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Mylius V, Zenev E, Brook CS, Brugger F, Maetzler W, Gonzenbach R, Paraschiv-Ionescu A. Imbalance and Falls in Patients with Parkinson's Disease: Causes and Recent Developments in Training and Sensor-Based Assessment. Brain Sci 2024; 14:625. [PMID: 39061366 PMCID: PMC11274436 DOI: 10.3390/brainsci14070625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/16/2024] [Accepted: 05/28/2024] [Indexed: 07/28/2024] Open
Abstract
Imbalance and falls in patients with Parkinson's disease (PD) do not only reduce their quality of life but also their life expectancy. Aging-related symptoms as well as disease-specific motor and non-motor symptoms contribute to these conditions and should be treated when appropriate. In addition to an active lifestyle, advanced exercise training is useful and effective, especially for less medically responsive symptoms such as freezing of gait and postural instability at advanced stages. As treadmill training in non-immersive virtual reality, including dual tasks, significantly reduced the number of falls in PD patients, the mechanism(s) explaining this effect should be further investigated. Such research could help to select the most suitable patients and develop the most effective training protocols based on this novel technology. Real-life digital surrogate markers of mobility, such as those describing aspects of endurance, performance, and the complexity of specific movements, can further improve the quality of mobility assessment using wearables.
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Affiliation(s)
- Veit Mylius
- Department of Neurology, Center for Neurorehabilitation, 7317 Valens, Switzerland; (E.Z.); (C.S.B.); (R.G.)
- Department of Neurology, Philipps University, 35043 Marburg, Germany
| | - Elisabeth Zenev
- Department of Neurology, Center for Neurorehabilitation, 7317 Valens, Switzerland; (E.Z.); (C.S.B.); (R.G.)
| | - Caroline S. Brook
- Department of Neurology, Center for Neurorehabilitation, 7317 Valens, Switzerland; (E.Z.); (C.S.B.); (R.G.)
- Department of Neurology, University of Bern, Inselspital Bern, 3010 Bern, Switzerland
| | - Florian Brugger
- Department of Neurology, Kantonsspital St. Gallen, 9007 St. Gallen, Switzerland;
| | - Walter Maetzler
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel University, 24105 Kiel, Germany;
| | - Roman Gonzenbach
- Department of Neurology, Center for Neurorehabilitation, 7317 Valens, Switzerland; (E.Z.); (C.S.B.); (R.G.)
| | - Anisoara Paraschiv-Ionescu
- Signal Processing Laboratory 5, Ecole Polytechnique Federale de Lausanne (EPFL), 1015 Lausanne, Switzerland;
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O'Neal SK, Miller SA, Eikenberry MC, Moore ES. A backward cycling programme for people with Parkinson's disease: a feasibility and preliminary results study. J Rehabil Med 2024; 56:jrm17738. [PMID: 38860715 PMCID: PMC11182036 DOI: 10.2340/jrm.v56.17738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 05/13/2024] [Indexed: 06/12/2024] Open
Abstract
OBJECTIVE To assess the feasibility of backward cycling for people with Parkinson's disease. Secondary objectives were to assess changes in gait and balance following a 6-week program. DESIGN A single-group prospective pre-test, post-test study with 1-month follow-up. SUBJECTS/PATIENTS Twenty-six people with Parkinson's disease (mean age: 69 (7.74) years, gender: 83% males, time since diagnosis: 6 (4.44) years). METHODS Participants pedaled backward on a stationary bicycle for 30 minutes at moderate intensity twice a week for 6 weeks. Feasibility was assessed by acceptability, suitability, and burden. Data collected at pre- and post-intervention with 1-month follow-up included backward stepping response variables, forward/backward gait variables, Mini-Balance Evaluation Systems Test (MBT), and 6 Minute Walk Test. RESULTS There was a high retention rate (95.8%) and adherence rate (100%) with one adverse event and minimal burden. Significant improvements were seen in step count and excursion distance during backward stepping responses, forward and backward gait velocity, forward step length, and the Mini-BESTest. CONCLUSION Backward cycling was a feasible intervention for people with Parkinson's disease, demonstrating low burden with high retention and adherence rates, and it is a safe exercise with the potential for benefits in gait and balance variables.
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Affiliation(s)
| | - Stephanie A Miller
- University of Indianapolis, Indianapolis, Indiana, USA
- Marian University, Indianapolis, IN, USA
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O'Malley N, Coote S, Clifford AM. Outcomes of importance to people with multiple sclerosis, Parkinson's disease and stroke following a falls prevention intervention: a qualitative study to inform a core outcome set. Disabil Rehabil 2024; 46:1580-1592. [PMID: 37092355 DOI: 10.1080/09638288.2023.2201513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 04/06/2023] [Indexed: 04/25/2023]
Abstract
Purpose: Falls are a major issue for people with neurological conditions, and the evaluation of falls prevention interventions is of high priority. To date, the views of patient groups regarding outcomes of importance have been largely overlooked. The purpose of this study was to explore outcomes of interest among people with Multiple Sclerosis (MS), Parkinson's disease (PD) and stroke upon completion of falls prevention interventions to inform the development of a core outcome set (COS).Materials and methods: Five online focus groups and one semi-structured interview were conducted among people with PD (n = 10), MS (n = 7), and post-stroke (n = 3), one of whom also had PD. Transcripts were analysed using reflexive thematic analysis.Results: Four themes were developed; (1) Fall events are not homogeneous, (2) Exercise-based programmes are beneficial but falls services are not meeting user needs, (3) Programme success beyond the reduction in falls, and (4) Acquisition of skills to self-manage falls beyond the life of the programme.Conclusions: This study presents new perspectives across patient groups regarding important outcomes upon completion of falls prevention interventions. Taken together with the findings of a literature review, this data will inform the development of a COS.Implications for rehabilitationPeople with multiple sclerosis, Parkinson's disease and stroke consider the success of a falls prevention intervention to be dependent on improvements across a wide range of outcomes.The design and implementation of falls prevention interventions should align with patient preferences.Clinicians and researchers should consider the use of multidomain interventions to facilitate improvements in the desired outcomes of patients.
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Affiliation(s)
- Nicola O'Malley
- School of Allied Health, University of Limerick, Limerick, Ireland
- Ageing Research Centre, Health Research Institute, University of Limerick, Limerick, Ireland
| | - Susan Coote
- School of Allied Health, University of Limerick, Limerick, Ireland
- Centre of Physical Activity for Health, Health Research Institute, University of Limerick, Limerick, Ireland
- Multiple Sclerosis Society of Ireland, Limerick, Ireland
| | - Amanda M Clifford
- School of Allied Health, University of Limerick, Limerick, Ireland
- Ageing Research Centre, Health Research Institute, University of Limerick, Limerick, Ireland
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Alissa N, Rehan R, Al-Sharman A, Latrous M, Aburub AS, El-Salem K, Morris L, Khalil H. Cognitive status and sleep quality can explain the fear of falling and fall history in people with Parkinson's disease. Int J Rehabil Res 2023; 46:338-343. [PMID: 37581294 DOI: 10.1097/mrr.0000000000000596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Fear of falling (FOF) is highly prevalent in people with Parkinson's disease (PwPD) and contributes to high fall risk. Studies reporting on the relationship between falls, FOF, and non-motor factors such as cognitive function and sleep quality in Parkinson's disease are limited. This study aimed to investigate (1) the relationship of cognitive function and sleep quality with FOF, and history of falls in PwPD; (2) differences in cognitive function and sleep quality between Parkinson's disease fallers and non-fallers; and (3) a cut-off score for cognitive function and sleep quality to discriminate Parkinson's disease fallers from non-fallers. Fifty PwPD were assessed for FOF [Falls Efficacy Scale-International (FES-I)], cognition [Montréal Cognitive Assessment (MOCA)], sleep quality [Pittsburgh Sleep Quality Index (PSQI)], and falls history. The MOCA is significantly associated with FES-I scores ( R2 = 0.429, P < 0.0001). Both MOCA ( P = 0.012) and PSQI ( P = 0.027) were associated with falls history even after adjusting for confounding factors (age, sex, L-dopa use, Parkinson's disease severity). Both MOCA and PSQI scores were able to distinguish fallers from non-fallers with cut-off scores of 15.5 and 7.5, respectively. Although our findings revealed that both cognitive function and sleep quality are important factors influencing falls and FOF in PwPD, it remains to be determined if addressing cognitive impairments and poor sleep quality may favorably impact balance before integrating such screenings into fall prevention programs.
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Affiliation(s)
- Nesreen Alissa
- Department of Physical Therapy and Rehabilitation Science, School of Medicine, University of Maryland, Baltimore, Baltimore, Maryland, USA
| | - Reem Rehan
- Department of Rehabilitation Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Alham Al-Sharman
- Department of Rehabilitation Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
- Department of Physical Therapy, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Mariem Latrous
- Department of Physical Therapy and Rehabilitation Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Ala' S Aburub
- Department of Rehabilitation Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
- Department of Physiotherapy, Israa University, Amman
| | - Khalid El-Salem
- Department of Neurosciences, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Linzette Morris
- Department of Physical Therapy and Rehabilitation Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Hanan Khalil
- Department of Physical Therapy and Rehabilitation Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
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Venuto CS, Smith G, Herbst K, Zielinski R, Yung NC, Grosset DG, Dorsey ER, Kieburtz K. Predicting Ambulatory Capacity in Parkinson's Disease to Analyze Progression, Biomarkers, and Trial Design. Mov Disord 2023; 38:1774-1785. [PMID: 37363815 PMCID: PMC10615710 DOI: 10.1002/mds.29519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/10/2023] [Accepted: 06/06/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND In Parkinson's disease (PD), gait and balance is impaired, relatively resistant to available treatment and associated with falls and disability. Predictive models of ambulatory progression could enhance understanding of gait/balance disturbances and aid in trial design. OBJECTIVES To predict trajectories of ambulatory abilities from baseline clinical data in early PD, relate trajectories to clinical milestones, compare biomarkers, and evaluate trajectories for enrichment of clinical trials. METHODS Data from two multicenter, longitudinal, observational studies were used for model training (Tracking Parkinson's, n = 1598) and external testing (Parkinson's Progression Markers Initiative, n = 407). Models were trained and validated to predict individuals as having a "Progressive" or "Stable" trajectory based on changes of ambulatory capacity scores from the Movement Disorders Society Unified Parkinson's Disease Rating Scale parts II and III. Survival analyses compared time-to-clinical milestones and trial outcomes between predicted trajectories. RESULTS On external evaluation, a support vector machine model predicted Progressive trajectories using baseline clinical data with an accuracy, weighted-F1 (proportionally weighted harmonic mean of precision and sensitivity), and sensitivity/specificity of 0.735, 0.799, and 0.688/0.739, respectively. Over 4 years, the predicted Progressive trajectory was more likely to experience impaired balance, loss of independence, impaired function and cognition. Baseline dopamine transporter imaging and select biomarkers of neurodegeneration were significantly different between predicted trajectory groups. For an 18-month, randomized (1:1) clinical trial, sample size savings up to 30% were possible when enrollment was enriched for the Progressive trajectory versus no enrichment. CONCLUSIONS It is possible to predict ambulatory abilities from clinical data that are associated with meaningful outcomes in people with early PD. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Charles S. Venuto
- Center for Health + Technology, University of Rochester, Rochester, NY, USA
- Department of Neurology, University of Rochester, Rochester, NY, USA
| | - Greta Smith
- Center for Health + Technology, University of Rochester, Rochester, NY, USA
| | - Konnor Herbst
- Center for Health + Technology, University of Rochester, Rochester, NY, USA
| | - Robert Zielinski
- Center for Health + Technology, University of Rochester, Rochester, NY, USA
- Department of Biostatistics, Brown University, Providence, RI, USA
| | - Norman C.W. Yung
- Center for Health + Technology, University of Rochester, Rochester, NY, USA
| | - Donald G. Grosset
- School of Neuroscience and Psychology, University of Glasgow, Glasgow, United Kingdom
| | - E. Ray Dorsey
- Center for Health + Technology, University of Rochester, Rochester, NY, USA
- Department of Neurology, University of Rochester, Rochester, NY, USA
| | - Karl Kieburtz
- Center for Health + Technology, University of Rochester, Rochester, NY, USA
- Department of Neurology, University of Rochester, Rochester, NY, USA
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Camicioli R, Morris ME, Pieruccini‐Faria F, Montero‐Odasso M, Son S, Buzaglo D, Hausdorff JM, Nieuwboer A. Prevention of Falls in Parkinson's Disease: Guidelines and Gaps. Mov Disord Clin Pract 2023; 10:1459-1469. [PMID: 37868930 PMCID: PMC10585979 DOI: 10.1002/mdc3.13860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 06/28/2023] [Accepted: 07/08/2023] [Indexed: 10/24/2023] Open
Abstract
Background People living with Parkinson's disease (PD) have a high risk for falls. Objective To examine gaps in falls prevention targeting people with PD as part of the Task Force on Global Guidelines for Falls in Older Adults. Methods A Delphi consensus process was used to identify specific recommendations for falls in PD. The current narrative review was conducted as educational background with a view to identifying gaps in fall prevention. Results A recent Cochrane review recommended exercises and structured physical activities for PD; however, the types of exercises and activities to recommend and PD subgroups likely to benefit require further consideration. Freezing of gait, reduced gait speed, and a prior history of falls are risk factors for falls in PD and should be incorporated in assessments to identify fall risk and target interventions. Multimodal and multi-domain fall prevention interventions may be beneficial. With advanced or complex PD, balance and strength training should be administered under supervision. Medications, particularly cholinesterase inhibitors, show promise for falls prevention. Identifying how to engage people with PD, their families, and health professionals in falls education and implementation remains a challenge. Barriers to the prevention of falls occur at individual, environmental, policy, and health system levels. Conclusion Effective mitigation of fall risk requires specific targeting and strategies to reduce this debilitating and common problem in PD. While exercise is recommended, the types and modalities of exercise and how to combine them as interventions for different PD subgroups (cognitive impairment, freezing, advanced disease) need further study.
