Motor Development and Learning
Mahsa Gholizadeh varaniab; Mansour Eslami; Mozhgan Memarmoghaddam; masomeh Ghorbani marzoni
Abstract
Introduction: This study aimed to investigate the effect of dart-throwing exercises with the non-dominant hand on the transfer percentage of dart-throwing accuracy, as well as the variability and coordination of the movement of the dominant hand.
Research Method:In a semi-experimental design, 24 eligible ...
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Introduction: This study aimed to investigate the effect of dart-throwing exercises with the non-dominant hand on the transfer percentage of dart-throwing accuracy, as well as the variability and coordination of the movement of the dominant hand.
Research Method:In a semi-experimental design, 24 eligible students were randomly assigned to experimental and control groups.The experimental group underwent 12 sessions of dart-throwing exercises with the non-dominant hand using a 10 target effort, while the control group did not engage in any specific exercise. Limb coordination and variability were assessed using the IMU Noraxon device, and accuracy measurements were taken using radial error. Variability and coordination data were analyzed using the SPM programming model in the MATLAB environment, and a two-way repeated measures ANOVA was utilized to analyze behavior data at a significance level of 0.05.
Findings:There was a significant 27% reduction in radial error (p=0.002) and a significant 20 to 50% decrease in the movement variability after exercise (p<0.05); however, there was no significant difference in movement coordination in the experimental group after the exercise sessions (p>0.05). As a result, the transfer percentage of dart-throwing accuracy in the experimental group increased.
Conclusion: The results of this study demonstrated the transfer from the non-dominant limb to the dominant limb. Dart-throwing accuracy in the dominant hand improved, accompanied by a decrease in movement variability. Therefore, it is recommended for coaches and therapists to prevent a decline in the performance of individuals with injuries in their dominant limb by incorporating exercises for the non-dominant limb. limb.
Nasibe Hatami; Shahzad Tahmasebi; Mehdi Shahbazi
Abstract
Nowadays, universities are known as the main context of thinkingNowadays, universities are known as the main context of thinking and contemplation and students have an essential role in the development of the society.Therefore,factors affecting educational and research performance are of great importance ...
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Nowadays, universities are known as the main context of thinkingNowadays, universities are known as the main context of thinking and contemplation and students have an essential role in the development of the society.Therefore,factors affecting educational and research performance are of great importance .The aim of the present study was to investigate the effect of PETTLEPimagery on bilateral transfer of handball skill.The Sample included B.Sc students in physical education at the University of Tehran,24 of which participated in this research voluntarily. After taking part in the pretest, the participants were randomly divided into2groups of imagery with dominant hand and non-dominant hand.Then PETTLEP imagery was applied on both groups for12 sessions.A posttest similar to the pretest was done after the last session.This was followed by aretention test after 24 hours and then a transfer test in the form of handball tripleshootafter30minutes.After ensuring the consistency of variances by Leven test and normality of the data by Shapiro-Wilk test,a multivariate analysis of variance(MANOVA)and an analysis of variance with repeated measures with a significant level of α=.05 were used.The results showed that intervention of PETTLEP imagery had a significant effect on skill transfer through the entire process(P≥.05).Thus,PETTLEP imagery causes the occurrence of bilateral transfer. Therefore, PEETLEP mental imagery is recommended to be used for the improvement of people's skill when employing bilateral transfer. Therefore, PEETLEP mental imagery is recommended to be used for the improvement of people's skill when employing bilateral transfer. Therefore, PEETLEP mental imagery is recommended to be used for the improvement of people's skill when employing bilateral transfer.
