---

The purpose of this study was to investigate the effects of core stabilization training on balance and reaction time in children with developmental coordination disorder. This was a semi-experimental study. Twenty children recognized for DCD, age range 6 to 12 years old were recruited form DCD children rehabilitation center in Tehran and randomly divided into experimental and control groups. Continuous Performance Test, Standing Stroke Test, and Y Balance Test were used to measure reaction time and statics and dynamic balance of participants, respectively. After the pretest, the experimental group performed the specific Core Stabilization Training protocol for 8 weeks, 3 sessions per week and 45 minutes per session. Analysis of covariance was used to analyze the data. The results indicated that the reaction time, dynamic and static balance were significantly improved in experimental group in comparison to control group. The results of this study indicated that in order to upgrade the level of motor skills in children with developmental coordination disorder, in addition to the general physical activity programs, specific core stabilization training that includes exercises to improve balance and reaction time is recommended.