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Affiliation(s)
- Richard Camicioli
- Department of Medicine (Neurology) and Neuroscience and Mental Health InstituteUniversity of AlbertaEdmontonAlbertaCanada
| | - Meg E. Morris
- La Trobe University, Academic and Research Collaborative in Health & HealthscopeMelbourneVictoriaAustralia
| | - Frederico Pieruccini‐Faria
- Gait and Brain Lab, Parkwood InstituteLawson Health Research InstituteLondonOntarioCanada
- Division of Geriatric Medicine, Department of Medicine, Schulich School of Medicine & DentistryWestern UniversityLondonOntarioCanada
| | - Manuel Montero‐Odasso
- Gait and Brain Lab, Parkwood InstituteLawson Health Research InstituteLondonOntarioCanada
- Division of Geriatric Medicine, Department of Medicine, Schulich School of Medicine & DentistryWestern UniversityLondonOntarioCanada
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & DentistryWestern UniversityLondonOntarioCanada
| | - Surim Son
- Gait and Brain Lab, Parkwood InstituteLawson Health Research InstituteLondonOntarioCanada
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & DentistryWestern UniversityLondonOntarioCanada
| | - David Buzaglo
- Center for the Study of Movement, Cognition and Mobility, Neurological InstituteTel Aviv Sourasky Medical CenterTel AvivIsrael
| | - Jeffrey M. Hausdorff
- Center for the Study of Movement, Cognition and Mobility, Neurological InstituteTel Aviv Sourasky Medical CenterTel AvivIsrael
- Department of Physical Therapy, Faculty of Medicine, Sagol School of NeuroscienceTel Aviv UniversityTel AvivIsrael
- Rush Alzheimer's Disease Center and Department of Orthopedic SurgeryRush University Medical CenterChicagoIllinoisUSA
| | - Alice Nieuwboer
- Department of Rehabilitation Sciences, Neurorehabilitation Research Group (eNRGy)KU LeuvenLeuvenBelgium
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Nouriani A, Jonason A, Sabal LT, Hanson JT, Jean JN, Lisko T, Reid E, Moua Y, Rozeboom S, Neverman K, Stowe C, Rajamani R, McGovern RA. Real world validation of activity recognition algorithm and development of novel behavioral biomarkers of falls in aged control and movement disorder patients. Front Aging Neurosci 2023; 15:1117802. [PMID: 36909945 PMCID: PMC9995757 DOI: 10.3389/fnagi.2023.1117802] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 01/31/2023] [Indexed: 02/25/2023] Open
Abstract
The use of wearable sensors in movement disorder patients such as Parkinson's disease (PD) and normal pressure hydrocephalus (NPH) is becoming more widespread, but most studies are limited to characterizing general aspects of mobility using smartphones. There is a need to accurately identify specific activities at home in order to properly evaluate gait and balance at home, where most falls occur. We developed an activity recognition algorithm to classify multiple daily living activities including high fall risk activities such as sit to stand transfers, turns and near-falls using data from 5 inertial sensors placed on the chest, upper-legs and lower-legs of the subjects. The algorithm is then verified with ground truth by collecting video footage of our patients wearing the sensors at home. Our activity recognition algorithm showed >95% sensitivity in detection of activities. Extracted features from our home monitoring system showed significantly better correlation (~69%) with prospectively measured fall frequency of our subjects compared to the standard clinical tests (~30%) or other quantitative gait metrics used in past studies when attempting to predict future falls over 1 year of prospective follow-up. Although detecting near-falls at home is difficult, our proposed model suggests that near-fall frequency is the most predictive criterion in fall detection through correlation analysis and fitting regression models.
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Affiliation(s)
- Ali Nouriani
- Laboratory for Innovations in Sensing, Estimation and Control, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, United States
| | - Alec Jonason
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Luke T Sabal
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Jacob T Hanson
- Rocky Vista University College of Osteopathic Medicine, Parker, CO, United States
| | - James N Jean
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Thomas Lisko
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Emma Reid
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Yeng Moua
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Shane Rozeboom
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Kaiser Neverman
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Casey Stowe
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Rajesh Rajamani
- Laboratory for Innovations in Sensing, Estimation and Control, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, United States
| | - Robert A McGovern
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN, United States.,Division of Neurosurgery, Minneapolis Veterans Affairs Health Care System, Minneapolis, MN, United States
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Liu X, Abudukeremu A, Jiang Y, Cao Z, Wu M, Zheng K, Ma J, Sun R, Chen Z, Chen Y, Zhang Y, Wang J. Association of motor index scores with fall incidence among community-dwelling older people. BMC Geriatr 2022; 22:1008. [PMID: 36585625 PMCID: PMC9805168 DOI: 10.1186/s12877-022-03680-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 12/06/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Several kinds of motor dysfunction have been studied for predicting future fall risk in community-dwelling older individuals. However, no study has tested the ability of the fine motor index (FINEA) and gross motor index (GROSSA) to predict the risk of falling, as well as the specific fall type. OBJECTIVE We investigated the associations of FINEA/GROSSA scores with fall risk, explained falls, and unexplained falls. METHODS A total of 6267 community-dwelling adults aged ≥ 50 years from the Irish Longitudinal Study on Aging (TILDA) cohort were included. First, the associations of FINEA and GROSSA scores with the history of total falls, explained falls and unexplained falls were assessed in a cross-sectional study and further verified in a prospective cohort after 2 years of follow-up by Poisson regression analysis. RESULTS We found that high FINEA and GROSSA scores were positively associated with almost all fall histories (FINEA scores: total falls: adjusted prevalence ratio [aPR] = 1.28, P = 0.009; explained falls: aPR = 1.15, P = 0.231; unexplained falls: aPR = 1.88, P < 0.001; GROSSA scores: total falls: aPR = 1.39, P < 0.001; explained falls: aPR = 1.28, P = 0.012; unexplained falls: aPR = 2.18, P < 0.001) in a cross-sectional study. After 2 years of follow-up, high FINEA scores were associated with an increased incidence of total falls (adjusted rate ratio [aRR] = 1.42, P = 0.016) and explained falls (aRR = 1.51, P = 0.020) but not with unexplained falls (aRR = 1.41, P = 0.209). High GROSSA scores were associated with an increased incidence of unexplained falls (aRR = 1.57, P = 0.041) and were not associated with either total falls (aRR = 1.21, P = 0.129) or explained falls (aRR = 1.07, P = 0.656). Compared with individuals without limitations in either the FINEA or GROSSA, individuals with limitations in both indices had a higher risk of falls, including total falls (aRR = 1.35, P = 0.002), explained falls (aRR = 1.31, P = 0.033) and unexplained falls (aRR = 1.62, P = 0.004). CONCLUSION FINEA scores were positively associated with accidental falls, while GROSSA scores were positively associated with unexplained falls. The group for whom both measures were impaired showed a significantly higher risk of both explained and unexplained falls. FINEA or GROSSA scores should be investigated further as possible tools to screen for and identify community-dwelling adults at high risk of falling.
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Affiliation(s)
- Xiao Liu
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ayiguli Abudukeremu
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yuan Jiang
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhengyu Cao
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Maoxiong Wu
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Kai Zheng
- Medical Care Strategic Customer Department, China Merchants Bank Shenzhen Branch, Shenzhen, China
| | - Jianyong Ma
- grid.24827.3b0000 0001 2179 9593Department of Pharmacology and Systems Physiology University of Cincinnati College of Medicine, Cincinnati, USA
| | - Runlu Sun
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhiteng Chen
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yangxin Chen
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yuling Zhang
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jingfeng Wang
- grid.412536.70000 0004 1791 7851Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China ,grid.412536.70000 0004 1791 7851Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
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Feasibility of Combining Disease-Specific and Balance-Related Measures as Risk Predictors of Future Falls in Patients with Parkinson's Disease. J Clin Med 2022; 12:jcm12010127. [PMID: 36614927 PMCID: PMC9821540 DOI: 10.3390/jcm12010127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 12/18/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Evidence supports the view that postural sway in a quiet stance increases with clinical disease severity and dopaminergic therapy in idiopathic Parkinson’s disease (PD), which, in turn, increases the risk of falling. This study evaluated the feasibility of combining disease-specific and balance-related measures as risk predictors for future falls in patients with PD. The patients with PD underwent postural sway measurements (area, length, and velocity traveled by the excursion of the center of pressure) and clinical functional scores (Parkinson’s Disease Rating Scale [UPDRS] and Tinetti balance and gait score assessment) in both the on- and off-states of dopaminergic therapy. The outcome was defined as the development of a new fall. The sway area, velocity, and length increased after the medication administration. The Cox proportional hazards model showed that only previous fall history, Tinetti balance and gait score (on-state), and levodopa equivalent daily dose (LEDD) were associated with the development of future falls. The cumulative risk of fall development showed that the sway length and velocity were associated with future falls after more than six months. The combined LEDD, Tinetti balance and gait score (on-state), and velocity and length of postural sway (on-state) had the highest diagnostic accuracy (area under the curve = 0.9, p < 0.0001). Dopaminergic therapy can improve clinical functional scores but worsen balance-related measures. Increased sway length and velocity during the medication state are hallmarks of future falls, particularly in advanced PD. Combining disease-specific and balance-related measures can serve as an auxiliary diagnosis as risk predictors for future falls.
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Rider JV, Longhurst JK, Lekhak N, Navalta JW, Young DL, Landers MR. Psychological Factors Associated With Fear of Falling Avoidance Behavior in Parkinson's Disease: The Role of Depression, Anxiety, and Catastrophizing. J Geriatr Psychiatry Neurol 2022; 36:215-224. [PMID: 35977708 DOI: 10.1177/08919887221119974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE The purpose of this study was to examine the relationship between psychological factors (depression, anxiety, and catastrophizing) and fear of falling avoidance behavior (FFAB) among individuals with Parkinson's disease (PD). METHODS A secondary analysis of cross-sectional data from 59 individuals with PD using hierarchical multiple regression. RESULTS Disease severity (Movement Disorder Society - Unified PD Rating Scale) and catastrophizing (Consequences of Falling Questionnaire (CoF)) explained approximately 48.2% of the variance in the FFAB Questionnaire scores (P < .001). Catastrophizing was the only significant psychological variable (P < .001). The damage to identity subscale of the CoF was significant in the final model (P < .001). CONCLUSIONS Catastrophizing about the consequences of falls explained the largest portion of variability in FFAB after controlling for disease severity. Catastrophizing about the immediate consequences of falling may play a prominent role in FFAB and may be a potential treatment target for mitigating FFAB.
