Motor decline Most patients with DLB and PDD had postural instability gait difficulty (PIGD
); tremor dominant and PIGD
types evenly distributed in PD group; PIGD
significantly associated with increased cognitive decline.
PIGD, OLS, TUG, FOG, HY, and sex were entered into our stepwise multiple regressions, and TUG, OLS, and sex were identified as significant (p < 0.
Abbreviations: 6MWD = 6-minute walk distance, FOG = Freezing of Gait, HY = Hoehn and Yahr, OLS = one-leg stance, PD = Parkinson disease, PIGD = Postural Instability and Gait Disorder, SD = standard deviation, TUG = timed up-and-go (test), UPDRS = Unified Parkinson's Disease Rating Scale.