Results: This case series study included 20 PD participants with STN-DBS, with a mean age of 61.2±10.1 years. There were no differences in equilibrium scores of SOT conditions between 60, 130, and 180 Hz frequencies (p> 0.05), except the SOT6 score (p= 0.003), where 60 Hz showed better equilibrium performance in SOT6, indicating an advantage in postural control when visual and somatosensory cues are disturbed, and vestibular cues are not.