Document Type : Research Paper I Open Access I Released under CC BY-NC 4.0 license
Authors
1 Master student of Sports Biomechanics, University of Mazandaran
2 Associate Professor in Sports Biomechanics, Faculty of Physical Education and Sports Sciences, University of Mazandaran, Mazandaran, Iran
3 Assistant Professor in Motor Behavior, Faculty of Physical Education and Sports Sciences, University of Mazandaran, Mazandaran, Iran
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 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.
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