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Affiliation(s)
- John V Rider
- School of Occupational Therapy, College of Health and Human Services, Touro University Nevada, Henderson, NV.,Department of Physical Therapy, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV
| | - Jason K Longhurst
- Department of Physical Therapy and Athletic Training, Saint Louis University, MO
| | | | - James W Navalta
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV
| | - Daniel L Young
- Department of Physical Therapy, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV
| | - Merrill R Landers
- Department of Physical Therapy, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV
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11
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Choi A, Kim TH, Yuhai O, Jeong S, Kim K, Kim H, Mun JH. Deep Learning-Based Near-Fall Detection Algorithm for Fall Risk Monitoring System Using a Single Inertial Measurement Unit. IEEE Trans Neural Syst Rehabil Eng 2022; 30:2385-2394. [PMID: 35969550 DOI: 10.1109/tnsre.2022.3199068] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Proactively detecting falls and preventing injuries are among the primary keys to a healthy life for the elderly. Near-fall remote monitoring in daily life could provide key information to prevent future falls and obtain quantitative rehabilitation status for patients with weak balance ability. In this study, we developed a deep learning-based novel classification algorithm to precisely categorize three classes (falls, near-falls, and activities of daily living (ADLs)) using a single inertial measurement unit (IMU) device attached to the waist. A total of 34 young participants were included in this study. An IMU containing accelerometer and gyroscope sensors was fabricated to acquire acceleration and angular velocity signals. A comprehensive experiment including thirty-six types of activities (10 types of falls, 10 types of near-falls, and 16 types of ADLs) was designed based on previous studies. A modified directed acyclic graph-convolution neural network (DAG-CNN) architecture with hyperparameter optimization was proposed to predict fall, near-fall, and ADLs. Prediction results of the modified DAG-CNN structure were found to be approximately 7% more accurate than the traditional CNN structure. For the case of near-falls, the modified DAG-CNN demonstrated excellent prediction performance with accuracy of over 98% by combining gyroscope and accelerometer features. Additionally, by combining acceleration and angular velocity the trained model showed better performance than each model of acceleration and angular velocity. It is believed that information to preemptively handle the risk of falls and quantitatively evaluate the rehabilitation status of the elderly with weak balance will be provided by monitoring near-falls.
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12
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Scholz K, Geritz J, Kudelka J, Rogalski M, Niemann K, Maetzler C, Welzel J, Drey M, Prell T, Maetzler W. Static Balance and Chair-Rise Performance in Neurogeriatric Patients: Promising Short Physical Performance Battery-Derived Predictors of Fear of Falling. Front Med (Lausanne) 2022; 9:904364. [PMID: 35801210 PMCID: PMC9253572 DOI: 10.3389/fmed.2022.904364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/01/2022] [Indexed: 11/13/2022] Open
Abstract
Background Fear of falling (FOF) negatively affects health-related quality of life and is common in neurogeriatric patients, however, related parameters are not well understood. This study investigated the relationship between FOF, physical performance (as assessed with the Short Physical Performance Battery and its subscores) and other aspects of sarcopenia in a sample of hospitalized neurogeriatric patients. Methods In 124 neurogeriatric patients, FOF was assessed with the Falls Efficacy Scale International (FES-I). Physical performance was measured using the Short Physical Performance Battery (SPPB) including walking duration, balance and five times sit-to-stand task (5xSST) subscores. Appendicular skeletal muscle mass (ASMM) was estimated with the cross-validated Sergi equation using Bioelectrical impedance analysis measures. The Depression im Alter-Skala (DIA-S) was used to assess depressive symptoms. Multiple regression models with FES-I score as outcome variable were computed using backward selection with AICc as selection criterion, including: (i) SPPB total score, ASMM/height2, grip strength, age, gender, positive fall history, number of medications, use of a walking aid, DIA-S score and Montreal Cognitive Assessment (MoCA) score; and (ii) SPPB subscores, ASMM/height2, grip strength, age, gender, positive fall history, number of medications, DIA-S score and MoCA score, once with and once without including use of a walking aid as independent variable. Results Lower SPPB total score, as well as lower SPPB balance and 5xSST subscores were associated with higher FES-I scores, but SPPB walking duration subscore was not. Moreover, DIA-S, number of medications and use of a walking aid were significantly associated with FOF. Conclusion Our preliminary results suggest that -if confirmed by subsequent studies- it may be worthwhile to screen patients with low SPPB balance and 5xSST subscores for FOF, and to treat especially these mobility deficits in neurogeriatric patients with FOF. Moreover, training neurogeriatric patients to use their walking aids correctly, critical evaluation of medication and treating depressive symptoms may further help reduce FOF in this highly vulnerable cohort.
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Affiliation(s)
- Katharina Scholz
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Johanna Geritz
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Jennifer Kudelka
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Marten Rogalski
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Katharina Niemann
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Corina Maetzler
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Julius Welzel
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Michael Drey
- Department of Medicine IV, Geriatrics, University Hospital of LMU Munich, Munich, Germany
| | - Tino Prell
- Department of Geriatrics, Halle University Hospital, Halle, Germany
| | - Walter Maetzler
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
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Review of Active Extracorporeal Medical Devices to Counteract Freezing of Gait in Patients with Parkinson Disease. Healthcare (Basel) 2022; 10:healthcare10060976. [PMID: 35742027 PMCID: PMC9222598 DOI: 10.3390/healthcare10060976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/09/2022] [Accepted: 05/17/2022] [Indexed: 02/01/2023] Open
Abstract
Parkinson Disease (PD) primarily affects older adults. It is the second-most common neurodegenerative disease after Alzheimer’s disease. Currently, more than 10 million people suffer from PD, and this number is expected to grow, considering the increasing global longevity. Freezing of Gait (FoG) is a symptom present in approximately 80% of advanced-stage PD’s patients. FoG episodes alter the continuity of gait, and may be the cause of falls that can lead to injuries and even death. The recent advances in the development of hardware and software systems for the monitoring, stimulus, or rehabilitation of patients with FoG has been of great interest to researchers because detection and minimization of the duration of FoG events is an important factor in improving the quality of life. This article presents a review of the research on non-invasive medical devices for FoG, focusing on the acquisition, processing, and stimulation approaches used.
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Mylius V, Maes L, Negele K, Schmid C, Sylvester R, Brook CS, Brugger F, Perez-Lloret S, Bansi J, Aminian K, Paraschiv-Ionescu A, Gonzenbach R, Brugger P. Dual-Task Treadmill Training for the Prevention of Falls in Parkinson's Disease: Rationale and Study Design. FRONTIERS IN REHABILITATION SCIENCES 2022; 2:774658. [PMID: 36188827 PMCID: PMC9397829 DOI: 10.3389/fresc.2021.774658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 12/22/2021] [Indexed: 11/13/2022]
Abstract
Various factors, such as fear of falling, postural instability, and altered executive function, contribute to the high risk of falling in Parkinson's disease (PD). Dual-task training is an established method to reduce this risk. Motor-perceptual task combinations typically require a patient to walk while simultaneously engaging in a perceptual task. Motor-executive dual-tasking (DT) combines locomotion with executive function tasks. One augmented reality treadmill training (AR-TT) study revealed promising results of a perceptual dual-task training with a markedly reduced frequency of falls especially in patients with PD. We here propose to compare the effects of two types of concurrent tasks, perceptual and executive, on high-intensity TT). Patients will be trained with TT alone, in combination with an augmented reality perceptual DT (AR-TT) or with an executive DT (Random Number Generation; RNG-TT). The results are expected to inform research on therapeutic strategies for the training of balance in PD.
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Affiliation(s)
- Veit Mylius
- Department of Neurology, Center for Neurorehabilitation, Valens, Switzerland
- Department of Neurology, Philipps University, Marburg, Germany
- Department of Neurology, Kantonsspital St. Gallen, St. Gallen, Switzerland
- *Correspondence: Veit Mylius
| | - Laura Maes
- Department of Neurology, Center for Neurorehabilitation, Valens, Switzerland
| | - Katrin Negele
- Department of Neurology, Center for Neurorehabilitation, Valens, Switzerland
| | - Christine Schmid
- Department of Neurology, Center for Neurorehabilitation, Valens, Switzerland
| | - Ramona Sylvester
- Department of Neurology, Center for Neurorehabilitation, Valens, Switzerland
| | | | - Florian Brugger
- Department of Neurology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Santiago Perez-Lloret
- Biomedical Research Center (CAECIHS-UAI), National Research Council (CONICET), Buenos Aires, Argentina
- Facultad de Medicina, Pontificia Universidad Católica Argentina, Buenos Aires, Argentina
- Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Jens Bansi
- Department of Neurology, Center for Neurorehabilitation, Valens, Switzerland
- Department of Health, Physiotherapy, OST–Eastern Swiss University of Applied Sciences, St. Gallen, Switzerland
| | - Kamiar Aminian
- Laboratory of Movement Analysis and Measurement, EPFL, Lausanne, Switzerland
| | | | - Roman Gonzenbach
- Department of Neurology, Center for Neurorehabilitation, Valens, Switzerland
| | - Peter Brugger
- Department of Neurology, Center for Neurorehabilitation, Valens, Switzerland
- Department of Psychiatry, University of Zurich, Zurich, Switzerland
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15
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Landers MR, Nilsson MH. A theoretical framework for addressing fear of falling avoidance behavior in Parkinson's disease. Physiother Theory Pract 2022; 39:895-911. [PMID: 35180834 DOI: 10.1080/09593985.2022.2029655] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Postural instability in Parkinson's disease (PD) is associated with several downstream consequences that ultimately lead to a greater risk of falling. Among the prominent downstream consequences is fear of falling (FOF), which is both common and problematic in PD. It can lead to a vicious cycle of FOF avoidance behavior that results in more sedentary behavior, physical deconditioning, and weakening of already impaired balance systems. This, in turn, may make the person with PD more susceptible to a future fall even with benign daily tasks. While FOF activity avoidance can be adaptive (appropriate), it can also be maladaptive (inappropriate or exaggerated). When this adaptive and maladaptive FOF avoidance behavior is contextualized to gait/balance performance, it provides a theoretical framework that can be used by clinicians to match patterns of behavior to a concordant treatment approach. In the theoretical framework proposed in this perspective, four different patterns related to FOF avoidance behavior and gait/balance performance are suggested: appropriate avoiders, appropriate non-avoiders, inappropriate avoiders, and inappropriate non-avoiders. For each of the four FOF avoidance behavior patterns, this paper also provides suggested treatment focuses, approaches and recommendations.
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Affiliation(s)
- Merrill R Landers
- Department of Physical Therapy, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV, USA
| | - Maria H Nilsson
- Department of Health Sciences, Lund University, Lund, Sweden.,Clinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
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Atrsaei A, Hansen C, Elshehabi M, Solbrig S, Berg D, Liepelt-Scarfone I, Maetzler W, Aminian K. Effect of Fear of Falling on Mobility Measured During Lab and Daily Activity Assessments in Parkinson's Disease. Front Aging Neurosci 2021; 13:722830. [PMID: 34916920 PMCID: PMC8669821 DOI: 10.3389/fnagi.2021.722830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/21/2021] [Indexed: 12/24/2022] Open
Abstract
In chronic disorders such as Parkinson’s disease (PD), fear of falling (FOF) is associated with falls and reduced quality of life. With inertial measurement units (IMUs) and dedicated algorithms, different aspects of mobility can be obtained during supervised tests in the lab and also during daily activities. To our best knowledge, the effect of FOF on mobility has not been investigated in both of these settings simultaneously. Our goal was to evaluate the effect of FOF on the mobility of 26 patients with PD during clinical assessments and 14 days of daily activity monitoring. Parameters related to gait, sit-to-stand transitions, and turns were extracted from IMU signals on the lower back. Fear of falling was assessed using the Falls Efficacy Scale-International (FES-I) and the patients were grouped as with (PD-FOF+) and without FOF (PD-FOF−). Mobility parameters between groups were compared using logistic regression as well as the effect size values obtained using the Wilcoxon rank-sum test. The peak angular velocity of the turn-to-sit transition of the timed-up-and-go (TUG) test had the highest discriminative power between PD-FOF+ and PD-FOF− (r-value of effect size = 0.61). Moreover, PD-FOF+ had a tendency toward lower gait speed at home and a lower amount of walking bouts, especially for shorter walking bouts. The combination of lab and daily activity parameters reached a higher discriminative power [area under the curve (AUC) = 0.75] than each setting alone (AUC = 0.68 in the lab, AUC = 0.54 at home). Comparing the gait speed between the two assessments, the PD-FOF+ showed higher gait speeds in the capacity area compared with their TUG test in the lab. The mobility parameters extracted from both lab and home-based assessments contribute to the detection of FOF in PD. This study adds further evidence to the usefulness of mobility assessments that include different environments and assessment strategies. Although this study was limited in the sample size, it still provides a helpful method to consider the daily activity measurement of the patients with PD into clinical evaluation. The obtained results can help the clinicians with a more accurate prevention and treatment strategy.
