ArticleGait & posture2022
Increased foot strike variability during turning in Parkinson's disease patients with freezing of gait.
Article in Gait & posture, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Lessons Learned From a Delayed-Start Trial of Modafinil for Freezing of Gait in Parkinson's Disease.Annals of clinical and translational neurology · 2026Trial
- Two-Dimensional Sagittal-Plane Gait Evaluation and Similarity Analysis in Parkinson's Disease Under ON and OFF Conditions: A Pilot Study.Brain sciences · 2026Article
- Gait instability is a more specific predictor of corticospinal tract function than gait speed in clinically stable multiple sclerosis.Scientific reports · 2025Article
- Levodopa influence on turning dynamics in people with Parkinson's disease.Scientific reports · 2025Article
- Machine learning model comparison for freezing of gait prediction in advanced Parkinson's disease.Frontiers in aging neuroscience · 2024Article
- Differential spatiotemporal gait effects with frequency and dopaminergic modulation in STN-DBS.Frontiers in aging neuroscience · 2023Article
- Gait Declines Differentially in, and Improves Prediction of, People with Parkinson's Disease Converting to a Freezing of Gait Phenotype.Journal of Parkinson's disease · 2023Article
- A study of turn bias in people with idiopathic Parkinson's disease.Experimental brain research · 2022Article
- Feasibility of telemedicine research visits in people with Parkinson's disease residing in medically underserved areas.Journal of clinical and translational science · 2022Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
backgroundTurning is a common trigger for freezing episodes in patients with Parkinson's disease (PD). Freezing during turning can lead to falls and fractures and decreased quality of life. RESEARCH QUESTION: Does foot-strike contact variability also increase during turning, as previously reported in straight gait in PD patients with Freezing of Gait (FOG)?
methodsSubjects were instructed to walk on a gait mat, making "normal pivot" (180°) turns at each end. ProtoKinetics Movement Analysis Software (PKMAS) software was used for analysis. Video recordings and foot-pressure-prints were studied to identify and define turn segments. Spatiotemporal gait and turn measures were then determined only for the turn segments. A movement disorders neurologist determined clinical freezes.
results100 subjects (28 controls, 38 noFOG and 34 FOG) were included. Compared to non-freezers (noFOG), FOG subjects had a smaller foot-strike during turning (a measure of completeness of foot contact with the mat) and increased foot-strike variability. FOG subjects also had a shorter stride-length, slower stride-velocity, and greater swing phase time and percentage during turns. After adjusting for turn direction, inner/outer leg dynamics showed heavier inner leg footsteps in FOG subjects. 38% of FOG subjects experienced freezes during turning. 69% of freezes occurred during the middle third of the turn. Turn-freezers had more severe spatiotemporal gait deficits. SIGNIFICANCE: Developing targeted therapies to retrain subjects to plant their whole foot on the ground with more consistency could help decrease episodes of freezing of gait.
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