Inclusion Criteria:  diagnosis of FOG with expertise in movement disorders. the score of item 3 of the FOG questionnaire ≥1. ongoing treatment with a stable dose of any medication for 2 months. 40 years of age or older.  Exclusion Criteria:  a history of addiction, psychiatric disorders, or neurological diseases other than PD. focal brain lesions on T1-/T2-weighted fluid-attenuated inversion recovery images. anti-PD medication adjustments during rTMS treatment. history of substance abuse within the past 6 months. nonremovable metal objects in or around the head. previously received rTMS treatment. prior history of seizure or history in first-degree relatives.