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Affiliation(s)
- Arash Atrsaei
- Laboratory of Movement Analysis and Measurement, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Clint Hansen
- Department of Neurology, UKSH, Christian-Albrechts-University, Kiel, Germany
| | - Morad Elshehabi
- Department of Neurology, UKSH, Christian-Albrechts-University, Kiel, Germany
| | - Susanne Solbrig
- Department of Neurodegeneration, Center for Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.,German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - Daniela Berg
- Department of Neurology, UKSH, Christian-Albrechts-University, Kiel, Germany.,Department of Neurodegeneration, Center for Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.,German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - Inga Liepelt-Scarfone
- Department of Neurodegeneration, Center for Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.,German Center for Neurodegenerative Diseases, Tübingen, Germany.,IB-Hochschule, Stuttgart, Germany
| | - Walter Maetzler
- Department of Neurology, UKSH, Christian-Albrechts-University, Kiel, Germany
| | - Kamiar Aminian
- Laboratory of Movement Analysis and Measurement, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
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Callais Franco do Nascimento T, Martins Gervásio F, Pignolo A, Augusto Santos Bueno G, Araújo do Carmo A, Martins Ribeiro D, D’Amelio M, Augusto dos Santos Mendes F. Assessment of the Kinematic Adaptations in Parkinson's Disease Using the Gait Profile Score: Influences of Trunk Posture, a Pilot Study. Brain Sci 2021; 11:1605. [PMID: 34942907 PMCID: PMC8699192 DOI: 10.3390/brainsci11121605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/29/2021] [Accepted: 11/29/2021] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION Postural abnormalities are common in patients with Parkinson's disease (PD) and lead to gait abnormalities. Relationships between changes in the trunk posture of PD patients and gait profile score (GPS) and gait spatiotemporal parameters are poorly investigated. The aim of the current study was to investigate the relationships between trunk posture, GPS, and gait spatiotemporal parameters, in patients with PD. MATERIALS AND METHODS Twenty-three people with PD and nineteen age-matched healthy people participated in this study. A 3D gait kinematical analysis was applied to all participants using the Plug-In Gait Full BodyTM tool. Trunk and limb kinematics patterns and gait spatio-temporal parameters of patients with PD and the control group were compared. Additionally, correlations between trunk kinematics patterns, gait spatio-temporal parameters, and GPS of the PD group were tested. RESULTS Cadence, opposite foot off, step time, single support, double support, foot off, gait speed, trunk kinematics, and GPS showed significant differences between the two groups (p ≤ 0.05). Posture of the trunk during gait was not related to the spatio-temporal parameters and gait profile score in the PD group. The trunk flexor pattern influenced GPS domains, mainly of the ankle and the knee. DISCUSSION AND CONCLUSIONS Flexed posture of the trunk in patients with PD seems to influence both ankle and knee movement patterns during the gait. The GPS analysis provided direct and simplified kinematic information for the PD group. These results may have implications for understanding the importance of considering the positioning of the trunk during gait.
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Affiliation(s)
- Tauana Callais Franco do Nascimento
- Graduate Program in Rehabilitation Sciences, University of Brasília, Federal District, Brasília 72220-275, DF, Brazil; (T.C.F.d.N.); (F.A.d.S.M.)
| | - Flavia Martins Gervásio
- Department of Physiotherapy and Physical Education, College of Sport, State University of Goiás, Goiânia 74075-110, GO, Brazil;
| | - Antonia Pignolo
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, 90129 Palermo, Italy;
| | - Guilherme Augusto Santos Bueno
- Graduate Program in Sciences and Health Technologies, University of Brasília, Federal District, Brasília 72220-275, DF, Brazil;
| | - Aline Araújo do Carmo
- Department of Physiotherapy, University of Brasília, Federal District, Brasília 72220-275, DF, Brazil;
| | - Darlan Martins Ribeiro
- Henrique Santillo State Center of Rehabilitation and Readaptation, Goiânia 74653-230, GO, Brazil;
| | - Marco D’Amelio
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, 90129 Palermo, Italy;
| | - Felipe Augusto dos Santos Mendes
- Graduate Program in Rehabilitation Sciences, University of Brasília, Federal District, Brasília 72220-275, DF, Brazil; (T.C.F.d.N.); (F.A.d.S.M.)
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Clinical Usefulness of Retropulsion Tests in Persons with Mild to Moderate Parkinson's Disease. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182312325. [PMID: 34886051 PMCID: PMC8656501 DOI: 10.3390/ijerph182312325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 11/16/2022]
Abstract
People with Parkinson's disease (PwPD) have an increased risk for falls and near falls. They have particular difficulties with maintaining balance against an external perturbation, and several retropulsion tests exist. The Unified PD Rating Scale item 30 (UPDRS30) is the most common, involving an expected shoulder pull. Others recommend using an unexpected shoulder pull, e.g., the Nutt Retropulsion Test (NRT). We aimed to evaluate the clinical usefulness of these tests for detecting future fallers. By using two different golden standards related to self-reported prospective falls and near falls over 6 months following two different time points with 3.5 years between, we estimated sensitivity/specificity, Youden index, predictive values, and likelihood ratios for each test. The different time points yielded a different prevalence of falls and near falls, as well as different predictive values. When comparing the performance of the NRT and UPDRS30 for detecting future fallers, we found that the NRT consistently performed better than UPDRS30. However, neither test exhibited optimal performance in terms of predictive values and associated likelihood ratios. Our findings speak against using either of these tests as a single assessment for this purpose and support previous recommendations of using a multifactorial approach when targeting balance problems in PwPD.
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Harris DM, Duckham RL, Daly RM, Abbott G, Johnson L, Rantalainen T, Teo WP. Development of a Parkinson's disease specific falls questionnaire. BMC Geriatr 2021; 21:614. [PMID: 34717574 PMCID: PMC8557480 DOI: 10.1186/s12877-021-02555-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 10/14/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Falls are a major health burden for older adults with Parkinson's disease (PD), but there is currently no reliable questionnaire to capture the circumstances and consequences of falls in older adults with PD. This study aimed to develop a PD-specific falls questionnaire and to evaluate its test-retest reliability in older adults with PD. METHODS A novel PD-specific falls questionnaire (PDF-Q) was developed in two modes (online and paper-based version) and used to assess falls and near-falls events over the past 12-months. Questions were agreed upon by an expert group, with the domains based on previous falls-related questionnaires. The questions included the number and circumstances (activities, location and direction) of falls and near-falls, and consequences (injuries and medical treatment) of falls. The PDF-Q was distributed to 46 older adults with PD (online n = 30, paper n = 16), who completed the questionnaire twice, 4 weeks apart. Kappa (κ) statistics were used to establish test-retest reliability of the questionnaire items. RESULTS Pooled results from both questionnaires for all participants were used to assess the overall test-retest reliability of the questionnaire. Questions assessing the number of falls (κ = 0.41) and the number of near-falls (κ = 0.51) in the previous 12-months demonstrated weak agreement, while questions on the location of falls (κ = 0.89) and near-falls (κ = 1.0) demonstrated strong to almost perfect agreement. Questions on the number of indoor (κ = 0.86) and outdoor (κ = 0.75) falls demonstrated moderate to strong agreement, though questions related to the number of indoor (κ = 0.47) and outdoor (κ = 0.56) near-falls demonstrated weak agreement. Moderate to strong agreement scores were observed for the most recent fall and near-fall in terms of the direction (indoor fall κ = 0.80; outdoor fall κ = 0.81; near-fall κ = 0.54), activity (indoor fall κ = 0.70; outdoor fall κ = 0.82; near-fall κ = 0.65) and cause (indoor fall κ = 0.75; outdoor fall κ = 0.62; near-fall κ = 0.56). CONCLUSIONS The new PDF-Q developed in this study was found to be reliable for capturing the circumstances and consequences of recent falls and near-falls in older adults with PD.
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Affiliation(s)
- Dale M Harris
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia.
- First Year College, Victoria University, Melbourne, Australia.
| | - Rachel L Duckham
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Department of Medicine-Western Health, University of Melbourne, St Albans, VIC, 3021, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, 3021, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Gavin Abbott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Liam Johnson
- Physiotherapy Department, Epworth HealthCare, Melbourne, Australia
- School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, Australia
| | - Timo Rantalainen
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Faculty of Sport and Health Sciences and Gerontology Research Center, University of Jyväskylä, Jyväskylä, Finland
| | - Wei-Peng Teo
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
- Physical Education and Sports Science Academic Group, National Institute of Education, Nanyang Technological University, Singapore, Singapore
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Prevalence of freezing of gait in Parkinson's disease: a systematic review and meta-analysis. J Neurol 2021; 268:4138-4150. [PMID: 34236501 DOI: 10.1007/s00415-021-10685-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Freezing of gait (FOG) is considered one of the most disturbing and least understood symptoms in Parkinson's disease (PD). The reported prevalence rates of FOG in PD vary widely, ranging from 5 to 85.9%. OBJECTIVE We conducted a systematic review and meta-analysis to provide a reliable estimate of the average point prevalence of FOG in PD, and we further investigated the study characteristics that might have influenced the estimate. METHODS We searched different databases to identify studies that report the prevalence of FOG in PD or include relevant raw data for further calculation. The last inclusion date was February 20, 2020. The modified Quality Assessment of Diagnostic Accuracy Studies (QUADAS) tool was used for the quality assessment, and articles that met the predefined criteria were included in the quantitative analysis. RESULTS Sixty-six studies were selected from 3392 references. A weighted prevalence of 50.6% in 9072 PD patients experienced FOG based on the special questionnaires (the FOG-Q and NFOG-Q), which was about twice as high as that assessed by the specific items of the clinical rating scales (UPDRS item2.14 and MDS-UPDRS item3.11) (23.2%) or simple clinical questions (25.4%). The weighted prevalence was 37.9% for early stage (≤ 5 years) and 64.6% for advanced stage (≥ 9 years). Moreover, a higher prevalence was calculated from the population-based studies than that in multicenter and single-center studies (47.3% vs. 33.5% and 37.1%, respectively). CONCLUSION The result from this systematic review confirms that FOG is very common in PD and its prevalence is usually underestimated in hospital settings. Importantly, a more accurate assessment of FOG in future clinical researches would involve the use of special FOG scale rather than a single item on a scale or a general clinical inquiry.
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Khalil H, Alissa N, Al-Sharman A, E'leimat I, Majdi Al Qawasmeh, El-Salem K. Understanding the influence of pain and fatigue on physical performance, fear of falling and falls in people with Parkinson's disease: a pilot study. Neurodegener Dis Manag 2021; 11:113-124. [PMID: 33730860 DOI: 10.2217/nmt-2020-0053] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Objective: Pain and fatigue are highly prevalent debilitating symptoms in Parkinson's disease (PD), however, their relationship with physical performance, fear of falling (FOF) and falls is not clear. We aim in this pilot study to investigate the relationship of pain and fatigue with physical performance, FOF and falls in people with Parkinson's disease (PwPD). Materials & methods: 53 PD patients were assessed for fall history, physical performance, FOF, pain and fatigue. Results: Pain and fatigue are significantly associated with physical performance and FOF (p ≤ 0.002). Pain and fatigue were different between fallers and non-fallers (p < 0.5), but only fatigue could distinguish fallers from non-fallers (area under the receiver operating characteristics curve = 0.81; p < 0.0001). Conclusion: This pilot study indicated that FOF in PwPD is significantly associated with pain and fatigue. Furthermore, fatigue level is related to fall history. By addressing pain and fatigue, we may ameliorate the deterioration of FOF and falls in PwPD.
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Affiliation(s)
- Hanan Khalil
- Department of Rehabilitation Sciences, Jordan University of Science & Technology, Faculty of Applied Medical Sciences, Irbid, Jordan
| | - Nesreen Alissa
- School of Medicine, Department of Physical Therapy & Rehabilitation Science, University of Maryland, Baltimore, Baltimore, Maryland
| | - Alham Al-Sharman
- Department of Rehabilitation Sciences, Jordan University of Science & Technology, Faculty of Applied Medical Sciences, Irbid, Jordan
| | - Islam E'leimat
- Faculty of Medicine, Department of Neurosciences, Jordan University of Science & Technology, Irbid, Jordan
| | - Majdi Al Qawasmeh
- Faculty of Medicine, Department of Neurosciences, Jordan University of Science & Technology, Irbid, Jordan
| | - Khalid El-Salem
- Faculty of Medicine, Department of Neurosciences, Jordan University of Science & Technology, Irbid, Jordan
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Predictive Factors of Fall-Related Activity Avoidance in People With Parkinson Disease-A Longitudinal Study With a 3-Year Follow-up. J Neurol Phys Ther 2021; 44:188-194. [PMID: 32516298 DOI: 10.1097/npt.0000000000000316] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND PURPOSE Knowledge of predictive factors can foster the development of preventive approaches. This study examined how prevalence and severity of fall-related activity avoidance evolve over a 3-year period in people with Parkinson disease (PD). A specific aim was to identify predictive factors of fall-related activity avoidance (ie, modified Survey of Activities and Fear of Falling in the Elderly [mSAFFE] scores) after 3 years. METHODS The sample included 151 people with PD (mean [SD] age: 68 [8.8] years). The mSAFFE score was the dependent variable in multivariable linear regression analyses, with 17 potential predictors. On the basis of a collinearity check, 2 models studying various risk factors were developed. Model 1 included concerns about falling and model 2 walking difficulties. RESULTS After 3 years, more participants reported fall-related activity avoidance, that is, 34% versus 50% (P < 0.001). Regression model 1 explained 63% of the variance. The strongest predictive factor was concerns about falling (standardized regression coefficient, β = 0.589), followed by pain (β = 0.161), unsteadiness while turning (β = 0.137), and age (β = 0.136). These variables remained significant when adjusting for mSAFFE baseline scores.In model 2 (explained 50% of the variance), the strongest predictive factor was perceived walking difficulties (β = 0.392), followed by age (β = 0.238), unsteadiness while turning (β = 0.198), and pain (β = 0.184). Unlike the other factors, walking difficulties were not significant when adjusting for mSAFFE baseline scores. DISCUSSION AND CONCLUSIONS Fall-related activity avoidance increased over time in people with PD. If fall-related activity avoidance is to be targeted, this study suggests that interventions should address concerns about falling, pain, unsteadiness while turning, and walking difficulties.Video Abstract available for more insights from the authors (see Video, Supplemental Digital Content 1, http://links.lww.com/JNPT/A310).
