The Comparison of the Effects of Attentional-Cognitive Load and Motor-Cognitive Load on Bimanual Coordination Performance

The aim of this study was to compare the effects of cognitive-attentional and cognitive-motor load on the performance of bimanual coordination skill. 31 female students (mean age 25+2 years) from Shahid Beheshti University attending were selected voluntarily and divided randomly into three groups: single group (N=11), cognitive group (N=10) and cognitive-motor group (N=10). Single group participants performed bimanual coordination single task. Cognitive group participants performed bimanual coordination task simultaneously with number countdown task, and cognitive – motor participants performed bimanual coordination task simultaneously with feet reaction time task. Two hand coordination of Vienna test system was used to assess the performance of bimanual coordination task. One – way ANOVA and Tukey post hoc test were used to analyze data. Statistical significance level was p<0.05. Results showed that there were no significant differences in the performance of bimanual coordination task between single and cognitive groups, cognitive and cognitive – motor groups. Also results showed a significant difference in the performance of bimanual coordination task between single and motor groups. Generally, results showed that interference of two tasks with motor nature is more than interference of two tasks with motor and cognitive nature.