نشریه رشد و یادگیری حرکتی - ورزشی
پیاپی 21 (پاییز 1394)

The aim of this research was to determine the effect of selective exercise training on reducing the symptom of hypotonia and changing body composition in Down syndrome adults. The research was performed in Nemoneh Disability Rehabilitation Centre of Tehran. 24 men with Down syndrome (mean age 26.185± 3.933) were randomly assigned to either a control (n=11) or an experimental group (n=13). The Experimental groups followed selective exercise training for 12-weeks, three times a week. Result of this research showed that after 12 weeks selective exercise training, body fat percent had a significant reduction (P<0.05) and soft lean mass and muscle performance (in 5 from 6 tests for assess muscle strength, endurance and power) had a significant increase (P<0.05). The results of this study showed that this type of exercise training significantly improves the health of Down syndrome adults by reduce in extra body fat percent and increase in muscles tissue and performance and in this way; it will reduce the symptoms of Down syndrome for benefit of improved physical health.

The purpose of this study was to determine the relationship between perceived motivational climate and self – determination Judokas in Iranian pro league, which was carried out by a descriptive field method. The statistical population of this study comprised the entire Judokas of pro league in Iran. Statistical sample set of 126 Judokas of pro league in Iran. In order to collect data, demographic questionnaire, perceived motivational climate in sport questionnaire – 2 (PMCSQ) and sport motivation scale (SMS), were used. In order to analyze of data dscriptive mthods were used and also on level of P<0.05 in order to determine the relationship a multiple variable regression was used. Research results showed that there is a significant relationship between perceived motivational climate and self – determination (P<0.05). Also, the findings showed that there is a significant relationship between performance climate and eccentric and intrinsic motivation (P<0.05) and there is signigicant relationship between Mastery climate and intrinsic motivation (P<0.05). but, there was no relationship between motivational climate and amotivation on the other (P>0.05). generally between perceived motivational climate is important and predicitve factor in athlete's self – determination.

The main purpose of the present study was to investigate the effect of different combinations of music and rhythmic movements on behavioral problems of children with mild mental retardation. A total of 40 children with mild mental retardation were randomly divided into 4 variations of practice including: rhythmic movement with major scale music, rhythmic movement with minor scale music, rhythmic movement with no music, and no rhythmic movement-no music (control group). Rutter inventory (Parent version) was used to evaluate behavioral problems. Pretest was taken before the intervention and post-test was taken after 12 weeks of practice (36 sessions). For data analysis, one-way analysis of variance and Tuki follow up tests were used. Results showed that behavioral problems of rhythmic movement with major scale music group were significantly decreased. It was also shown that the rhythmic movement with minor scale music and rhythmic movement with no music showed no significant decrease on behavioral problems of mentally retarded children. No considerable change was found in behavioral problems of the participants of the control group.

The aim of this study was to determine the effects of external attention (EA) and internal attention (IA) with & without motivational music training on dynamic balance task. The method was quasi-experimental and the sample involved 60 athletic maile who were volunteers to participate in this study. After pre-test, Subjects were divided into 5 groups of 12 members randomly. Groups were: IA with music, EA with music, IA without music, EA without music and Control. This research conduct with 3 phase. First, Pre-test. In 2nd, Subjects were doing exercise protocol in 3 consecutive days in phase for groups with music in addition attentional strategies, motivational music play by CD. 3nd was post –test in According to of research design, if music had could significant effect on performance after variable using, then in 4th phase, data can be Analyzed. ANOVA test do not show significant difference among groups. In other words, (EA) and (IA), strategies with / without music cannot affect on balance ability. The significance level in this research was α= 0.05.