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Longitudinal prediction of falls and near falls frequencies in Parkinson's disease: a prospective cohort study. J Neurol 2020; 268:997-1005. [PMID: 32970193 PMCID: PMC7914172 DOI: 10.1007/s00415-020-10234-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 11/05/2022]
Abstract
Introduction and objective Several prediction models for falls/near falls in Parkinson’s disease (PD) have been proposed. However, longitudinal predictors of frequency of falls/near falls are poorly investigated. Therefore, we aimed to identify short- and long-term predictors of the number of falls/near falls in PD. Methods A prospective cohort of 58 persons with PD was assessed at baseline (mean age and PD duration, 65 and 3.2 years, respectively) and 3.5 years later. Potential predictors were history of falls and near falls, comfortable gait speed, freezing of gate, dyskinesia, retropulsion, tandem gait (TG), pain, and cognition (Mini-Mental State Exam, MMSE). After each assessment, the participants registered a number of falls/near falls during the following 6 months. Multivariate Poisson regression was used to identify short- and long-term predictors of a number of falls/near falls. Results Baseline median (q1–q3) motor (UPDRS) and MMSE scores were 10 (6.75–14) and 28.5 (27–29), respectively. History of falls was the only significant short-time predictor [incidence rate ratio (IRR), 15.17] for the number of falls/near falls during 6 months following baseline. Abnormal TG (IRR, 3.77) and lower MMSE scores (IRR, 1.17) were short-term predictors 3.5 years later. Abnormal TG (IRR, 7.79) and lower MMSE scores (IRR, 1.49) at baseline were long-term predictors of the number of falls/near falls 3.5 years later. Conclusion Abnormal TG and MMSE scores predict the number of falls/near falls in short and long term, and may be indicative of disease progression. Our observations provide important additions to the evidence base for clinical fall prediction in PD.
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Lopes LKR, Scianni AA, Lima LO, de Carvalho Lana R, Rodrigues-De-Paula F. The Mini-BESTest is an independent predictor of falls in Parkinson Disease. Braz J Phys Ther 2020; 24:433-440. [PMID: 31377123 PMCID: PMC7564029 DOI: 10.1016/j.bjpt.2019.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 03/18/2019] [Accepted: 07/12/2019] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Falls in Parkinson Disease (PD) are a complex health problem, with multidimensional causes and consequences. OBJECTIVES To identify the fall predictors in individuals with PD and compare fallers and non-fallers considering their socio-demographic, anthropometric, clinical and functional status. METHODS A multicenter cross-sectional design was employed. Variables included: age, sex, body mass index, PD progression, levodopa dosage, activities limitation and motor impairments (UPDRS ADL/Motor), level of physical activity (human activity profile - HAP), fear of falls (Falls Efficacy Scale-International-FES-I), freezing of gait (Freezing of Gait Questionnaire - FOG-Q), gait speed (10 meters walk test - 10-MWT), lower limb functional strength (Five Times Sit-to-Stand Test - FTSST), balance (Mini-BESTest), mobility (Timed "Up & Go" - TUG) and dual-task dynamic (TUG-DT). Seventeen potential predictors were identified. Logistic regression and ROC curve were applied. RESULTS Three-hundred and seventy individuals (44.87% fallers and 55.13% non-fallers) completed the study. Fallers presented worse performance in UPDRS motor/ADL/Total, FES-I, FOG-Q, Mini-BESTest, HAP, TUG and TUG-DT and the majority were inactive. The Mini-BESTest Total was the main independent predictor of falls (OR=0.92; p<0.001; 95% CI=0.89, 0.95). For each one-unit increase in the Mini-BESTest, there was an average reduction of 8% in the probability of being a faller. A cut-off point of 21.5/28 (AUC=0.669, sensitivity 70.7% and specificity 55.1%) was determined. CONCLUSION Besides characterizing and comparing fallers and non-fallers, this study showed that the Mini-BESTest was the strongest individual predictor of falls in individuals with PD, highlighting the importance of evaluating dynamic balance ability during fall risk assessment.
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Affiliation(s)
| | - Aline Alvim Scianni
- Department of Physical Therapy, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | | | - Raquel de Carvalho Lana
- Department of Physical Therapy, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
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Abou L, Alluri A, Fliflet A, Du Y, Rice LA. Effectiveness of Physical Therapy Interventions in Reducing Fear of Falling Among Individuals With Neurologic Diseases: A Systematic Review and Meta-analysis. Arch Phys Med Rehabil 2020; 102:132-154. [PMID: 32745544 DOI: 10.1016/j.apmr.2020.06.025] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/23/2020] [Accepted: 06/30/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To summarize the effectiveness of physical therapy interventions to reduce fear of falling (FOF) among individuals living with neurologic diseases. DATA SOURCES PubMed, Physiotherapy Evidence Database, Scopus, Web of Science, PsycINFO, Cumulative Index to Nursing and Allied Health, and SportDiscuss were searched from inception until December 2019. STUDY SELECTION Clinical trials with either the primary or secondary aim to reduce FOF among adults with neurologic diseases were selected. DATA EXTRACTION Potential articles were screened for eligibility, and data were extracted by 2 independent researchers. Risk of bias was assessed by the Cochrane Risk of Bias tool for randomized controlled trials and the National Institutes of Health Quality Assessment Tool for pre-post studies. A meta-analysis was performed among trials presenting with similar clinical characteristics. The Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) was used to rate the overall quality of evidence. RESULTS Sixty-one trials with 3954 participants were included in the review and 53 trials with 3524 participants in the meta-analysis. The included studies presented, in general, with a low to high risk of bias. A combination of gait and balance training was significantly more effective compared with gait training alone in reducing FOF among individuals with Parkinson disease (PD) (mean difference [MD]=11.80; 95% CI, 8.22-15.38; P<.001). Home-based exercise and leisure exercise demonstrated significant improvement in reducing FOF over usual care in multiple sclerosis (MS) (MD=15.27; 95% CI, 6.15-24.38; P=.001). No statistically significant between-groups differences were reported among individuals with stroke and spinal cord injury. The overall quality of evidence presented in this review ranges from very low to moderate according to the assessment with the GRADE approach. CONCLUSIONS Gait with lower limb training combined with balance training is effective in reducing FOF in individuals with PD. Also, home-based or leisure exercise is effective among individuals with MS. However, because of several limitations of the included studies, further research is needed to examine the effectiveness of FOF intervention among individuals with neurologic diseases.
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Affiliation(s)
- Libak Abou
- Department of Kinesiology and Community Health, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Aditya Alluri
- Department of Molecular and Cellular Biology, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Alexander Fliflet
- Department of Kinesiology and Community Health, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Yiting Du
- Department of Interdisciplinary Health Sciences, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Laura A Rice
- Department of Kinesiology and Community Health, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois.
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Lebel S, Mutsaers B, Tomei C, Leclair CS, Jones G, Petricone-Westwood D, Rutkowski N, Ta V, Trudel G, Laflamme SZ, Lavigne AA, Dinkel A. Health anxiety and illness-related fears across diverse chronic illnesses: A systematic review on conceptualization, measurement, prevalence, course, and correlates. PLoS One 2020; 15:e0234124. [PMID: 32716932 PMCID: PMC7384626 DOI: 10.1371/journal.pone.0234124] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 05/19/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Patients with chronic diseases commonly report fears of illness or symptoms recurring or worsening. These fears have been addressed from an illness-specific perspective (e.g., fear of cancer recurrence), a generic illness perspective (e.g., fear of progression), and a psychiatric perspective (DSM-5 illness anxiety disorder and somatic symptom disorder). The broader concept of health anxiety (HA) can also be applied to patients with a chronic disease. This review was conducted to investigate the conceptual, theoretical, measurement-overlap, and differences between these distinct perspectives. We also aimed to summarize prevalence, course, and correlates of these fears in different chronic illnesses. METHODS We used PsycINFO, PubMED, CINAHL, Web of Science, SCOPUS, and PSYNDEX to conduct a systematic review of studies pertaining to these fears in chronic illness published from January 1996 to October 2017. A total of 401 articles were retained. RESULTS There were commonalities across different conceptualizations and diseases: a high prevalence of clinical levels of fears (>20%), a stable course over time, and a deleterious impact on quality of life. Reviewed studies used definitions, models, and measures that were illness-specific, with only a minority employing a psychiatric perspective, limiting cross-disease generalizability. There appears to be some applicability of DSM-5 disorders to the experience of fear of illness/symptoms in patients with a chronic illness. While conceptualizing HA on a continuum ranging from mild and transient to severe may be appropriate, there is a lack of agreement about when the level of fear becomes 'excessive.' The definitions, models, and measures of HA across chronic illnesses involve affective, cognitive, behavioral, and perceptual features. CONCLUSIONS The concept of HA may offer a unifying conceptual perspective on the fears of illness/symptoms worsening or returning commonly experienced by those with chronic disease.
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Affiliation(s)
- Sophie Lebel
- School of Psychology, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Christina Tomei
- School of Psychology, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Georden Jones
- School of Psychology, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Nicole Rutkowski
- School of Psychology, University of Ottawa, Ottawa, Ontario, Canada
| | - Viviane Ta
- School of Psychology, University of Ottawa, Ottawa, Ontario, Canada
| | - Geneviève Trudel
- School of Psychology, University of Ottawa, Ottawa, Ontario, Canada
| | | | | | - Andreas Dinkel
- Department of Psychosomatic Medicine and Psychotherapy, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
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The prevalence of freezing of gait in Parkinson's disease and in patients with different disease durations and severities. Chin Neurosurg J 2020; 6:17. [PMID: 32922946 PMCID: PMC7398304 DOI: 10.1186/s41016-020-00197-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 04/16/2020] [Indexed: 12/16/2022] Open
Abstract
Background The prevalence rates of freezing of gait (FOG) in Parkinson’s disease (PD) vary widely, ranging from 14.0 to 55.1%. Our aim is to calculate the overall prevalence of FOG in all PD patients with different disease durations and severities. Methods Using Medline/PubMed/Embase, we carried out a systematic literature search for studies reporting the PD and clinically relevant FOG. Results After primary screening, a total of 35 studies were identified and further analyzed for inclusion into the analysis, and 29 studies fulfilled the quality criteria and included in this meta-analysis. The overall prevalence of FOG in PD was 39.9% (95% CI 35.3-44.5%). The FOG identified by the freezing of gait questionnaire item 3 may be more prevalent (43.8%, 95% CI 38.5-49.1%) than the FOG identified by the Unified Parkinson’s Disease Rating Scale item 14 (36.0%, 95% CI 29.0-43.1%). Disease duration and severity are both the clinical features associated with the FOG. The highest FOG prevalence rate in PD patients was seen in patients with disease durations ≥ 10 years, at 70.8%, followed that of PD patients with disease durations ≥ 5 years (53.3%), and PD patients with disease durations < 5 years (22.4%). FOG presented in 28.4% of PD patients with Hoehn and Yahr staging (H&Y) score ≤ 2.5, and in 68.4% of PD patients with H&Y score ≥ 2.5. Conclusion This meta-analysis confirms that the prevalence of FOG in PD is considerable, and highlights the need for accurate identification of FOG in PD.
