Document Type : Original Articles

Authors

• Behrouz Abdoli ¹
• Alireza Farsi ¹
• Mostafa Teymuri Kheravi ²
• Otella Shoja ²

¹ Associate Professor, Department of Motor Behavior, School of Physical Education and Sports Science, Shahid Beheshti University, Tehran, Iran

² Department of Motor Behavior, School of Physical Education and Sports Science, Shahid Beheshti University, Tehran, Iran

Abstract

Introduction: The purpose of this study was to compare laterality in the asymmetric transfer of strength and velocity in children with 11 to 13 years of age. Materials and Methods: In this semi-empirical study, 28 students (mean age, 11.6 ± 0.62 years), who were recruited from junior high schools of Kashmar, Iran, were divided into two groups of 14 each. One group practiced strength training with the right hand and speed training with the left hand and in another group the usage of hands were reversed, meaning that strength training was practiced with the left hand and speed training with the right one. Participants had practiced for 3 sessionsaweek over a 4-weekperiod. Results: The results of one-way ANOVA showed that there was significant difference in magnitude of strength transfer between the two groups. The magnitude of strength transfer from the left hand to right one was significantly greater than the vise versa (P = 0.029). However in “Velocity” variable, there was no significant difference. Conclusion: According to results of this study and specialization of right hemisphere in control of strength, it seems that the magnitude of strength transfer from left hand to right hand is greater than the opposite direction. Keywords: Asymmetric transfer, Laterality, Strength, Velocity, Brain hemispheres