مجله روانشناسی ورزش
سال پنجم شماره 2 (پاییز و زمستان 1399)

A mild cognitive impairment is thought to be a condition of premature but abnormal cognitive impairment. The purpose of this study was to investigate the effect of yoga exercise on the cognitive function of Middle - aged women with mild cognitive impairment.

The present study was semi-experimental using a pre-test post-test design with two experimental and control groups. The participants were 41 middle-aged women who were divided into experimental and control groups according to the score of Montreal's cognitive assessment. The experimental group performed yoga exercise for 10 weeks (three sessions per week), each training session was 60 minutes. The pre-post test data obtained through the Montreal cognitive assessment were analyzed using covariance analysis test.

The findings showed that the experimental group had a significant increase in executive function, concentration, work memory and total cognitive function from pre-test to post-test (P≤0.05).

The results of this study indicated that middle-age women with mild cognitive impairment can improve cognitive performance by participating in yoga exercise.

The aim of the current study is to investigate the effect of active and passive imagery on the learning of the dart throwing skills in 7-12 years old student.

So, in order to sampling, the motor imagery questionnaires for children were distributed among the statistical society (7-12 years old children) and 30 girls and 30 boys, whose imagery ability was similar, were chosen. After performing the pretest stage, samples were categorized into two groups: active homogenous group and passive homogenous group (2 groups of boys and two of girls). In order to determine differences between two mentioned groups, ANCOVA analysis test was used.

The first to sixth acquisition, learning and transition tests indicated that there are no significant differences in groups that are based on the interaction between sex and group. So, it can be inferred that the active and passive imagery did not influence the groups.

Obtained results of acquisition, learning and transition stages showed that intellectual practices should be considered without regarding its type.

Regular physical activity is beneficial for the physical, mental, and social aspects of adolescents' health. Valid and reliable tools are needed to measure adolescents' commitment to physical activity. Therefore, the purpose of this study was to determine the validity and reliability of Persian version of the Commitment to Physical Activity Scale for Adolescents.

The statistical sample consisted of female students of Arak city who were selected by available sampling method. Participants completed the demographic characteristics questionnaire and the Commitment to Physical Activity Scale for Adolescents (Robbins et al., 2016). Data were analyzed using confirmatory factor analysis and Cronbach's alpha.

The results showed that the goodness of fit index and comparative fit index were higher than (0.90). Also, the results showed that Cronbach's alpha coefficient for Commitment to Physical Activity Scale and its dimensions was above 0.7 (the value of acceptable index).

In general, the results showed that the Persian version of the the Commitment to Physical Activity Scale in Iranian adolescents had acceptable validity and reliability. Therefore, this questionnaire can be used for educational and research purposes.

The purpose of this study was to investigate the effect of manipulation of vision and proprioceptive senses in different ages of childhood on the transition time of the relative phase in bimanual coordination task. 60 children, right-handed, 7-12 aged, with normal vision participated in this study. Participants were seated on adjustable chairs and producing coordination movements with relative phase of 180 degrees and started at 1 Hz frequency that was increased by 0.50 Hz steps in every 5 seconds up to a final movement frequency of 5 Hz. Participants produced the relative phase pattern under different sensory conditions such as with visual and proprioception sense, no vision with proprioception sense, with vision and disorder in biased proprioception. The results revealed that the difference between children was significant in the absence of manipulation of the sense of vision and proprioception. But the interaction between age and vision manipulation wasn't significant in the transition of the relative phase of bimanual coordination. Also, the interaction between ages with proprioception scenes manipulation in the transition of the relative phase of bimanual coordination wasn't significant. .However, manipulation of proprioception scenes and vision scenes without the attention of aged difference were significant. The finding of this study supported the dynamic system based on the self-organization of the system with inducing the velocity parameter that phase transit the out phase to in phase..

The purpose of this study was to compare the effectiveness of two methods of athlete-centered and coach- centered practice on creativity and motivation in gymnast girls.

Two-group quasi-experimental design with pre-test and post-test was used. The statistical population consisted of 10 to 14-year-old gymnast girls in Tehran and the sample consisted of 40 subjects (20 athlete-centered group and 20 coach-centered group) who were randomly assigned to the groups. The creativity test (Abedi, 1993) and sport motivation questionnaire (Gill, 1983) were used to measure the variables. After pre-test, the groups performed athlete-coaching and coaching protocols for two and a half hour sessions individually for two months and two days a week. Data were analyzed using multivariate analysis of covariance (MANCOVA) and SPSS software.

The results showed that there was a statistically significant difference between the two groups in the posttest stage in the mean of creativity and sport motivation variables and in the athletic practice group there was a greater increase in creativity and motivation compared to the coached group.

Due to the greater effectiveness of athlete-centered exercises in gymnastics, it is suggested to pay more attention to increase athletic creativity and motivation in gymnast girls.

In team sports, team efficacy is an important factor in success, Therefore, the purpose of this study is to investigate the relationship between team efficacy and emotional intelligence among normal and disabled athletes.

This is a comparative research and the particiants includes healthy and disabled athletes of basketball, volleyball, football and futsal teams of Tabriz. 41 disabled athletes and 43 healthy athletes were selected as samples. Measurments has done by Schutte Self-Report Emotional Intelligence Test (SSEIT) (Salovey and Mayer, 1990) and Collective Efficacy Questionnaire for Sports (CEQS) was used to assess perceived team collective efficacy. Data were analyzed by SPSS software using ColmogrophSmirnov, multivariate analyze of variance (MANOVA) significant level of p<0/05.

According to the results there is a significant difference between total emotional intelligence and total collective efficacy among normal and disable athletes (F(2,81)= 3.29, p<0.042). Further analysis showed significant differences only in factor of regulating self-relevant emotions from emotional intelligence between healthy and disabled athletes (F(1,82)= 8.12, p<0.006). However, according score of mean, disable athletes have score of mean more than healthy athletes. As well as, according to the multiple regression results emotional intelligence can predict 13% of disable athletes and 57% of collective efficacy validity.

Emotional intelligence has more ability of predict the collective efficacy variability in healthy athletes compared with devotee and disabled athletes. Results suggest that coach for healthy athletes must use mental training for management of emotion.

Communication skills and social interactions are important in the lives of children with autism. The aim of this study was to investigate the effect of etherplo on improving communication skills and social interactions in children with autism.

The research method was quasi-experimental and follow-up with two experimental and control groups. For this purpose, using the sampling method available among children in Tabriz, and were divided into experimental and control groups. The experimental group then performed water polo training and games for 6 weeks. In this study, communication skills and social interaction questionnaires were used as data collection tools.

Water polo practice reduced stereotyped behaviors and increased social interaction and communication interaction of autistic children significantly (P = 0.01) in the experimental group, but in the control group stereotyped behaviors and social interaction significantly decreased (P = 0.01). ), had. Also, there was no significant decrease or increase in communication skills of autistic children in the control group.

According to the results of the study, it can be stated that water polo has an effect on improving the social interactions of autistic children and these interventions can be used to improve communication skills of these children.