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LeWitt PA, Kymes S, Hauser RA. Parkinson Disease and Orthostatic Hypotension in the Elderly: Recognition and Management of Risk Factors for Falls. Aging Dis 2020; 11:679-691. [PMID: 32489712 PMCID: PMC7220277 DOI: 10.14336/ad.2019.0805] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 08/05/2019] [Indexed: 12/11/2022] Open
Abstract
Parkinson disease (PD) is often associated with postural instability and gait dysfunction that can increase the risk for falls and associated consequences, including injuries, increased burden on healthcare resources, and reduced quality of life. Patients with PD have nearly twice the risk for falls and associated bone fractures compared with their general population counterparts of similar age. Although the cause of falls in patients with PD may be multifactorial, an often under-recognized factor is neurogenic orthostatic hypotension (nOH). nOH is a sustained decrease in blood pressure upon standing whose symptomology can include dizziness/lightheadedness, weakness, fatigue, and syncope. nOH is due to dysfunction of the autonomic nervous system compensatory response to standing and is a consequence of the neurodegenerative processes of PD. The symptoms associated with orthostatic hypotension (OH)/nOH can increase the risk of falls, and healthcare professionals may not be aware of the real-world clinical effect of nOH, the need for routine screening, or the value of early diagnosis of nOH when treating elderly patients with PD. nOH is easily missed and, importantly, healthcare providers may not realize that there are effective treatments for nOH symptoms that could help lessen the fall risk resulting from the condition. This review discusses the burden of, and key risk factors for, falls among patients with PD, with a focus on practical approaches for the recognition, assessment, and successful management of OH/nOH. In addition, insights are provided as to how fall patterns can suggest fall etiology, thereby influencing the choice of intervention.
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Affiliation(s)
- Peter A LeWitt
- 1Henry Ford Hospital and Wayne State University School of Medicine, West Bloomfield, MI 48322, USA
| | | | - Robert A Hauser
- 3University of South Florida Parkinson's Disease and Movement Disorders Center, Parkinson Foundation Center of Excellence, Tampa, FL 33613, USA
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Chung YC, Lewthwaite R, Winstein CJ, Monterosso JR, Fisher BE. Expectancy and affective response to challenging balance practice conditions in individuals with Parkinson's disease. Eur J Neurosci 2020; 52:3652-3662. [PMID: 32176392 DOI: 10.1111/ejn.14723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 02/10/2020] [Accepted: 03/03/2020] [Indexed: 11/27/2022]
Abstract
Psychological states can influence motor performance and learning. In Parkinson's disease (PD), placebo effects or expectancies for pharmacological treatment benefits are not uncommon, but little is known about whether self-efficacy, beliefs about personal performance capabilities, may play a role in this population. To address this question, we investigated whether experimental manipulations designed to enhance self-efficacy would benefit motor performance and learning in PD. A motor learning paradigm was utilized to determine the short-term (i.e., practice) and longer-term (i.e., retention) impact of self-efficacy enhancement when 44 individuals with PD (Hoehn and Yahr stage I-III) acquired a challenging balance skill. Using stratified randomization by Hoehn and Yahr stage, participants were assigned to a control group or one of two investigational groups: (a) an expectancy-relevant statement that encouraged an incremental mindset in which the balance skill, though initially challenging, was acquirable with practice (incremental theory group, IT), and (b) the expectancy-relevant statement in combination with a criterion for successful performance (incremental theory plus success criteria group, IT + SC). All groups improved their balance performance, but contrary to expectations, investigational groups did not outperform the control group at practice or retention. Unexpectedly, the IT + SC group reported greater nervousness than the control and IT groups, suggesting that the employed success criteria may have induced performance-related anxiety. Regression analyses revealed that self-efficacy increase from initial practice predicted performance at the end of practice and at retention. These findings highlight the potential contribution of psychological factors on motor function and rehabilitation in individuals with PD.
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Affiliation(s)
- Yu-Chen Chung
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, USA
| | - Rebecca Lewthwaite
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, USA.,Rancho Los Amigos National Rehabilitation Center, Downey, CA, USA
| | - Carolee J Winstein
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, USA.,Department of Neurology, University of Southern California, Los Angeles, CA, USA
| | - John R Monterosso
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | - Beth E Fisher
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, USA.,Department of Neurology, University of Southern California, Los Angeles, CA, USA
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30
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The effect of fatigue on balance performance in Parkinson's disease. Clin Park Relat Disord 2020; 3:100047. [PMID: 34316632 PMCID: PMC8298774 DOI: 10.1016/j.prdoa.2020.100047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/06/2020] [Accepted: 02/19/2020] [Indexed: 01/07/2023] Open
Abstract
Introduction Balance loss and falls are a common and multifactorial finding in persons with Parkinson's Disease (pwPD). Objective fatigability is thought to contribute to falls in other neurologic conditions, but its impact on balance in pwPD is not known. The two-fold purpose of this study was to: 1) establish that a 6-minute walk (6MWFast) is a stimulus to subjective fatigue for pwPD; and, 2) determine if the Mini Balance Evaluation Systems Test (MBT) is sensitive to change that was induced by a fatiguing condition. Methods Using a randomized crossover design, 19 research participants performed a Mini Balance Evaluation Systems Test (MBT) before and after either a ‘fast’ 6-minute walk (6MWFast) to induce fatigue or a 6-minute rest. Results VASF scores increased after the 6MWFast. Total MBT scores in research participants with Modified Hoehn and Yahr (H&Y) scores of 3.0 and above differed significantly before and after the ‘fast’ 6-minute walk (p = .007, n = 9) while participants with H&Y scores of 1.5 to 2.5 (p = .084, n = 10) did not, suggesting that more disabled pwPD were more likely to experience fatigability that interfered with balance. Conclusions A 6MWFast is a sufficient stimulus to induce subjective fatigue in pwPD and to decrease total MBT scores for more disabled pwPD. Balance evaluations should occur when pwPD are in fatigued and unfatigued states to determine whether fatigue has an impact on balance performance. Both subjective fatigue and objective fatigability can occur in Parkinsons Disease (PD). Objective fatigability may be a factor in balance impairment in persons with PD. Balance assessments in PD should be made with the patient in both a fatigued and non fatigued state.
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Ferrazzoli D, Ortelli P, Cucca A, Bakdounes L, Canesi M, Volpe D. Motor-cognitive approach and aerobic training: a synergism for rehabilitative intervention in Parkinson's disease. Neurodegener Dis Manag 2020; 10:41-55. [PMID: 32039653 DOI: 10.2217/nmt-2019-0025] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Parkinson's disease (PD) results in a complex deterioration of motor behavior. Effective pharmacological or surgical treatments addressing the whole spectrum of both motor and cognitive symptoms are lacking. The cumulative functional impairment may have devastating socio-economic consequences on both patients and caregivers. Comprehensive models of care based on multidisciplinary approaches may succeed in better addressing the overall complexity of PD. Neurorehabilitation is a highly promising non-pharmacological intervention for managing PD. The scientific rationale beyond rehabilitation and its practical applicability remain to be established. In the present perspective, we aim to discuss the current evidence supporting integrated motor-cognitive and aerobic rehabilitation approaches for patients with PD while suggesting a practical framework to optimize this intervention in the next future.
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Affiliation(s)
- Davide Ferrazzoli
- Fresco Parkinson Center, Department of Parkinson's disease, Movement Disorders & Brain Injury Rehabilitation, 'Moriggia-Pelascini' Hospital - Gravedona ed Uniti, Como, 22015, Italy
| | - Paola Ortelli
- Fresco Parkinson Center, Department of Parkinson's disease, Movement Disorders & Brain Injury Rehabilitation, 'Moriggia-Pelascini' Hospital - Gravedona ed Uniti, Como, 22015, Italy
| | - Alberto Cucca
- Fresco Parkinson Center, Villa Margherita, S. Stefano Riabilitazione, Vicenza, 36057, Italy.,The Marlene & Paolo Fresco Institute for Parkinson's & Movement Disorders, Department of Neurology, NYU School of Medicine, New York, NY 10017, USA
| | - Leila Bakdounes
- Fresco Parkinson Center, Villa Margherita, S. Stefano Riabilitazione, Vicenza, 36057, Italy
| | - Margherita Canesi
- Fresco Parkinson Center, Department of Parkinson's disease, Movement Disorders & Brain Injury Rehabilitation, 'Moriggia-Pelascini' Hospital - Gravedona ed Uniti, Como, 22015, Italy
| | - Daniele Volpe
- Fresco Parkinson Center, Villa Margherita, S. Stefano Riabilitazione, Vicenza, 36057, Italy
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Abstract
Parkinson's disease (PD) and other synucleinopathies, namely dementia with Lewy bodies (DLB) and multiple system atrophy (MSA), are common degenerative neurological disorders that share synuclein pathology. Although certain cardinal features of parkinsonism, including bradykinesia and rigidity, respond well to levodopa, axial features, such as gait and balance impairment, are less reliably responsive to dopaminergic therapy and surgical interventions. Consequently, falls are common in PD and other synucleinopathies and are a major contributor toward injury and loss of independence. This underscores the need for appropriate fall risk assessment and implementation of preventative measures in all patients with parkinsonism. The aim of this review is therefore to explore modifiable and non-modifiable risk factors for falls in synucleinopathies. We next review and evaluate the evidence for pharmacological, nonpharmacological, and surgical approaches for fall prevention, and emphasize individualized and multifaceted approaches.
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Lindholm B, Eek F, Skogar Ö, Hansson EE. Dyskinesia and FAB score predict future falling in Parkinson's disease. Acta Neurol Scand 2019; 139:512-518. [PMID: 30820932 DOI: 10.1111/ane.13084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 02/09/2019] [Accepted: 02/26/2019] [Indexed: 12/11/2022]
Abstract
A growing body of research highlights the importance of cognition for prediction of falls in Parkinson's disease (PD). However, a previously proposed prediction model for future near falls and falls in PD, which includes history of near falls, tandem gait, and retropulsion, was developed without considering cognitive impairment. Therefore, by using a sample of 64 individuals with relatively mild PD and not excluding those with impaired cognition we aimed to externally validate the previously proposed model as well as to explore the value of additional predictors that also consider cognitive impairment. Since this validation study failed to support the proposed model in a PD sample including individuals with impaired global cognition, extended analyses generated a new model including dyskinesia (item 32 of Unified PD Rating Scale) and frontal lobe impairment (Frontal Assessment Battery-FAB) as significant independent predictors for future near falls and falls in PD. The discriminant ability of this new model was acceptable (AUC, 0. 80; 95% CI 0.68-0.91). Replacing the continuous FAB scores by a dichotomized version of FAB with a cut-off score ≤14 yielded slightly lower but still acceptable discriminant ability (AUC, 0. 79; 95% CI 0.68-0.91). Further studies are needed to test our new model and the proposed cut-off score of FAB in additional samples. Taken together, our observations suggest potentially important additions to the evidence base for clinical fall prediction in PD with concomitant cognitive impairment.
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Affiliation(s)
- Beata Lindholm
- Clinical Memory Research Unit, Department of Clinical Sciences, Malmö Lund University Lund Sweden
- Department of Neurology and Rehabilitation Medicine Skåne University Hospital Malmö Sweden
| | - Frida Eek
- Department of Health Sciences Lund University Lund Sweden
| | - Örjan Skogar
- Department of Neurobiology, Care Sciences and Society Karolinska Institutet Stockholm Sweden
- Institute of Gerontology and Aging Research Network – Jönköping (ARN‐J), School of Health and Welfare Jönköping University Jönköping Sweden
| | - Eva E. Hansson
- Department of Health Sciences Lund University Lund Sweden
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Geerse DJ, Roerdink M, Marinus J, van Hilten JJ. Walking adaptability for targeted fall-risk assessments. Gait Posture 2019; 70:203-210. [PMID: 30901621 DOI: 10.1016/j.gaitpost.2019.02.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/30/2019] [Accepted: 02/19/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Most falls occur during walking and are due to trips, slips or misplaced steps, which suggests a reduced walking adaptability. The objective of this study was to evaluate the potential merit of a walking-adaptability assessment for identifying prospective fallers and risk factors for future falls in a cohort of stroke patients, Parkinson's disease patients, and controls (n = 30 for each group). RESEARCH QUESTION Does an assessment of walking-adaptability improve the identification of fallers compared to generic fall-risk factors alone? METHODS This study comprised an evaluation of subject characteristics, clinical gait and balance tests, a quantitative gait assessment and a walking-adaptability assessment with the Interactive Walkway. Subjects' falls were registered prospectively with falls calendars during a 6-month follow-up period. Generic and walking-related fall-risk factors were compared between prospective fallers and non-fallers. Binary logistic regression and Chi-square Automatic Interaction Detector analyses were performed to identify fallers and predictor variables for future falls. RESULTS In addition to fall history, obstacle-avoidance success rate and normalized walking speed during goal-directed stepping correctly classified prospective fallers and were predictors of future falls. Compared to the use of generic fall-risk factors only, the inclusion of walking-related fall-risk factors improved the identification of prospective fallers. SIGNIFICANCE If cross-validated in future studies with larger samples, these fall-risk factors may serve as quick entry tests for falls prevention programs. In addition, the identification of these walking-related fall-risk factors may help in developing falls prevention strategies.
