In both groups , Unified Parkinson 's Disease Rating Scale Section II ( UPDRS II ) , UPDRS III , @-minute walking test ( @MWT ) , Timed Up-and-Go test ( TUG ) ; PD Disability Scale ( PDDS ) , and l-dopa equivalents were assessed at baseline ( T@ ) , @ months ( T@ ) , @ year ( T@ ) , @ months ( T@ ) , and @ years ( T@ ) later .