Statistical analysis was performed using SPSS 15.0(SPSS Inc, Chicago, IL, USA). The data distribution was evaluated with the Kolmogorov-Smirnov test. Differences of all T variables between the dual motor task training and control dyna groups were examined by the independent t test or the chro test for continuous or dichotomous data. Two-way repeated T measure ANOVA was performed to compare the effects of impa the intervention and subject groups(dual motor task training train and contro). Statistical significance was accepted for value exer dual less than 0.05.