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Affiliation(s)
- Daphne J Geerse
- Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands; Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, the Netherlands.
| | - Melvyn Roerdink
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, the Netherlands
| | - Johan Marinus
- Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands
| | - Jacobus J van Hilten
- Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands
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Creaby MW, Cole MH. Gait characteristics and falls in Parkinson's disease: A systematic review and meta-analysis. Parkinsonism Relat Disord 2018; 57:1-8. [DOI: 10.1016/j.parkreldis.2018.07.008] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/28/2018] [Accepted: 07/16/2018] [Indexed: 12/26/2022]
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Chomiak T, Watts A, Burt J, Camicioli R, Tan SN, McKeown MJ, Hu B. Differentiating cognitive or motor dimensions associated with the perception of fall-related self-efficacy in Parkinson's disease. NPJ Parkinsons Dis 2018; 4:26. [PMID: 30155514 PMCID: PMC6102294 DOI: 10.1038/s41531-018-0059-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 05/28/2018] [Accepted: 06/07/2018] [Indexed: 12/18/2022] Open
Abstract
In Parkinson's disease (PD), concurrent declines in cognitive and motor domain function can severely limit an individual's ability to conduct daily tasks. Current diagnostic methods, however, lack precision in differentiating domain-specific contributions of cognitive or motor impairments based on a patients' clinical manifestation. Fear of falling (FOF) is a common clinical manifestation among the elderly, in which both cognitive and motor impairments can lead to significant barriers to a patients' physical and social activities. The present study evaluated whether a set of analytical and machine-learning approaches could be used to help delineate boundary conditions and separate cognitive and motor contributions to a patient's own perception of self-efficacy and FOF. Cognitive and motor clinical scores, in conjunction with FOF, were collected from 57 Parkinson's patients during a multi-center rehabilitation intervention trial. Statistical methodology was used to extract a subset of uncorrelated cognitive and motor components associated with cognitive and motor predictors, which were then used to independently identify and visualize cognitive and motor dimensions associated with FOF. We found that a central cognitive process, extracted from tests of executive, attentional, and visuoperceptive function, was a unique and significant independent cognitive predictor of FOF in PD. In addition, we provide evidence that the approaches described here may be used to computationally discern specific types of FOF based on separable cognitive or motor models. Our results are consistent with a contemporary model that the deterioration of a central cognitive mechanism that modulates self-efficacy also plays a critical role in FOF in PD.
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Affiliation(s)
- Taylor Chomiak
- Division of Translational Neuroscience, Department of Clinical Neurosciences, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1 Canada
| | - Alexander Watts
- Division of Translational Neuroscience, Department of Clinical Neurosciences, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1 Canada
| | - Jacqueline Burt
- Department of Medicine, Division of Neurology, Clinical Sciences Building, University of Alberta, Edmonton, AB T6G 2R7 Canada
| | - Richard Camicioli
- Department of Medicine, Division of Neurology, Clinical Sciences Building, University of Alberta, Edmonton, AB T6G 2R7 Canada
| | - Sun Nee Tan
- Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3 Canada
| | - Martin J. McKeown
- Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3 Canada
| | - Bin Hu
- Division of Translational Neuroscience, Department of Clinical Neurosciences, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1 Canada
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38
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Lindholm B, Nilsson MH, Hansson O, Hagell P. The clinical significance of 10-m walk test standardizations in Parkinson's disease. J Neurol 2018; 265:1829-1835. [PMID: 29876762 PMCID: PMC6060742 DOI: 10.1007/s00415-018-8921-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND The 10-m walk test (10MWT) is a widely used measure of gait speed in Parkinson's disease (PD). However, it is unclear if different standardizations of its conduct impact test results. AIM OF THE STUDY We examined the clinical significance of two aspects of the standardization of the 10MWT in mild PD: static vs. dynamic start, and a single vs. repeated trials. Implications for fall prediction were also explored. METHODS 151 people with PD (mean age and PD duration, 68 and 4 years, respectively) completed the 10MWT in comfortable gait speed with static and dynamic start (two trials each), and gait speed (m/s) was recorded. Participants then registered all prospective falls for 6 months. RESULTS Absolute mean differences between outcomes from the various test conditions ranged between 0.016 and 0.040 m/s (effect sizes, 0.06-0.14) with high levels of agreement (intra-class correlation coefficients, 0.932-0.987) and small standard errors of measurement (0.032-0.076 m/s). Receiver operating characteristic curves showed similar discriminate abilities for prediction of future falls across conditions (areas under curves, 0.70-0.73). Cut-off points were estimated at 1.1-1.2 m/s. CONCLUSIONS Different 10MWT standardizations yield very similar results, suggesting that there is no practical need for an acceleration distance or repeated trials when conducting this test in mild PD.
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Affiliation(s)
- Beata Lindholm
- Department of Neurology and Rehabilitation Medicine, Skåne University Hospital, 205 02, Malmö, Sweden. .,Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden.
| | - Maria H Nilsson
- Department of Health Sciences, Lund University, Lund, Sweden.,Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Oskar Hansson
- Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden.,Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Peter Hagell
- The PRO-CARE Group, School of Health and Society, Kristianstad University, Kristianstad, Sweden
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Ferrazzoli D, Ortelli P, Madeo G, Giladi N, Petzinger GM, Frazzitta G. Basal ganglia and beyond: The interplay between motor and cognitive aspects in Parkinson's disease rehabilitation. Neurosci Biobehav Rev 2018; 90:294-308. [PMID: 29733882 DOI: 10.1016/j.neubiorev.2018.05.007] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 04/28/2018] [Accepted: 05/03/2018] [Indexed: 02/08/2023]
Abstract
Parkinson's disease (PD) is characterized by motor and cognitive dysfunctions, affecting the motor behaviour. We summarize evidence that the interplay between motor and cognitive approaches is crucial in PD rehabilitation. Rehabilitation is complementary to pharmacological therapy and effective in reducing the PD disturbances, probably acting by inducing neuroplastic effects. The motor behaviour results from a complex integration between cortical and subcortical areas, underlying the motor, cognitive and motivational aspects of movement. The close interplay amongst these areas makes possible to learn, control and express habitual-automatic actions, which are dysfunctional in PD. The physiopathology of PD could be considered the base for the development of effective rehabilitation treatments. As the volitional action control is spared in early-medium stages of disease, rehabilitative approaches engaging cognition permit to achieve motor benefits and appear to be the most effective for PD. We will point out data supporting the relevance of targeting both motor and cognitive aspects in PD rehabilitation. Finally, we will discuss the role of cognitive engagement in motor rehabilitation for PD.
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Affiliation(s)
- Davide Ferrazzoli
- Department of Parkinson's Disease, Movement Disorders and Brain Injury Rehabilitation, "Moriggia-Pelascini" Hospital, Via Pelascini, 3, Gravedona ed Uniti, 22015, Como, Italy.
| | - Paola Ortelli
- Department of Parkinson's Disease, Movement Disorders and Brain Injury Rehabilitation, "Moriggia-Pelascini" Hospital, Via Pelascini, 3, Gravedona ed Uniti, 22015, Como, Italy.
| | - Graziella Madeo
- Department of Parkinson's Disease, Movement Disorders and Brain Injury Rehabilitation, "Moriggia-Pelascini" Hospital, Via Pelascini, 3, Gravedona ed Uniti, 22015, Como, Italy.
| | - Nir Giladi
- Movement Disorders Unit, Neurological Institute, Tel-Aviv Medical Centre, Sieratzki Chair in Neurology, Sackler School of Medicine, Sagol School for Neuroscience, Tel-Aviv University, Tel-Aviv, Israel.
| | - Giselle M Petzinger
- Department of Neurology, University of Southern California, Los Angeles, CA, 90033, United States; Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, 90033, United States.
| | - Giuseppe Frazzitta
- Department of Parkinson's Disease, Movement Disorders and Brain Injury Rehabilitation, "Moriggia-Pelascini" Hospital, Via Pelascini, 3, Gravedona ed Uniti, 22015, Como, Italy.
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Jonasson SB, Nilsson MH, Lexell J, Carlsson G. Experiences of fear of falling in persons with Parkinson's disease - a qualitative study. BMC Geriatr 2018; 18:44. [PMID: 29409443 PMCID: PMC5801775 DOI: 10.1186/s12877-018-0735-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 01/28/2018] [Indexed: 12/02/2022] Open
Abstract
Background Fear of falling is common among persons with Parkinson’s disease and is negatively associated with quality of life. However a lack of in-depth understanding of fear of falling as a phenomenon persists. This qualitative study aimed to explore the experiences of fear of falling in persons with Parkinson’s disease. Methods Individual interviews were performed with twelve persons with Parkinson’s disease (median age 70 years, median Parkinson duration 9 years, 50% women). The interviews were semi-structured and followed a study-specific interview guide. The transcribed interviews were analyzed using qualitative content analysis. Results Fear of falling was experienced as a disturbing factor in everyday life. It generated a feeling of vulnerability and made daily activities and everyday environments seem potentially hazardous. Persons also missed performing previous activities. The fear of falling was a varying experience, fueled by an awareness of falls and near falls, Parkinson-related symptoms and disabilities, and by others in their environment. The persons adopted different strategies to handle their fear of falling. Activities were adapted, avoided, performed with help, or carried out despite their fear of falling. Conclusions The experiences of fear of falling were complex, multifaceted and varied over time and in relation to different activities and environments. This indicates that interventions targeting fear of falling need to be individually tailored for persons with Parkinson’s disease and should focus on several aspects, such as Parkinson-related symptoms and disabilities, activities and environmental factors. This study provides new information that increases the understanding of fear of falling, which has implications for researchers as well as clinicians working with persons with Parkinson’s disease and fear of falling. Electronic supplementary material The online version of this article (10.1186/s12877-018-0735-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Stina B Jonasson
- Department of Health Sciences, Lund University, Box 157, 221 00, Lund, Sweden. .,Department of Neurology and Rehabilitation, Skåne University Hospital, Lund, Sweden.
| | - Maria H Nilsson
- Department of Health Sciences, Lund University, Box 157, 221 00, Lund, Sweden.,Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Jan Lexell
- Department of Health Sciences, Lund University, Box 157, 221 00, Lund, Sweden.,Department of Neurology and Rehabilitation, Skåne University Hospital, Lund, Sweden.,Department of Health Sciences, Luleå University of Technology, Luleå, Sweden
| | - Gunilla Carlsson
- Department of Health Sciences, Lund University, Box 157, 221 00, Lund, Sweden
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41
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Maugest L, McGovern EM, Mazalovic K, Doulazmi M, Apartis E, Anheim M, Bourdain F, Benchetrit E, Czernecki V, Broussolle E, Bonnet C, Falissard B, Jahanshahi M, Vidailhet M, Roze E. Health-Related Quality of Life Is Severely Affected in Primary Orthostatic Tremor. Front Neurol 2018; 8:747. [PMID: 29379467 PMCID: PMC5775514 DOI: 10.3389/fneur.2017.00747] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/27/2017] [Indexed: 12/17/2022] Open
Abstract
Background Primary orthostatic tremor (POT) is a movement disorder characterized by unsteadiness upon standing still due to a tremor affecting the legs. It is a gradually progressive condition with limited treatment options. Impairments in health-related quality of life (HQoL) seem to far exceed the physical disability associated with the condition. Methods A multi-center, mixed-methodology study was undertaken to investigate 40 consecutive patients presenting with POT to four movement disorder centers in France. HQoL was investigated using eight quantitative scales and a qualitative study which employed semi-structured interviews. Qualitative data were analyzed with a combination of grounded-theory approach. Results Our results confirm that HQoL in POT is severely affected. Fear of falling was identified as the main predictor of HQoL. The qualitative arm of our study explored our initial results in greater depth and uncovered themes not identified by the quantitative approach. Conclusion Our results illustrate the huge potential of mixed methodology in identifying issues influencing HQoL in POT. Our work paves the way for enhanced patient care and improved HQoL in POT and is paradigmatic of this modern approach for investigating HQoL issues in chronic neurological disorders.
