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Showing 11 results for Subject:
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).
Mohsen Vahdani, Reza Sheikh Yoosefi, Mehrdad Moharramzadeh, Misagh Hoseini Keshtan, Jamshid Jalilvand,
Volume 2, Issue 3 (8-2012)
Abstract
The present study examined the relationship between coach's leadership styles and group cohesion in the individual and group teams participating in the 10th sport domestic universiade of male students. 321 out of 1906 students selected as sample of this study. Athletes completed two instruments in this study Leadership Scale for Sport (LSS, Chelladurai & Saleh, 1980) and the Group Environment Questionnaire (GEQ, Carron, Widmeyer, & Brawley, 1985). The LSS contains 40 items that measures five dimensions of leadership styles and The GEQ with 18 items assess the two dimensions group cohesion. Cronbach's alpha coefficient was utilized to examine the internal reliability of LSS (r=0.85) and GEQ (r=0.72). Data were analyzed with one-sample kolmogrov-Smirnov, repeated measures ANOVA, Bonfferoni post hoc test,Pearson Correlation coefficient, and T-test(for independent groups), significance level of P&le0.05. Results showed coaches exhibited higher in training and instruction and lower in autocratic style among both interactive group teams and co-acting teams. Finally, there are no significant differences in task and social levels of interactive group teams and co-acting teams. Results showed coach’s styles of training and instruction, democratic, social support and positive feedback were all positively correlated to group cohesion and autocratic style negatively correlated to group cohesion.
Ebrahim Norouzi, Fatemehsadat Hosseini, Seyed Mohammad Kazem Vaezmosavi,
Volume 10, Issue 19 (8-2020)
Abstract
The aim of present study is to investigate effect of the quiet eye and quiet mind training on the dart throw learning. Thirty young males were selected with 24.53 mean aged through convenience sampling and randomly divided into quiet eye group, quiet mind group and control group. The study was conducted in four phases, including: Pre-test, training in quiet eye and quiet mind training, retention 1, under pressure test and retention 2. Descriptive statistics, Mixed ANOVA and post-hoc Bonferroni correction were used to data analyze. The results of the study showed that radial error of all groups dwindled as the result of training. Moreover, the radial error of quiet group was lower than other groups and that of quiet mind group was lower control group. Likewise, quiet eye and mind groups were capable of maintaing their performance in the under-pressure test rather than control group. The results of this study suggest that quiet mind and quiet eye training would be beneficial as a tool to prime impilicit learning conditions.
Leily Alizadeh, Mohammad Taghi Aghdasi, Vali Alizadeh,
Volume 11, Issue 21 (7-2021)
Abstract
The aim of this study was to investigate the psychometric properties of Persian version of exercise dependence scale, prevalence of exercise dependence and some related factors in male and female athletes clubs of Urmia. Subjects of this research were 325 athletes in the sample (206 males; 119 females, mean age 28.06±8 years) various team and individual sports (team sports N= 195, individual sports N=130) in the form of voluntary and available attend in this study. Hausenblas and Downs (2002) exercise dependence scale 21 with seven subscale was the instruments of the study. Exploratory and confirmatory factor analysis was used to determine validity of questionnaire, and Cronbach's alpha coefficient was used to determine internal consistency. The results showed that the validity of exercise dependence scale 21 is desirable. Also the results showed that in this study the prevalence of exercise dependence between men and women population is not very different from each other and exercise dependence in individual sports is twice to team sports. Since exercise dependence may exist among a wide range of athletes, therefore, in order to address the adverse effects of this factor, it is necessary to examine the underlying causes and trying to modify it.
