Motor Development and Learning
moslem tarajian; ali heyrani
Abstract
Introduction. In this regard, old age was recognized as one of the important stages of human development, which was usually accompanied by in all dimensions of growth. Therefore, the aim of the present study was to investigate the effects of fall-proof and multi-component exercises on balance performance, ...
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Introduction. In this regard, old age was recognized as one of the important stages of human development, which was usually accompanied by in all dimensions of growth. Therefore, the aim of the present study was to investigate the effects of fall-proof and multi-component exercises on balance performance, cognitive functions, and reaction time in the elderly.
Research Method: The present study was a quasi-experimental study with a pre-test, post-test, and one-month follow-up design with a control group. In this study, the sample size was determined based on the expected rate of progress, previous studies, and GPower software. Forty-five elderly men aged 65 to 75 years were randomly selected and divided into three equal groups: fall-proof training group, multi-component training group, and control group. Data collection was performed using the Brief Cognitive Status Test, Balance Performance Scale, and Reaction Time Test. For data analysis, repeated measures analysis of variance was used to examine the differences between groups in the post-test and follow-up test. All statistical operations were performed using the updated version of SPSS software at a significance level of 0.05.
Findings: The results showed that fall-proof and multi-component training had a significant effect on balance performance, cognitive functions, and reaction time. These effects led to a significant improvement in the participants' scores from pre-test to post-test, and the positive changes were maintained in the follow-up test.
Conclusion: Therefore, it was recommended that these exercises be used as a suitable rehabilitation method for the elderly, especially those who have suffered a stroke.
Motor Development and Learning
heidar hanoon; ali heyrani; ehsan amiri
Abstract
Introduction: This research investigates the effects of transcranial direct current stimulation, in one or more sessions, on the executive functions of novice tennis players.
Methods: 27 novice male tennis players (mean age 20.29 ± 0.29) were randomly and double-blindly divided into three groups: experimental ...
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Introduction: This research investigates the effects of transcranial direct current stimulation, in one or more sessions, on the executive functions of novice tennis players.
Methods: 27 novice male tennis players (mean age 20.29 ± 0.29) were randomly and double-blindly divided into three groups: experimental group 1 (5 sessions of anodal stimulation), experimental group 2 (1 session of anodal stimulation), and control group (no anodal stimulation). Stimulation was applied for 20 minutes at an intensity of 2 mA in the M1 and DLPFC regions. Indicators of selective attention, working memory, response inhibition and cognitive flexibility were measured before (pre-test), after 5 sessions (post-test) and 2 weeks after the intervention (retention). For statistical analysis, a repeated measures ANOVA test (3x3 factorial design) was used.
Results: The results showed that there was no significant difference between the intervention groups in the indicators of selective attention and working memory in any of the evaluation stages (P> 0.05). However, experimental group 1 showed a more significant improvement in response inhibition (p= 0.018) and cognitive flexibility (p= 0.14) indices in the retention test compared to the control group, while no significant difference was observed between the other groups (P> 0.05). Both experimental groups showed significant improvement in all indicators in the post-test and retention. Notably, experimental group 1 showed a significant improvement in all indicators from post-test to retention (P<0.05).
Conclusion: In conclusion, both single-session and multi-session tDCS enhance executive functions in novice tennis players, with repeated stimulation yielding more durable cognitive benefits.
Astireh Hasani; Ali Heirani; Ayoob Sabaghi
Abstract
Introduction: Lifestyle changes and the increasing trend of children's developmental disorders, especially in the field of social interactions have made it necessary to conduct research in this field of study. So the present study aimed to investigate the action-specific perception in the different focus ...
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Introduction: Lifestyle changes and the increasing trend of children's developmental disorders, especially in the field of social interactions have made it necessary to conduct research in this field of study. So the present study aimed to investigate the action-specific perception in the different focus of attention conditions in autistic children.Methods: In a quasi-experimental study, 45 people with high-functioning autism spectrum disorder were identified and randomly divided into three Internal Attention, External Attention, and Control groups (15 people in each group). The participant's task was to throw darts and estimate the target size. After the pre-test, the groups performed the dart-throwing task in 5 blocks of 10 trials. The focus of attention instructions - specific to the experimental groups- were given before each trial, and subjects were asked to estimate the target size before performing the tasks in each block. For this, participants used a circle shape in Microsoft PowerPoint to draw a circle the same size as the darts' target. The next day, retention and transfer tests were performed.Results: The results showed that the Internal Attention group was better than the External Attention and Control groups both in dart-throwing performance in acquisition, retention, and transfer stages and in action-specific perception (P≤0.05).Conclusion: In general, the findings showed that in children with autism spectrum disorder, internal attention leads to better performance and learning than external attention. Therefore coaches and physical education teachers who work with these children should emphasize on benefits of internal focus of attention when designing training sessions.
