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Published in early 2026, the International Consortium for FOG (ICFOG) released updated clinical and technical definitions of FOG and introduced a consensus-based standardized testing protocol, the Giladi protocol (GP-FOG), which is currently still under evaluation in an ongoing study. Complementing these advances, two new outcome measures, the clinician-reported outcome (ClinRO) and the patient-reported outcome (PRO), are highlighted in this review. Recent technological developments in both detection and potential prevention of FOG are moving the field toward individualized, biomarker-based, on-demand treatment strategies. In addition, emerging insights into the pathophysiological mechanisms of FOG, particularly nondopaminergic contributions, are discussed. Together, these developments provide a contemporary framework for improving the assessment, understanding, and personalized management of FOG in Parkinson\u2019s disease.<\/jats:p>","DOI":"10.1007\/s00415-026-13765-6","type":"journal-article","created":{"date-parts":[[2026,3,21]],"date-time":"2026-03-21T17:02:57Z","timestamp":1774112577000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["What is new in Freezing of Gait?"],"prefix":"10.1007","volume":"273","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1654-4443","authenticated-orcid":false,"given":"Eileen","family":"G\u00fclke","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simon J. 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G\u00fclke has no direct competing interests related to this manuscript. In the past, E. G\u00fclke received speaker honoraria for presentations at symposia sponsored by Zambon\/Weser GmbH, Grifols, Kreiskrankenhaus Gummersbach, and Bial. She also received reimbursement of travel and accommodation expenses from Abbvie, Medtronic, Abbott, Bial, Boston Scientific, and Zambon GmbH for attendance at congresses and educational events. E. G\u00fclke\u2019s institution (UKE), not E. G\u00fclke personally, received research funding from Boston Scientific and Zambon. In addition, E. G\u00fclke serves as an Editor for the Thieme journal Neurologie up2date and is currently funded by the DFG (522710045). S.J.G. Lewis is funded by the National Health and Medical Research Council Leadership Fellowship (1195830).","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflicts of interest"}}],"article-number":"222"}}