Background: Among the main deficits in children with developmental coordination disorder (DCD), the underdeveloped balance is important because of the impact on motor skills development, the falling risks and participation in various physical activities. Objective: The purpose of this study was to examine the effect of task-specific balance training in dual-task and single-task conditions on balance performance in children with DCD. Methods: Thirty-nine boys aged from 7 to 9 years with DCD were randomly assigned to 3 groups: dual-task training group (n = 13, mean age 8.59 ± 0.82 years), single-task training group (n = 13, mean age 8.61 ± 0.83 years) and control group without any intervention (n = 13, mean age 8.41 ± 0.86 years). Each session in the single-task or dual-task group continued for 45 minutes, three times per week for a duration of 8 weeks. The balance of all three groups was measured using the Stork Balance Stand Test and dynamic Y Balance Test in the pre-test, post-test (after 24 sessions), and follow-up phases (2 months after the intervention). Results: There was a significant difference between the dual-task and singletask training program in static and dynamic balance tests score during post-test. The dual-task program significantly improved the balance performance of children with DCD (p < .001). Conclusions: Based on the findings of the present research, the dual-task training condition focusing on balance and cognitive tasks may improve the skills of children on performing static and dynamic balance significantly more than the single-task training.

Keywords