مجله روانشناسی ورزش
سال هفتم شماره 1 (بهار و تابستان 1394)

The purpose was to survey the effect of practice order with dominant and non-dominant hand on acquisition, retention and transfer of basketball dribbling skill of the male students at Ferdowsi University. The subjects were 20 students of General Physical Education (19-24) that did not have any experiences in basketball and their dominant hand was right. They randomly selected and equally assigned to two groups. Subjects practiced in the program for 4 weeks, 2 times a week and 45 minutes per session. Group A practiced with their dominant right hand for the first four sessions and then switched to their left hand for the second four sessions. Group B practiced in vice versa manner. The subjects were assessed by SlalomDribble-Test in pre test Results showed that there was no significant difference between two groups in acquisition of dribbling Skill (p=0.053). Movement time has been significantly reduced from pre-test to posttest (p=0.0001).Results showed better performance of the right hand than the left (p=0.042). Both groups had shorter dribbling time with the right hand than the left in post-test and retention test. There was no significant difference between two groups in transfer task (p = 0.16). Results indicate that practice with dominant and non-dominant limbs in the initial motor learning seems to be important to improve performance of both limbs and to strengthen bilateral competence of the learners.

This research was carried out to monitor effects of different practice schedules on acquisition, retention and transfer parameter timing and challenging current hypothesis regarding contextual interference effect about parameter learning in lab assignment. This research was quasi-experimental and Statistical group was right-hand boys in Kerman University. To do this test, 80 men participants (M=21.04 ±1.52) divided randomly in 4 groups; blocked, random and two combined practice group (blocked-random and randomblocked group). This test included performance of tasks with constant generalized motor program and variable timing parameter. The participants took apart after pre-test phase and accomplishing of 108 trial according practice group in retention and transfer tests. When the different test performed amount of absolute timing error (measure of accuracy and proficiency of parameterization) was calculated. Repeated measures Anova, followed tukey test and Analysis of variance used for analysing data (P≤0/05). Although result don’t show significant difference between practice schedules in acquisition phase, but in transfer and retention test despite of priority of combined practice groups relatively, amounts of absolute timing wasn’t different between practice groups. This findings show that changing parameter has not made obvious contextual interference effect and From Magil & Hall's viewpoint it supports lack of significant difference in assignment with similar motor program.

In this paper we are studying the effect of selected physical activity plan on growth of motor skills in children between the age of 6 to 8 who are suffering of Hight Functioning Autisum(HFA). In this semi- experimental study, 30 children (8/4±./7 age of boy) suffering from HFA have been selected from special schools of Shiraz city randomly and put in two groups of control and experimental according to pretest. The Bruininks-Oseretsky test was carried out for HFA children. Selected movement plan (appropriate jump-roping plan) performed for these children in 18 sessions. K-S test to determine the distribution of normal data and Levin & covariance analysis test to compare averages were conducted. The results showed that selected training plan has significant effect on growth of motor skills in children with HFA. But in some details of these criteria including; response speed skill, visual-motor control and upper limb speed & dexterity skills, significant effect was not seen. According to obtained results we can say that selected training plan (jump roping) is likely to improve fundamental skills of HFA children (P</.05).

Hardiness personality trait moderates the competitive stress and it is one of the most important characteristics of successful athletes. The aim of this research was to determine the relationship between psychological hardiness and sport performance in basketball‬players‬in‬the‬Iran’s‬Premier‬League.‬ The study is correlation and survey one. The study population comprised 294 basketball players (108 female and 116 male) who have participated in the tournament. Research tools included the short hardiness scale (SHS: Bartone, 1995) and standard situation efficacy parameters of basketball international Federation. Pearson's correlation and stepwise regression analysis using SPSS software were utilized to analysis the data. Results showed a significant positive correlation between psychological hardiness and sports performance. Among all components of hardiness, Challenge component can predict significant sport performance and explain 3.9% of the variance in sport performance. Results showed that the hardy athletes have better performance. It seems evaluation and improve hardiness, can play an applied role in intervention programs with the aim of increasing performance.

The purpose of this study was to determine the effect of different doses of nicotine on information processing speed in athletes and non-athletes. Seventy-two male college students (36 athlete, 36 non-athletes; range age=18 to 24) were recruited from Kharazmi university to participate in the study. Their level of physical activity participation determined via a General Information Questionnaire. Each group of 36 male was randomly divided into three subgroups of 12 (4, 2 and 0 mg nicotine gum). This study was an experimental and applied. The data were collected using a choice reaction time vienna system. In addition to descriptive statistics, Univariate Analysis of Variance was‬used‬(α=0.05). The results show that there was no significant differences between choice reaction time means in terms of groups (P=0.353) or type of intervention (P=0.464), but only the interaction of factors (group*intervention) in both athletes and nonathletes was significant (P=0.050). our results indicate that there were no differences between information processing speed of athletes and non-athletes before and after different doses of nicotine administration. It seems that variables such as psychohogical state of subjects during the test, fatigue and especially varied CNS responses to different doses of nicotine may leads to such different findings.

The aim of the present study was to investigate the effect of local indigenous games on executivecognitive functions of children with attention deficit/hyperactivity disorder (ADHD). 30 children with attention deficits/hyperactivity disorder (combined type) were selected through purposive available sampling, and were randomly assigned into control and experimental groups.The Experimental group participated in the local indigenous games for 12 weeks; while the control group continued their daily activities during the training period. The instruments used in this study were Conners' questionnaire, Wechsler intelligence test, and an apparatus to measure executive-cognitive functions. Both groups participated in a pretest and posttest. the data were analyzed using covariance analysis. The results showed that local indigenous games intervention is effective for improving executive- cognitive functions (reaction time, Selective attention, response inhibition, vigilance, impulsivity and attention shifting). According to the findings of the study, it can be concluded that local indigenous games can be used for improving executive-cognitive functions in children with attention deficit/hyperactivity disorder

Introduction The psychological factors plays a decisive role in the success of elite athletes at the highest levels competition, where fitness of athletes reaches to the highest possible level, Purpose of this study is to investigate the relationship between mental factors and physical fitness of young football players Methodology For this purpose, 21 employed in Youth League player with an average age of 56/18 years participated in the study. In order to assess the mental toughness and Mindfulness Respectively used Ahvaz mindfulness questionnaire and Baer et al questionnaire. Also field test of bulk, 36 meter, two-way jump, bench press and leg press test was used to measure physiological characteristics. Results The results of the Pearson correlation coefficient showed that there is not significant relationship between the total score of Mindfulness and physiological characteristics. But there was significant relationship between mental toughness and some subscales mindfulness and physiological profile in the young football players. Discussion and Conclusions Despite football players must have trained a certain level of mental skills, and develop this skills. But it seems different positions of game requires Appropriate mental skills for specific posts