Mr Mehrzad Kharestani, Dr Hasan Mohamadzade,
Volume 13, Issue 25 (9-2023)
Abstract
The purpose of this study was to investigate and compare the effect of mental imagery, observational learning, combined (imagery and observational learning) and physical training on mental representation and performance of novice golfers. To this end, 60 students(age:22.8±2.11) were randomly assigned in four groups: 1) mental imagery, 2) observational learning 3) combined (imagery + observational learning) and 4) physical training. After the pre-test, the participants in each group performed the golf putting for 3 consecutive days (60 attempts per day) and the post-test was performed on the third day. Two days after the post-test, a retention test was taken. Performance accuracy and structure of mental representation of participants were measured as dependent variables. Results showed that in the golf putting variable, the physical training group was better than other groups. Also, the performance of the combined group was better than the imagery and observational learning group. In addition, in the mental representation variable, the combined group had a more structured and accurate mental representation than than other groups. In addition, the imagery group had a better mental representation than the observational learning and physical training group. Overall, The result of this study show that physical training compared to other methods increases the accuracy of golf putting. Also combined imagery and observational learning training, has a greater impact than other methods used in this study.
Sajad Moemeni, Alal Dehghanizade,
Volume 13, Issue 26 (12-2023)
Abstract
The aim of this study was to investigate relationship of physical activity during the COVID-19 Pandemic with life expectancy and life satisfaction of elderly. Methodology was descriptive-correlational which was done cross-sectionally in the year 2021. Statistical population included all of elderly people aged ≥60 years in Hamadan city. The number of 391 people participated who were selected from public places in Hamadan city by using a convenience sampling method. Data were collected using International Physical Activity Questionnaire, Life Expectancy, and Life Satisfaction. Data were analyzed by SPSS 26 and Smart PLS 3 software and structural equation method. The average age of the participants was 67.73±7.18 years. Mean and standard deviation of life satisfaction and life expectancy were 18.18±6.56, 19.98±6.85, respectively. 54.2% of people had low level of physical activity, 37.6% Moderate level of physical activity, and 8.2% high levels of physical activity. Physical activity had a positive and significant effect on life satisfaction (p<0.01) and life expectancy (p<0.01). According to the results, if the elderly participate in the physical activities, the results will be increasing of life satisfaction and life expectancy During the COVID-19 Pandemic.
Mina Keshavarz, Sepideh Jalali Aghdam, Hasan Mohammadzade,
Volume 14, Issue 27 (8-2024)
Abstract
The aim of this study was to investigate the effect of a Pilates exercise period on public health and anxiety in young women during the coronavirus quarantine. This research was a semi-experimental with pre-test and post-test design and control group. For this purpose, 50 young women with a mean age of 25± 2 years were randomly selected and divided into experimental and control groups by convenience sampling method from Urmia. The experimental group practiced Pilates online at home for 3 sessions, 60 minutes each week for 8 weeks and the control group did not receive any intervention during this period. Dependent variables were measured using the Public Health Questionnaire and Coronavirus Anxiety Scale. The results of Mixed ANOVA showed that the scores of all components of public health and anxiety of women in the experimental group were significantly better than the control group, which indicates the effectiveness of Pilates exercises on the relevant variables during this quarantine period. Therefore, based on the findings of this study, it can be concluded that Pilates improves public health and anxiety of young women, and have a regular exercise program is a key strategy to maintain public health during quarantine due to coronavirus outbreak.
Hanieh Ghasemian Moghadam, Mahdi Sohrabi,
Volume 14, Issue 27 (8-2024)
Abstract
This study aimed to investigate the effectiveness of basic taekwondo exercises on the executive functions of children with a learning disorder. For this purpose, 20 boys aged 10 to 12 years with learning disorder in Mashhad were selected and randomly assigned to exercise and control groups. The exercise group practiced Taekwondo for 12 sessions, each session lasting 50 minutes, repeating three days a week. The control group also engaged in their normal daily activities during this period. Changes in subjects' executive functions were measured before and after the exercise period by the N-back and the Tower of London tests. Analysis of variance with repeated measures was used for statistical analysis. The results showed that basic taekwondo exercises improve executive functions in the exercise group; All these changes were significant compared to the control group (p<0/05). Therefore, based on the results of the present study, it can be concluded that basic taekwondo exercises help to improve the executive functions of children with learning disorder by affecting brain areas related to executive functions.