Elahe Siavashi; Ali Heyrani; Ehsan Zareian
Abstract
The aim of this study was to investigate The effect of skill level matching in cooperative dyadic interaction on learning of forehand table tennis skills in adolescent girls. Participants were selected convenience sampling form from 24 junior high school girls in Nahavand city and were randomly divided ...
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The aim of this study was to investigate The effect of skill level matching in cooperative dyadic interaction on learning of forehand table tennis skills in adolescent girls. Participants were selected convenience sampling form from 24 junior high school girls in Nahavand city and were randomly divided into two groups of Novice-Novice and Novice-Expert. Both groups performed five sessions of participatory dyad training with their respective arrangement (novice- novice, novice- expert) that each session consisted of 20 sets of 3-minute with a 1-minute rest time between sets. Using table tennis forehand shot accuracy test, the motor performance was measured in the pre-test, post-test, retention and transfer stages (Merely forehand performance with increasing throwing speed of ball thrower). The results showed that both Novice-Novice and Novice-Expert groups showed significant progress learning of forehand table tennis skills; Also, the Novice-Expert performed better in the post-test, retention and transfer stages than the Novice-Novice group. Therefore, Novice-Expert arrangement than Novice-Novice during participatory dyad training facilitates learning forehand table tennis skill.It revealed that novice-expert arrangement is more efficient in comparison to novice-novice arrangement as the former enjoys the benefits of using the optimal observational pattern (seeing a expert person), and offeres various challenges and strategies for the novice partner as a result of exercising with an expert partner. To conclude, novice-expert dyad practice promotes the speed of learning among table tennis learners.
Zahra Soori; Ali Heyrani; Rahman Souri
Abstract
The role of the training is to improve the symptoms of Parkinson's disease. The purpose of this study was to compare the effects of exercise intensity on learning, spatial memory and anxiety behaviors in rat with impair . In this study, 24 male rats were randomly divided into 5 healthy control groups, ...
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The role of the training is to improve the symptoms of Parkinson's disease. The purpose of this study was to compare the effects of exercise intensity on learning, spatial memory and anxiety behaviors in rat with impair . In this study, 24 male rats were randomly divided into 5 healthy control groups, Parkinson's control, Parkinson's (low, moderate, and high intensity) exercises. The creation of the Parkinson's Model was injected intra-brain-6-hydroxydopamine. To assess learning and spatial memory, Morris water maze test and Counting Counting were used as an indicator of anxiety behavior. Data analysis was done by one-way ANOVA at a significant level (P <0.05). Injection of 6-hydroxydopamine increased the duration of the platform and destroyed spatial memory (P <0.05), Although all three types of space memory training decreased significantly in Parkinson's rats significantly (P <0.05), high intensity exercise showed the greatest effect on learning and spatial memory (0.05). (P <0.05), there was a significant difference between the high and low intensity training groups (P <0.05). This difference was not significant between the moderate and low intensity groups in most of the variables (P <0.05). Different intensities, especially high intensity, improve the parameters of spatial memory
Zahra Soori; Ali Heirani; Frozan Rafie; Zahra Falahi
Abstract
The aim of this study was to evaluate the effect of perceptual-motor training on working memory in children with hearing disorders. For this purpose, 24 student with hearing loss (9-12 years old) in Kermanshah were selected and randomly divided to experimental and control groups. A working memory ...
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The aim of this study was to evaluate the effect of perceptual-motor training on working memory in children with hearing disorders. For this purpose, 24 student with hearing loss (9-12 years old) in Kermanshah were selected and randomly divided to experimental and control groups. A working memory test by Wechsler memory software was used in this study. The experimental group performed a perceptual-motor training program (static and dynamic balance exercises, throw and receive the ball …) for 8 weeks, 3 sessions per week, 60 minutes each session. Finally, both groups conducted the posttest. Based on α=0.01 and normal distribution of data, mixed ANOVA test was used. The results showed that working memory was influenced by perceptual-motor training (P<0.05). Children in the experimental group showed a better significant performance in terms of counting on forward and visual memory span than control group (P<0.05), but there was no significant difference in the countdown between the two groups (P˃0.05). The present findings suggest that perceptual-motor training can improve working memory in children with hearing loss.
