Reliability of the new freezing of gait questionnaire: Agreement between patients with Parkinson's disease and their carers

Nieuwboer, Alice; Rochester, Lynn; Herman, Talia; Vandenberghe, Wim; Emil, George Ehab; Thomaes, Tom; Giladi, Nir

doi:10.1016/j.gaitpost.2009.07.108

Cited by 505 publications

(406 citation statements)

References 26 publications

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“…Nonetheless, the reliability of this version in patients with different educational levels remains to be tested. Another version was developed by Nieuwboer et al 26 and, in this case, the authors excluded the two items concerning gait difficulties and included questions about the impact of FOG on daily life.…”

Section: Discussionmentioning

confidence: 99%

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Validity of the Brazilian version of the freezing of gait questionnaire

Baggio

Curtarelli

Rodrigues

et al. 2012

Arq. Neuro-Psiquiatr.

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OBJECTIVE: To validate the freezing of gait questionnaire (FOG-Q) for a Brazilian population of Parkinson's disease (PD) patients. METHODS: One hundred and seven patients with a diagnosis of PD were evaluated by shortened UPDRS motor scale (sUPDRm), Hoehn and Yahr (HY), Schwab and England scale (SE), Berg balance scale (BBS), falls efficacy scale international (FES-I), gait and balance scale (GABS), and the FOG-Q Brazilian version. RESULTS: 47.7% of PD patients had FOG episodes; this group had worse scores on sUPDRSm, FOGQ, FES-I, BBS, GABS and FOG item of UPDRS when compared to the PD group without FOG. The internal consistency was 0.86, intra-rater 0.82 and inter-rater 0.78. The FOG-Q Brazilian version was significantly correlated with items related to gait and balance. The ROC curve was 0.94, the sensitivity was 0.90and specificity was 0.92. CONCLUSION: Our study suggests that the FOG-Q Brazilian version is a reliable and valid instrument for assessing FOG in PD patients.

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Section: Discussionmentioning

confidence: 99%

“…One of the limitations of the FOG-Q is that FOG is quantified according to patients' self-reports, and as shown in the study of Nieuwboer et al 26 patients tend to spontaneously underestimate the severity of FOG. However, the FOG-Q may also help to recognize and differentiate FOG from turning difficulties and offstate akinesia 27 .…”

Section: Referencesmentioning

confidence: 99%

Validity of the Brazilian version of the freezing of gait questionnaire

Baggio

Curtarelli

Rodrigues

et al. 2012

Arq. Neuro-Psiquiatr.

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“…FOG was evaluated using FOG questionnaire, which is able to quantify self-report history of mobility, gait disturbances, and freezing 21 . The new freezing of gait questionnaire was published in 2009 by Nieuwboer et al 22 . The quantitative data are described using descriptive statistics (median, minimum, maximum, mean, and standard deviation -SD).…”

Section: Methodsmentioning

confidence: 99%

Freezing of gait is associated with cortical thinning in mesial frontal cortex

Vaštík¹,

Hok²,

Valošek³

et al. 2017

Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub

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Aims.The relationship between freezing of gait (FOG) and regional brain atrophy has been intensively investigated, but it is still not clearly understood. The study objective was to test whether grey matter (GM) atrophy contributes to FOG in Parkinson´s disease (PD) using a surface-based algorithm. Methods. We investigated 21 patients with PD, 11 with FOG and 10 without FOG. Both groups were assessed using a FOG questionnaire and Hoehn and Yahr staging. High resolution T1-weighted brain images were acquired for each subject using a 1.5T MRI scanner. A surface-based method implemented in FreeSurfer was used to quantify the GM atrophy. A vertex-wise and region of interest (ROI) comparison of spatially normalized subject data using a general linear model and the Wilcoxon rank sum test were to assess significant group differences. Results. Higher global levels of cortical atrophy were detected in freezers, although this was not statistically significant. The vertex-wise analysis revealed significant local reduction in grey matter thickness in the left supplementary motor area, m iddle/anterior cingulate cortex, temporal pole and right frontal operculum in freezers at P<0.001, uncorrected. The ROI analysis of average thickness confirmed the regional atrophy in bilateral anterior and posterior cingulate cortices. No significant relative regional cortical atrophy was observed in non-freezers. Conclusion. FOG was associated with regional cortical atrophy, especially in mesial frontal and cingulate cortices. Our findings provide additional evidence that the development of FOG in patients with PD is associated with local structural cortical changes.

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“…However, these two tests have not been compared back to back. Moreover, it is unknown whether combining both tests yields a higher sensitivity than either test alone.To answer these questions, we included 16 patients with PD and subjective experience of daily FOG, as determined using the N-FOGQ [9]. Mean age of these patients was 70 years (range 51-89 years), with a mean disease duration of 10 years (range 3-20), mean MDS-UPDRS subsection III score of 36 (range 24-49) and mean N-FOGQ score of 19 (range 10-25).…”

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confidence: 99%

Provoking Freezing of Gait in Clinical Practice: Turning in Place is More Effective than Stepping in Place

Dijsseldonk

Wang

Wezel

et al. 2018

JPD

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Freezing of gait (FOG) is common and debilitating in Parkinson's disease (PD) [1], and significantly contributes to the occurrence of falls [2]. To prevent falls and fall-related injuries, timely detection of FOG in clinical practice is needed, as this can be the start of tailored interventions [3]. However, provoking FOG in a clinical environment is challenging, for several reasons. First, freezing is provoked by constraints in the physical environment, and the typically wide and well-lit hospital corridors are not ideal to provoke FOG. Moreover, clinicians are usually on a tight schedule and do not always have time to perform a complete FOG-provoking test battery [4]. It is therefore important to identify the most effective task * Correspondence to: Jorik Nonnekes, MD, PhD, Radboud University Medical Centre, PO Box 9101, 6500 HB Nijmegen, The Netherlands. E-mail: jorik.nonnekes@radboudumc.nl. to provoke FOG. Stepping in place and rapid turning on the spot are both effective ways to provoke FOG [5][6][7][8]. However, these two tests have not been compared back to back. Moreover, it is unknown whether combining both tests yields a higher sensitivity than either test alone.To answer these questions, we included 16 patients with PD and subjective experience of daily FOG, as determined using the N-FOGQ [9]. Mean age of these patients was 70 years (range 51-89 years), with a mean disease duration of 10 years (range 3-20), mean MDS-UPDRS subsection III score of 36 (range 24-49) and mean N-FOGQ score of 19 (range 10-25). Hoehn and Yahr staging showed a modal score of 2 (range 2-4). All patients were examined in a practically defined OFF state, i.e., >12 hours after intake of the last dose of dopaminergic medication.

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Reliability of the new freezing of gait questionnaire: Agreement between patients with Parkinson's disease and their carers

Cited by 505 publications

References 26 publications

Validity of the Brazilian version of the freezing of gait questionnaire

Validity of the Brazilian version of the freezing of gait questionnaire

Freezing of gait is associated with cortical thinning in mesial frontal cortex

Provoking Freezing of Gait in Clinical Practice: Turning in Place is More Effective than Stepping in Place

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