Ghazal Nojan, Hasan Mohamadzadeh, Jalal Dehghanizadeh,
Volume 14, Issue 28 (12-2024)
Abstract
ABSTRACT
In recent years, many efforts have been made to develop new methods of training sports skills that, in addition to teaching game techniques and tactics, further challenge the cognition and emotion of learners. The aim of the present study was to to compare of traditional and sport-education (SE) methods on metacognition and metaemotion in tennis skills. The present study was a quasi-experimental study with a pre- post test design. The subjects included 24 adolescent girls from Urmia city (age: 16.54±1.36 years) who were non-randomly divided into: sport-education and traditional training groups. The training consisted of 14 sessions over 4 weeks (3 sessions per week). The research instruments were Wells' Metacognitive Questionnaire and Mittmannsgruber's Metaemotional Questionnaire. The was a significant difference between the two traditional and sport-education methods groups in increasing meta-cognition (p=0.004), positive meta-emotion (p=0.007), and negative met-aemotion (p=0.015). In the sport-education methods, meta-cognition (p=0.001) and positive meta-emotion (p=0.001) significantly increased, and negative metaemotion (p=0.001) improved. but the changes in these indicators were not significant in the traditional group (P>0.05). So, beginners can benefit from the physical benefits and improve the meta-cognitive and meta-emotional knowledge of this type of training method by performing sports activities using the sport-education methods.
Mehdi Babapuor, Jalal Dehghanizade,
Volume 15, Issue 29 (4-2025)
Abstract
Introduction: Motor learning has been measured differently based on two essential factors of OPTIMAL theory (autonomy support and increased expectations). Giving choice has been widely used in this field, but it has not been fully investigated in the learning of throwing skills according to these two factors.
Purpose: The present study aimed to investigate the benefits of giving choices using the order of practice choice on learning the putting accuracy skills and the psychological components of perceived autonomy and self-efficacy beliefs.
Method: In this quasi-experimental study, 24 novice participants with a mean age of 24.87 ± 3.26 were randomly assigned to experimental (n=12) and yoked (n=12) groups. Immediately after a 10-trial pretest, participants practiced three new tasks (visual cues, auditory cues, chest bar) to putt a golf ball into the center hole in six blocks. Then, the learning was measured during a 24-hour follow-up period under conditions completely similar to the pretest (10 trials).
Findings: The study assessed participants' skill accuracy, perceived autonomy, and self-efficacy across all three experimental phases. Mixed-design analysis of variance revealed that the order in which practice was structured significantly influenced golf putting accuracy, self-efficacy, and perceived autonomy (p ≥ 0.05).
Conclusion: The possibility of task-related small choices enhances perceived autonomy self-efficacy and, which leads to improved motor learning. Therefore, these findings are consistent with optimal theory.
Mrs Hanieh Ghasemian Moghadam, Dr Hasan Mohamadzadeh,
Volume 100, Issue 100 (10-2020)
Abstract
The purpose of this study was to investigate the effect of sensory-motor exercises with a game sense approach on the executive and motor control of children with learning disorder. For this purpose, 36 female children aged 7-9 years were randomly selected by referring to learning disorder centers in Mashhad and divided into two exercise groups (sensory-motor group with a game sense approach, sensory-motor group with a goal-oriented approach) and a control group. The exercise groups participated in the exercises in the form of two 60-minute sessions per week for a period of 8 weeks. During this period, the control group performed its normal activities. The changes in inhibition and gross motor skills of the subjects before and after the exercise period were measured by Stroop and Burininks-Oseretsky tests, respectively. The results of the Mixed analysis of variance analysis test showed that sensory-motor exercises with the game sense approach improved executive and motor control in the game sense group compared to the control group (p<0.05). Therefore, sensory-motor exercises with a game sense approach can help improve the executive and motor control of these children.
