When comparing results before and after intervention , the dance group showed a large effect in TUG time ( ES = @ , p = @ ) , TUG step number ( ES = @ , p = @ ) , BBS ( ES = @ , p = @ ) , FAB ( ES = @ , p = @ ) , MRT response time ( ES = @ , p < @ ) , AS ( ES = @ , p < @ ) , SDS ( ES = @ , p = @ ) and UPDRS ( ES = @ , p < @ ) .