skills of reaction to stress and concentration after doing a course of PST program (P < 0.05). But there was no significant difference between these two groups in skill of fear controlling (P > 0.05). At last the results showed that there is a significant difference between control and experimental groups in performance after doing a course of PST program (P < 0.05).
Homayoon Abbasi, Seyed Nasrollah Sajjadi, Anooshiravan Kazemnejad,
Volume 3, Issue 5 (4-2013)
Abstract
Today, the organizational culture variable is the main focus of analysis in many organizational studies. In the last years, this construct, has found special status in the field of sport management researches. This study aims to validate and investigate the psychometric properties of organizational culture assessment instrument (OCAI) based on the competing values framework model (CVF) in Iranian sport organizations (federations). The methodology of the present research is based on a correlation study (A factor analysis type of covariant matrix or correlation through principle components analysis method). The statistical population includes 52 sport federations (703 sport experts). In confirmatory factor analysis (CFA) method, the number of samples was determined according to the number of variables and 253 subjects (83.77%) were selected in a stratified random sampling method as final samples. The data were collected through OCAI and the construct validity, also, analyzed using LISREL 8.70 software and a CFA method. The results obtained showed that OCAI questionnaire was a multi-dimensional construct and the four OCAI factors were confirmed to be as cultural profiles: Clan (6 items), Adhocracy (6 items), Market (6 items) and Hierarchy (6 items). The other result, confirmed the OCAI reliability suitability by computing internal consistency through cronbach &alpha test (r=0/86). Considering the confirmation of psychometric properties of OCAI and cultural profiles in factor analysis, organizational culture assessment instrument (OCAI) based on the competing values framework model (CVF) seems to be an appropriate instrument and theoretical framework for assessing the organizational culture in Iranian sports organizations (federations). Therefore, it is suggested that sport management researchers attempt to assess the organizational culture by using OCAI questionnaire in Iranian sport organizations.
Karim Beglar, Mohammad Hossein Alizadeh, Mohammad Khabiri, Farshid Tahmasebi, Benyamin Ghelichpoor Dashliboroon,
Volume 3, Issue 6 (12-2013)
Abstract
Introduction: Injury is common incident in most of the sports and games. There are many reasons for the factors incident of injuries, the psychological aspect can be considered as one of them. Method: The aim of present study was to examine the relationship between psychological skills and severity of injuries in football players of Tehran premier league. 108 players of Iran premier league participated in the study. Research data was collected by injury report form and Ottawa mental skills assessment tool-3. Pearson correlation test at significant level of 95% were used for analyzing the data. Results: 90.7 % of them resulted in 1-3 days missing of match or training and there is inverse and significant relationship between psychological skills and its subdivisions (P=0/0001) and severity of sport injuries in football players. Conclusion: The findings of present study show that having high levels of psychological skills helps premier league players to handle stressful situations in sports through enhancing self-confidence and other psychological factors confronting harmful psychological factors such as stress and anxiety and lead to decrease in injury severity.
Shahzad Tahmasebi Boroujeni, Mehdi Shahbazi, Keivan Salehi,
Volume 3, Issue 6 (12-2013)
Abstract
The aim of this study was to measure the validity and reliability of perceived motivational climate in sport questionnaire (PMCSQ-2) for Newton and colleagues [2000[. For this purpose, random participants from 553 athletes 13 to 23 years were selected to complete the questionnaire. After applying the translate-retranslate technique, content validity ratio (CVR) and content validity index (CVI) confirmed by 10 Panels (CVR=0.66, CVI=0.97.For determining the construct validity, confirmatory factor analysis (CFA) based on structural equations was used, internal consistency of questionnaire was achieved by Cranach's alpha and Pearson correlation coefficient under test-retest method to study reliability of questionnaire. Results showed that the first model of PMCSQ-2(33 question (, wasn’t able to support the favorable fit and thus eliminated 6 problematic questions. Thereby the final model with 27 questions was included task-oriented climate (TOC) (effort/improvement, important role and cooperative learning) and ego-oriented climate (EOC) (unequal recognition and punishment of mistakes). Hereby, the Persian PMCSQ-2 (PPMCSQ-2) had acceptable fit index (RMSEA= 0.054, CFI= 0.9). Also, Internal consistency was acceptable (TOC=0.827, EOC=0.726 and PPMCSQ-2=0.618) and reliability of PPMCSQ-2(r=0.73) was affirmed. Therefore, PPMCSQ-2 can be used as a valid and reliable instrument to assess motivational climate in the Iranian athletes with the age range of 13 to 23 years.
Alireza Elahi, Mehrzad Hamidi, Mohammad Hasan Peymanfar,
Volume 3, Issue 6 (12-2013)
Abstract
The aim of this study was to rank and analyze the barriers to implementing strategies in the sports system. For this purpose Analytical Hierarchy Process was used. Participants in this study compromised experts and scholars who were familiar with the strategic management in the formulation or implementation of the strategies involved in the sport (n =21). in order to provide couples with the scale AHP and confirm its validity by 6 experts. The weighting and ranking of barriers were identified by the Expert Choice software. Expert Choice software output analysis showed that the barriers to transition strategies with weighted (307/0) is the most important components in advancing the sport implementation strategies. Results also showed that at level 3 hierarchical tree, the lack of meritocracy in sports management (weight 284/0), the most important part of the infrastructure, the lack of attention to executive function of strategic plans in formulation stage (Idealist program) (weight 228/0), The main obstacle to the formulation of strategies, the commitment and belief of the few managers to implement strategies (weight 32/0), the main obstacle to the implementation of transition strategies neglect strategies in implementation in allocation of budget funds (weight 229/0), The main obstacle is the strategies implementation stage. The findings of this study can be a source of solutions for strategic programs formulators and performers in the sports organizations.