Yasin Kazemi; Ali Heirani; Ghoobad Mehrabiyan
Abstract
This study aimed at examining the effect of local games on motor development and aggressive behavior in preschool children. In a semi-experimental study, 40 children (6 years old) were selected randomly from preschools in Ahwaz city. Pretest was conducted using Ulrich Gross Motor Skills test and Aggression ...
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This study aimed at examining the effect of local games on motor development and aggressive behavior in preschool children. In a semi-experimental study, 40 children (6 years old) were selected randomly from preschools in Ahwaz city. Pretest was conducted using Ulrich Gross Motor Skills test and Aggression Scale. Based on their pretest scores, subjects were divided into two equal groups: local games and preschool common activities. Local games group participated in local games program for 8 weeks, 3 sessions per week while the other group had their preschool common activities. Then, all subjects participated in a posttest. After ensuring normal data distribution using Kolmogorov-Smirnov test, paired and independent t tests were used for intergroup and intra-group comparisons. Paired t test analysis showed the significant effect of both programs on motor development and reduction in aggression in preschool children. But intergroup comparison showed the advantage of local games over the preschool common activities (P=0.001). It is suggested that preschools should use local games to enhance motor development and to reduce aggressive behaviors in children.
Ghoobad Mehrabeyan; Ali Heirani; Mahmoud Gholipoor
Abstract
This study aimed at examining the effect of different focus of attention instructions and cognitive styles on the learning of dart throwing skill. 80 children were randomly selected and divided into four equal groups: a) field independent-external attention, b) field independent-internal attention, c) ...
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This study aimed at examining the effect of different focus of attention instructions and cognitive styles on the learning of dart throwing skill. 80 children were randomly selected and divided into four equal groups: a) field independent-external attention, b) field independent-internal attention, c) field dependent-external attention and d) field independent-internal attention based on their pretest scores (10 trials of dart throwing). Then, in acquisition phase, they practiced 6 blocks of 10 trials of dart throwing task with regard to their focus of attention and cognitive style. Retention test was conducted 24 hours after the acquisition phase similar to pretest. After ensuring data normality by Kolmogorov-Smirnov test, ANOVA 4*6 with repeated measures was conducted on block factor and one-way ANOVA and Bonferroni post hoc test was applied in acquisition and retention phases respectively. Results showed significant differences in scores of all groups in all phases (P<0.05) and those with field independent style had better performance in external focus of attention than internal focus of attention and those with field dependent style had better performance in internal focus of attention than external focus of attention. In other words, cognitive styles must be noted during recruiting the focuses of attention.
Ayoob Sabaghi; Ali Heirani
Abstract
This study aimed at comparing the effect of self-controlled feedback with 100% frequency on motor skill learning in children. 60 children (11.1±0.86 yr) were selected randomly and based on their pretest results divided into same three groups of 100% feedback, self-controlled and yoked. In the ...
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This study aimed at comparing the effect of self-controlled feedback with 100% frequency on motor skill learning in children. 60 children (11.1±0.86 yr) were selected randomly and based on their pretest results divided into same three groups of 100% feedback, self-controlled and yoked. In the acquisition phase, subjects completed 120 trials. At the end of the second day, subjects performed a 10-trial block as the acquisition test. After 48 hours, retention test was conducted like the acquisition test. MANOVA with repeated measures on the intra-group factor (trial blocks) was recruited in the acquisition phase and one-way ANOVA and LSD post hoc test was used for the retention phase. The results of the acquisition phase showed the significant effect of blocks (P<0.05). The findings of the retention phase showed that 100% feedback and self-controlled feedback groups had better results than the yoked group (P<0.05). Also, in two self-controlled subgroups, the group which received feedback above 50% had better performance. The pattern of these results supported former findings about the effectiveness of feedback in motor learning. In addition, it showed that frequency of feedback had to be high in children during self-controlled feedback.
