Motor Development and Learning
shole farahmand; elahe arabameri; shahzad tahmasebi boroujeni; Mehdi M Mirbagheri; morteza heidari
Abstract
Introduction: Researches that investigated the function of the upper limb of children with hemiplegic cerebral palsy, used single-handed tasks including the technique of limiting the healthy hand initially and then the approach of bimanual movement, such as intensive bimanual therapy, but the research ...
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Introduction: Researches that investigated the function of the upper limb of children with hemiplegic cerebral palsy, used single-handed tasks including the technique of limiting the healthy hand initially and then the approach of bimanual movement, such as intensive bimanual therapy, but the research that investigate the effect of bimanual handball catching exercises, not observed. the purpose of this study was to investigate hand performance after bimanual catching handball exercises in children with hemiplegic cerebral palsy.
Methods: The participants were 5 children referred to Fakhr Sadegh Clinic with an average age (10.2±2.28) who were selected Convenience. The parents of the children completed the consent form. Each participant was tested once before and once after training using the Purdue pegboard test, and the performance of one-handed, two-handed simultaneously and consecutively was checked. The participants performed two 30-minute sessions of bimanual exercises every week for a total of six weeks.
Results: The results were analyzed through spss27 software. Paired t-test showed that the performance of the less affected hand and consecutive bimanual coordination increased significantly, but simultaneous bimanual coordination did not improve significantly. Also, the Wilcoxon test did not show a significant improvement in the more affected hand.
Conclusion: The improvement of consecutive bimanual coordination after bimanual catching handball exercises can be due to the use of the ball, which improved the cognitive dimension more than the motor dimension
Mohammad Bagher Aali; Mehdi Shahbazi; – Mohammad Sohbatiha
Abstract
Self-talk is one of the psychological factors influencing the improvement and success of motor performance. The present research aimed to investigate the effect of motivational self-talk on bimanual coordination of university students. 24 students of physical education (12 females and 12 males, mean ...
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Self-talk is one of the psychological factors influencing the improvement and success of motor performance. The present research aimed to investigate the effect of motivational self-talk on bimanual coordination of university students. 24 students of physical education (12 females and 12 males, mean age = 22.62 and SD = 2.081) were selected by convenience sampling method. After the pretest, subjects were divided into two homogeneous groups of motivational self-talk and no self-talk using bimanual coordination tester. For data analysis, descriptive and inferential statistics including independent t test and paired t test were used at 0.05 significance level. Results showed that self-talk improved the coordination performance significantly (p < 0.05). Also, the female group had a significantly better precision in bimanual coordination (p < 0.05) and the male group had a significantly better speed in bimanual coordination (p < 0.05). But, there was a significant difference between boys and girls in self-talk group in the posttest (p < 0.05). According to these findings, it is suggested that motivational self-talk should be used to improve and promote bimanual coordination performance.
Ali Zahiri; Mehdi Shahbazi; Mohammad Reza Kordi; Jamal Fazel Kalkhoran
Abstract
The aim of this study was to investigate the effect of central and peripheral fatigue on motor coordination in collegiate athletes. The population consisted of all the students of Faculty of Physical Education and Sports Sciences of University of Tehran and 24 subjects were selected by convenience sampling ...
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The aim of this study was to investigate the effect of central and peripheral fatigue on motor coordination in collegiate athletes. The population consisted of all the students of Faculty of Physical Education and Sports Sciences of University of Tehran and 24 subjects were selected by convenience sampling method. They were randomly divided into two groups (central and peripheral fatigue) depending on the type of fatigue after a bimanual motor coordination pretest. Bimanual motor coordination posttest was performed after the intervention for 12 hours. In order to investigate the differences between the groups, independent t test and to determine differences within a group, dependent t test were used with the significance level of P≤0.05. Results showed that the mean time to complete the task and the timing error in central (P=0.004) and peripheral (P=0.0001) fatigue groups significantly increased compared with the pretest. Also, a significant difference in bimanual motor coordination between the two groups was observed in posttest (P=0.006). According to the results, it is suggested that athletes' training and working programs should be planned so that they include exercises to increase mental stamina along with physical exercises and that the athletes can provide their optimal performance in different conditions.
Alireza Farsi; Behrooz Abdoli; Maryam Kaviyani
Volume 3, Issue 1 , June 2011, , Pages 43-55
Abstract
The aim of this study was to compare the effects of cognitive-attentional and cognitive-motor load on the performance of bimanual coordination skill. 31 female students (mean age 25+2 years) from Shahid Beheshti University attending were selected voluntarily and divided randomly into three groups: single ...
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The aim of this study was to compare the effects of cognitive-attentional and cognitive-motor load on the performance of bimanual coordination skill. 31 female students (mean age 25+2 years) from Shahid Beheshti University attending were selected voluntarily and divided randomly into three groups: single group (N=11), cognitive group (N=10) and cognitive-motor group (N=10). Single group participants performed bimanual coordination single task. Cognitive group participants performed bimanual coordination task simultaneously with number countdown task, and cognitive – motor participants performed bimanual coordination task simultaneously with feet reaction time task. Two hand coordination of Vienna test system was used to assess the performance of bimanual coordination task. One – way ANOVA and Tukey post hoc test were used to analyze data. Statistical significance level was p
Gholamhosein Nazemzadegan; Fazlollah Bagherzadeh; Rasoul Hemayattalab; Alireza Farsi
Volume 2, Issue 1 , April 2010, , Pages 133-149
Abstract
In this study, the effect of cognitive load (CL) training on duration and accuracy of bimanual coordination (BC) task was investigated. For this purpose, athletic male students of Shiraz University were randomly divided into 4 groups: G1 with low CL, G2 with intermediate CL, G3 with high CL and G4 control. ...
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In this study, the effect of cognitive load (CL) training on duration and accuracy of bimanual coordination (BC) task was investigated. For this purpose, athletic male students of Shiraz University were randomly divided into 4 groups: G1 with low CL, G2 with intermediate CL, G3 with high CL and G4 control. The subjects practiced for 6 weeks, 3 sessions a week, 6 blocks, 12 trials. The subjects performed bimanual coordination task by Vienna test system (v=71%-84% and r=85%-96%). Independent T test and one-way ANOVA were used to analyze the data. The results showed that high CL affected the accuracy of bimanual coordination task. No significant difference was observed between CL groups and control group in overall duration (?=0.05). It can be concluded that if there is high CL in activities which require much attention, attention capacity may change and in skills that need attention, the task can be improved after information processing as a result of capacity change.
