Because of the importance of motor asymmetry in the implementation of skills like soccer shot with bothsides of the bodyare applicabletraining sessionsshouldbe designedto reducethe asymmetry inbilateralmotorskills. Hence, the present study aimed to determine the effect of practice organization on motor asymmetric of soccer shot skill in children 7-10 yr.Therefore, 50 male with mean age ±10.1 years from 3 soccer schools (5 left footed and 45 right footed) were selected by random cluster sampling method and randomly divided into dominant-nondominant blocked, nondominant-dominant blocked, serial, increasing practice, and control groups. The Coren's footedness test, theAmirfakhrian’s pattern evlaluation scale, and Moore-Christine shot test (modified for children) were used to determinethe dominant leg, evalutat shot pattern, and shot accuracy, respectively.Thetests were performedin 3 phases (pretest, retention, and transfertests). Results of ANCOVA indicated that in the retention and transfer tests, motor asymmetry indices in shot accuracy of control and increasing groups were the most and least values, respectively. On the other hand, motor asymmetry indices in shot pattern of increasing and nondominant-dominant foot groups were the least and most values, respectively, in retention test, but in transfer test, there was no significant between groups difference this index. Thus, it is recommended the practice with increasing the level of contextual interference for coaches to reduce motor asymmetry in feet for soccer shot
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