Moslem Rahmani; Ali Heirani; Hadi Yaditabar
Abstract
Cognitive performance such as prediction and reaction time changes along with aging. It seems that regular lifetime physical activity depends on the delay of these factors. This study aimed at investigating the effect of Pilates training on the improvement of motor performance of sedentary elderly men ...
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Cognitive performance such as prediction and reaction time changes along with aging. It seems that regular lifetime physical activity depends on the delay of these factors. This study aimed at investigating the effect of Pilates training on the improvement of motor performance of sedentary elderly men in Kermanshah city. 40 sedentary elderly men (mean age 72.15 ± 6.54 years) were selected from the senior citizen centers in Kermanshah and were divided into two groups of experimental and control randomly. The experimental group performed Pilates protocol for 8 weeks. Both groups participated in the pretest and posttest of cognitive performance. The data obtained from the pretest and posttest were analyzed by paired samples t test and independent t test was used to compare the posttests of both groups. The results showed that Pilates group outperformed the control group significantly in their cognitive status and reaction time in the posttest (P˂0.05), but there was no significant difference in prediction between these two groups. The patterns of these results suggested that Pilates exercises could improve the elderly's cognitive performance.
Aioob Sabaghi; Naser Behpoor; Ali Heirani
Abstract
This study aimed at investigating the effect of the type of feedback and practice on the acquisition of parameter index. For this purpose, 8 groups (each 12 subjects) were formed: constant practice group with self–controlled feedback, constant practice group with yoked feedback (yoked group), blocked ...
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This study aimed at investigating the effect of the type of feedback and practice on the acquisition of parameter index. For this purpose, 8 groups (each 12 subjects) were formed: constant practice group with self–controlled feedback, constant practice group with yoked feedback (yoked group), blocked practice group with self–controlled feedback, blocked practice group with yoked feedback, random practice group with self–controlled feedback, random practice group with yoked feedback, serial practice group with self–controlled feedback and serial practice group with yoked feedback. The subjects threw towards a circle drawn on the ground with closed eyes from a 3m distance with the score range from 10 to 100 (failing to throw in the circle meant no score). The data were analyzed using mixed factorial analysis of variance and one-way analysis of variance (P<0.05). In the retention test, the self–controlled feedback prioritized the yoked feedback (P<0.05); however, the effect of practice type was not observed (P>0.05), that is, there was no difference between practice in contextual interference condition and practice in constant condition. The results observed in the transfer test were contrary to those observed in retention test, that is, the effect of feedback type was not observed (P>0.05). The results also showed that the children did not reach the final stage of self-regulation (i.e. generalization) while the effect of practice type was observed (P<0.05) and the practice groups in contextual interference condition were superior. Also, there was no statistically significant difference among practice groups in contextual interference condition (i.e. blocked, serial and random practice groups) in all acquisition stages. Overall, this study showed the beneficial effect of self–controlled feedback in the retention test and practice in contextual interference condition in the transfer test in children. As there was no difference among practice groups in contextual interference condition, the present results confirmed Magill and Hall's (1990) second hypothesis, because the effect of contextual interference was not observed in a similar motor program.
Manochehr Ghalkhani; Ali Heirani; Vahid Tadibi
Volume 3, Issue 2 , October 2012, , Pages 99-117
Abstract
Cognitive teaching methods facilitate the acquisition of motor skills; among these methods, the combination of physical, observational and imagery exercises has been the focus of recent investigations. The aim of this study was to investigate the facilitative effect of the combination of physical, observational ...
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Cognitive teaching methods facilitate the acquisition of motor skills; among these methods, the combination of physical, observational and imagery exercises has been the focus of recent investigations. The aim of this study was to investigate the facilitative effect of the combination of physical, observational and imagery exercises on immediate and delay retention of badminton high serve. The statistical population consisted of all male Razi University students. 84 students (mean age of 20.42+1.4 yr and score of imagery ability of 48.69+6.19) voluntarily participated in this study. Pretest included immediate and delay retention of badminton high serve using Scott and Fox test. Then, participants were assigned to homogenous groups according to their pretest (each group 12 participants): physical, observation, imagery, physical-observation, physical-imagery, observation-imagery, and physical-observation-imagery. Participants accomplished three sessions of 90 trials of badminton high serve. At the end of the final training session, an immediate test of retention was administered followed by a test of delay retention after 48 hours. One-way ANOVA test indicated that in both immediate and delay retention, the physical-observation-imagery group and the physical group significantly performed high serve better than other groups (p