The purpose of this study was to evaluate the effects of progressive motor program on improving motor skills in children with autism. In this quasi-experimental study, 16 subjects (2 girls, 14 boys) who had been diagnosed with autism in the cities of Semnan and Yazd were selected. After they relatively were matched based on age, sex, grade, and the degree and severity of autism, they were divided into the experimental (8) and control (8) groups. The Test of Gross Motor Development-Ed2 were used to assess fundamental motor skills. After pretest by TGMD-2, Progressive motor program was conducted for 30 sessions in experimental group. After 15 and 30 sessions, experimental and control groups participated in the mid and post-tests. Retention test was performed 30 days after the end of the 30th session. Data were analyzed by Variance Analyze of Repeated Measures. The results showed that progressive motor program, with the significance level of P <0/05, had a greater impact on the development of locomotor, object control and gross skills than the control group.

The purpose of the present study was to examine the effects of self – control modeling, that is presenting moded to learner whenever they asked for it, on learning a timing task.Twenty four right handed subjects (12 males, 12 females, aged 19-20) voluntarily participated in the study and were assigned randomly to two groups of self – control and yoked.The task was pressing the keys number 1, 4, 5 and 8 on a sequential timing apparatus while keeping certain absolute timig. People in the self – control group received the model whenever they requested it, while subjects in the other group were yoked with self – control group. The experiment consisted of acquistion, retention and transfer phases and absolute timing error was used as dependent variable. Results of factorial ANOVA in acqistion phase showed that even through there were a significant decrement in two groups on absolute timing error (P<0.05), but there were no significant decrement in two groups on absolute timing error (P<0.05), but there were no significant difference between two groups in this changes (P>0.05).Results of retention test failed to show any significant difference between two groups (P>0.05). but in transfer test self – control group showed significantly less error than yoked (P<0.05). the results showed that benefitcial effects of self – control technique anc well generalized to modeling domain and make practice conditions more accordant with informational needs of learners.

The purpose of the present study was to investigate the effect of variability of attentional focus distance by self-talk on the learning of table tennis forehand in. After pretest, the participants performed 180 forehand strokes during 6 sessions with repeating the words “slightly rotation” in the internal focus group “slightly open” in the near external focus group, “over the net” in the far external focus group, and each of the words “slightly rotation, slightly open, and over the net” respectively in each 2 sessions in the increasing distance of attentional focus group. Control group performed without self-talk during acquisition phase. Retention test was performed 48 hours after acquisition test in the same situation without self-talk, and after break, transfer test was done by changing the direction of target (parallel forehand) without self-talk. The accuracy and the pattern of forehand strokes were measured by a 5 point-scale (Liao and Masters, 2001) and researcher-made scale, respectively). According to the results of 2-factor mixed ANOVA, acquisition, retention, and transfer of forehand accuracy in internal focus of attention group were significantly lower than other groups (p<0.05).Furthermore, the effect of increasing attentional focus distance on acquisition of forehand pattern was significant. The effect of near external attentional focus on retention of pattern was significant. But transfer of stroke pattern in control group was significantly more than far external focus group (p<0.05). Thus, it is recommended to use self-talk by increasing attentional focus and near external attentional focus and not to use internal focus of attention to instruct forehand to novice adolescents.

The self-talk is one of psychological interventions that can be effective on improving and success in the motor performance and sport performance. So, the aim of the present study was to investigation effectiveness the motivational self-talkon secondary task performance (discrimination reaction time). 30 subjects have participated of the 160 students studying at the undergraduate from faculty of physical education and sport science in University of Tehran. They were divided randomly into two control and experimental groups. The intervention was conducted in two sessions per day and each session lasted one minute. The first primary task for the intervention group was walking on the treadmill with a slow speed whereas secondary task (discrimination reaction time), was performed in 10 attempts. The process was performed for the second order in the same manner with the difference that the experimental group performed motivational self-talk 15 seconds before the secondary task performance.Control group was performed test without intervention.The result of paired samples t-test showed that motivational self-talk in experimental group leads to a significant decrement in discrimination reaction time (P=0.001). Also, the result of Mann-Whitney U showed that reaction time in the experimental group decrease than control group significantly (P=0.002).