Mr Sajjad Azimi Panah, Dr Shahzad Tahmasebi Boroojeni,
Volume 9, Issue 17 (9-2019)
Abstract
Observing a model let learners to make a plan of action that can be used for learning motor skills. Moreover, self-talk is a conversation that performers use it either apparently or secretly in order to think about their performance and reinforce it. Therefore, the purpose of this study was to investigate the effect of observational learning, self-talk and combination of both on boy’s performance. The statistical samples of the present study included 60 students (12.25±1.24) with forth and fifth grade that were selected as available subjects. After volleyball AAHPERD pre-test, subjects divided into 6 groups: Instructional self-talk (STI), motivational self-talk (STM), observational learning (OB), combination of Instructional self-talk and learning observation (STI-OB), combination of motivational self-talk and observational learning (STM-OB) and control group (CO) and during one day, they were participated in specific intervention that planed for each group. On the first day of intervention, subjects participated in acquisition phase and acquisition test was taken, after 48 hours' retention and transfer test was Held. In each phase of study self-efficacy was examined. The results of two-way ANOVA revealed that there was a significant difference among all training groups with control group (p≤0.05). These results support the use of cognitive factors, self-talk and observational learning and the combination of observational learning and Instructional self-talk as learning facilitator.
Mr Mohammad Bagher Ali, Dr Mehdi Shahbazi,
Volume 9, Issue 17 (9-2019)
Abstract
The movement imagery helps to learn various sports skills if persons have a reasonable imagery about how doing that skill and the command be carved on the brain. The main aim of the current study is to investigate the visual and content validity as well as the reliability of the Persian version of the Movement Imagery Questionnaire for Children MIQ-C. The main questionnaire was translated into the Persian by using the Translation-back Translation method. In order to standardize and validate the questionnaire, 10 elites in the field of the motor imagery and sports psychology, filled the questionnaires in order to determine the content validity ratio (CVR) and the content validity index (CVI). After a primitive study, the necessary modifications were applied.The questionnaire reliability was investigated by the test-retest reliability method and the Cronbach's alpha. Results indicated that the CVR and CVI are 0.62 and 0.79, respectively, which confirms the validity of the questionnaire. The reliability was confirmed by the internal consistency method which value was obtained higher than 0.7. For evaluating the ability of children in motor imaginary, a reliable method should be used.According to obtained results of the current work, the questionnaire benefits from a suitable reliability and validity.
Mr Seyed Esfandiar Moosavi, Dr Mahmood Goodarzi, Dr Mohammad Khabiri, Dr Ebrahim Alidoost Ghahfarrokhi,
Volume 9, Issue 17 (9-2019)
Abstract
The soccer players transfer market is a global market and there is a huge turnover in this market. The aim of this study is to Design of International Transfer Market for Iranian footballer. The current stude methodology was Exploratory mixed method. An questionnaire and interview was used to collect data. The results showed that six factors of players technical performance, non-technical factors players, government, the Football Association, the club and the player's agent was effective on Iranian international footballer transfers that presented by modeling. In the end, it can be said for active in International Transfer Market for soccer players, all of the stakeholders must fulfill of their role by do best of their duties that was in the form of statements extracted
Mehdi Shahbazi, Akbar Bohloul, Shaghayegh Modaberi,
Volume 10, Issue 19 (8-2020)
Abstract
Measuring instrument of interpersonal and intrapersonal motor coordination has designed and built to provide information about the human movements’ coordination in reach of researchers, trainers and therapists. To evaluate the validation of this instrument with using of Vienna two hands coordination test and present research instrument were asked 28 participants to do the task of two hands, two feet and interpersonal movement coordination. Pearson correlation test showed that the present research instrument has high validation in motor coordination of two hands in total time mean factor of joystick (r =0/88), knob (r =0/96) and in error percentage mean factor of joystick (r =0/89) and knob (r =0/87). Also the results of Cronbach’s alpha showed that present research instrument has appropriate reliability in motor coordination of two hands in total time mean factor of joystick (r =0/89) and knob (r =0/97) and in error time percentage mean factor of joystick (r =0/81) and knob (r =0/85). Also results indicated acceptable reliability in motor coordination of two feet in total time mean factor of pedals (r =0/90) and in error time percentage mean factor of pedals (r =0/83) and in interpersonal motor coordination in total time mean factor (r =0/91) and in error time percentage mean factor (r =0/80). Therefore using the present study instrument can be offered to sports science laboratories in all higher education institutions, federations and coaches, patients and rehabilitation centers, health and physiotherapy clinics.
Shahzad Tahmasebi Boroujeni, Masoumeh Karimnejat,
Volume 10, Issue 19 (8-2020)
Abstract
The aim of this study was to examine the effect of inherent and incremental ability theories feedback on dynamic balance in middle-aged women. 29 middle-aged women (age: 50-60) randomly assigned into two groups (inherent ability= 15 subjects, and incremental ability= 14 subjects). Both groups after the dynamic balance pretest (Timed Up and Go) received different instructions feedback. Immediate retention test at the end of sessions and delayed retention test was a day later. The transfer test conducted by cognitive and manual task. All tests performed on three stages and the score was recorded average each. The Mixed analysis of variance not significant difference between two feedbacks in dynamic balance (P= 0.249). In addition, analysis of variance with repeated measures showed that the dynamic balance in middle-aged women affected by both the inherent ability-based feedback (P= 0.0005) and incremental ability-based feedback (P=0.000003).