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Affiliation(s)
- Lucie Maugest
- Département de Neurologie, EA 4184, Hôpital universitaire de Dijon, Dijon, France
| | - Eavan M McGovern
- Department of Neurology, St Vincent's University Hospital, Dublin, Ireland.,School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Katia Mazalovic
- Département de Médecine générale, Faculté de Médecine, Université de Bourgogne, Dijon, France
| | - Mohamed Doulazmi
- Sorbonne Universités, UPMC Univ Paris 06, UMR8256, INSERM, CNRS, Institut de Biologie Paris Seine, Adaptation Biologique et Vieillissement, Paris, France
| | - Emmanuelle Apartis
- Département de Neurophysiologie, Hôpital de Saint-Antoine, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Mathieu Anheim
- Département de Neurologie, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France.,Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch-Graffenstaden, France.,Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Frédéric Bourdain
- Département de Neurologie, Centre médico-chirurgical Foch, Suresnes, France
| | - Eve Benchetrit
- Département de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Virginie Czernecki
- Département de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Emmanuel Broussolle
- Département de Neurologie, Service de Mouvements anormaux, Hôpital Neurologique et Neurochirurgical Pierre Wertheimer, Hospices Civils de Lyon, Lyon, France.,Université de Lyon, Université Lyon I, Faculté de Médecine Lyon Sud Charles Mérieux, Institut des Sciences Cognitives Marc Jeannerod, CNRS UMR 5229, Lyon, France
| | - Cecilia Bonnet
- Département de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Bruno Falissard
- CESP, Univ. Paris-Sud, Université Paris-Saclay, UVSQ, INSERM U1178, Paris, France
| | - Marjan Jahanshahi
- Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, The National Hospital for Neurology and Neurosurgery, University College London, London, United Kingdom
| | - Marie Vidailhet
- Département de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France.,UMR S 975, CNRS UMR 7225, ICM, Sorbonne Universités, UPMC Université Paris, Paris, France
| | - Emmanuel Roze
- Département de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France.,UMR S 975, CNRS UMR 7225, ICM, Sorbonne Universités, UPMC Université Paris, Paris, France
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42
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Psychometric Evaluation of the Parkinson's Disease Activities of Daily Living Scale. PARKINSONS DISEASE 2017; 2017:4151738. [PMID: 29147597 PMCID: PMC5632893 DOI: 10.1155/2017/4151738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/22/2017] [Accepted: 08/17/2017] [Indexed: 11/29/2022]
Abstract
Objective To evaluate a set of psychometric properties (i.e., data completeness, targeting, and external construct validity) of the Parkinson's disease Activities of Daily Living Scale (PADLS) in people with Parkinson's disease (PD). Specific attention was paid to the association between PADLS and PD severity, according to the Hoehn & Yahr (H&Y) staging. Methods The sample included 251 persons with PD (mean age 70 [SD 9] years). Data collection comprised a self-administered postal survey, structured interviews, and clinical assessments at home visits. Results Data completeness was 99.6% and the mean PADLS score was 2.1. Floor and ceiling effects were 22% and 2%, respectively. PADLS scores were more strongly associated (rs > 0.5) with perceived functional independence, ADL dependency, walking difficulties, and self-rated PD severity than with variables such as PD duration and cognitive function (rs < 0.5). PADLS scores differed across H&Y stages (Kruskal-Wallis test, p < 0.001). Those in H&Y stages IV-V had more ADL disability than those in stage III (Mann–Whitney U test, p < 0.001), whereas there were no significant differences between the other stages. Conclusion PADLS revealed excellent data completeness, acceptable targeting, and external construct validity. It seems to be well suited as a rough estimate of ADL disability in people with PD.
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Youn J, Okuma Y, Hwang M, Kim D, Cho JW. Falling Direction can Predict the Mechanism of Recurrent Falls in Advanced Parkinson's Disease. Sci Rep 2017. [PMID: 28634343 PMCID: PMC5478627 DOI: 10.1038/s41598-017-04302-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Falls are a common and disabling symptom in patients with Parkinson’s disease (PD). For prevention, it is important to understand the pathophysiology of falls in PD patients, but the predictors for the possible mechanisms underlying such falls have not been clearly elucidated. In this prospective observational study, we investigated the implications of falling direction to predict the mechanisms of recurrent falls in PD patients. We enrolled 62 recurrent fallers with PD and divided them into two groups according to the main falling directions: 45 PD fallers who fell forward (forward fallers), and 17 PD fallers who fell in the other directions (non-forward fallers). Although there was no difference in demographic data, parkinsonism, or frontal lobe function, forward fallers showed more severe falls and tended to fall during walking or turning, while non-forward fallers usually fell during sitting/standing or turning. Additionally, forward fallers revealed higher score on a freezing of gait (FOG) questionnaire. Logistic regression analysis demonstrated that FOG was associated with falling forward, while balance impairment, akinetic-rigid subtype, and neuropsychiatric symptoms were associated with falling into the other directions. Our results indicate that FOG and balance impairment are two major mechanisms for recurrent falling in PD patients, and falling direction is an important predictor for these mechanisms.
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Affiliation(s)
- Jinyoung Youn
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Neuroscience Center, Samsung Medical Center, Seoul, Korea
| | - Yasuyuki Okuma
- Department of Neurology, Juntendo University Shizuoka Hospital, Shizuoka, Japan
| | - Minho Hwang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Neuroscience Center, Samsung Medical Center, Seoul, Korea
| | - Dongyeop Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Neuroscience Center, Samsung Medical Center, Seoul, Korea
| | - Jin Whan Cho
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. .,Neuroscience Center, Samsung Medical Center, Seoul, Korea.
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44
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Jonasson SB, Nilsson MH, Lexell J. Psychometric properties of the original and short versions of the Falls Efficacy Scale-International (FES-I) in people with Parkinson's disease. Health Qual Life Outcomes 2017; 15:116. [PMID: 28569162 PMCID: PMC5452359 DOI: 10.1186/s12955-017-0689-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 05/17/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Fear of falling is common in people with Parkinson's disease (PD) and is associated with an increased risk for future falls, activity limitations and a reduced quality of life. The Falls Efficacy Scale-International (FES-I) assesses fear of falling conceptualized as concerns about falling. The original FES-I has good psychometric properties in people with PD, but whether this applies also for the short version of FES-I remains to be shown. The aim of the present study was to evaluate the psychometric properties of the short FES-I and to compare these with the original FES-I in the same sample of people with PD. The investigated psychometric properties included known groups validity, data completeness, scaling assumptions, targeting and reliability. METHODS A postal survey, which included the original, full-length FES-I, was distributed to 174 people with PD. Responders received a second survey after two weeks. From these data, short FES-I total scores were calculated by extracting the items that are included in the short version of the scale. RESULTS Median age and PD duration of the 101 responders (43% women) were 73 and 5 years, respectively. The original as well as the short FES-I scores were able to discriminate (p < 0.001) between groups with and without fear of falling, activity avoidance, falls, near falls, and with various self-rated PD severity, respectively. Both versions of FES-I had a high level of data completeness (0.7 to 0.9% missing item responses). Scaling assumptions were acceptable for the original as well as the short FES-I. While the short FES-I had 19% floor effect, the original version was better targeted. Both versions were reliable and obtained high values for internal consistency (Cronbach's alpha >0.8) and test-retest reliability (Intraclass Correlation Coefficient > 0.9). CONCLUSIONS Both the original and short FES-I revealed generally good psychometric properties in people with PD, although the original scale was better targeted. Due to the higher floor effect in the short FES-I, the present findings favors using the original, full-length FES-I in longitudinal follow-ups, intervention studies and clinical practice when addressing concerns about falling.
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Affiliation(s)
- Stina B Jonasson
- Department of Health Sciences, Lund University, Box 157, 221 00 Lund, Sweden
- Department of Neurology and Rehabilitation, Skåne University Hospital, Lund, Sweden
| | - Maria H Nilsson
- Department of Health Sciences, Lund University, Box 157, 221 00 Lund, Sweden
- Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Jan Lexell
- Department of Health Sciences, Lund University, Box 157, 221 00 Lund, Sweden
- Department of Neurology and Rehabilitation, Skåne University Hospital, Lund, Sweden
- Department of Health Science, Luleå University of Technology, Luleå, Sweden
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45
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Warlop T, Detrembleur C, Buxes Lopez M, Stoquart G, Lejeune T, Jeanjean A. Does Nordic Walking restore the temporal organization of gait variability in Parkinson's disease? J Neuroeng Rehabil 2017; 14:17. [PMID: 28222810 PMCID: PMC5320697 DOI: 10.1186/s12984-017-0226-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 02/14/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Gait disorders of Parkinson's disease (PD) are characterized by the breakdown of the temporal organization of stride duration variability that was tightly associated to dynamic instability in PD. Activating the upper body during walking, Nordic Walking (NW) may be used as an external cueing to improve spatiotemporal parameters of gait, such as stride length or gait variability, in PD. The aim of this study was to evaluate the beneficial effects of NW on temporal organization of gait variability and spatiotemporal gait variables in PD. METHODS Fourteen mild to moderate PD participants and ten age-matched healthy subjects performed 2 × 12 min overground walking sessions (with and without pole in a randomized order) at a comfortable speed. Gait speed, cadence, step length and temporal organization (i.e. long-range autocorrelations; LRA) of stride duration variability were studied on 512 consecutive gait cycles using a unidimensional accelerometer placed on the malleola of the most affected side in PD patients and of the dominant side in healthy controls. The presence of LRA was determined using the Rescaled Range Analysis (Hurst exponent) and the Power Spectral Density (α exponent). To assess NW and disease influences on gait, paired t-tests, Z-score and a two-way (pathological condition x walking condition) ANOVA repeated measure were used. RESULTS Leading to significant improvement of LRA, NW enhances step length and reduces gait cadence without any change in gait speed in PD. Interestingly, LRA and step length collected from the NW session are similar to that of the healthy population. CONCLUSION This cross-sectional controlled study demonstrates that NW may constitute a powerful way to struggle against the randomness of PD gait and the typical gait hypokinesia. Involving a voluntary intersegmental coordination, such improvement could also be due to the upper body rhythmic movements acting as rhythmical external cue to bypass their defective basal ganglia circuitries. ETHICS COMMITTEE'S REFERENCE NUMBER B403201318916 TRIAL REGISTRATION: NCT02419768.
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Affiliation(s)
- Thibault Warlop
- Physical and Rehabilitation Medicine Department, Cliniques universitaires Saint-Luc, Avenue Hippocrate n°10, 1200, Brussels, Belgium. .,Institut de Recherche Expérimentale et Clinique, Neuro Musculo Skeletal Lab (IREC/NMSK), Université catholique de Louvain, Brussels, Belgium. .,Louvain Bionics, Université catholique de Louvain, Brussels, Belgium.
| | - Christine Detrembleur
- Institut de Recherche Expérimentale et Clinique, Neuro Musculo Skeletal Lab (IREC/NMSK), Université catholique de Louvain, Brussels, Belgium.,Louvain Bionics, Université catholique de Louvain, Brussels, Belgium
| | | | - Gaëtan Stoquart
- Physical and Rehabilitation Medicine Department, Cliniques universitaires Saint-Luc, Avenue Hippocrate n°10, 1200, Brussels, Belgium.,Institut de Recherche Expérimentale et Clinique, Neuro Musculo Skeletal Lab (IREC/NMSK), Université catholique de Louvain, Brussels, Belgium.,Louvain Bionics, Université catholique de Louvain, Brussels, Belgium
| | - Thierry Lejeune
- Physical and Rehabilitation Medicine Department, Cliniques universitaires Saint-Luc, Avenue Hippocrate n°10, 1200, Brussels, Belgium.,Institut de Recherche Expérimentale et Clinique, Neuro Musculo Skeletal Lab (IREC/NMSK), Université catholique de Louvain, Brussels, Belgium.,Louvain Bionics, Université catholique de Louvain, Brussels, Belgium
| | - Anne Jeanjean
- Institute of Neurosciences (IoNS), Université catholique de Louvain, Brussels, Belgium.,Neurology Department, Cliniques universitaires Saint-Luc, Brussels, Belgium
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Stack E. Falls are unintentional: Studying simulations is a waste of faking time. J Rehabil Assist Technol Eng 2017; 4:2055668317732945. [PMID: 31186938 PMCID: PMC6453082 DOI: 10.1177/2055668317732945] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 08/31/2017] [Indexed: 11/15/2022] Open
Abstract
Researchers tend to agree that falls are, by definition, unintentional and that sensor algorithms (the processes that allows a computer program to identify a fall among data from sensors) perform poorly when attempting to detect falls 'in the wild' (a phrase some scientists use to mean 'in reality'). Algorithm development has been reliant on simulation, i.e. asking actors to throw themselves intentionally to the ground. This is unusual (no one studies faked coughs or headaches) and uninformative (no one can intend the unintentional). Researchers would increase their chances of detecting 'real' falls in 'the real world' by studying the behaviour of fallers, however, vulnerable, before, during and after the event: the literature on the circumstances of falling is more informative than any number of faked approximations. A complimentary knowledge base (in falls, sensors and/or signals) enables multidisciplinary teams of clinicians, engineers and computer scientists to tackle fall detection and aim for fall prevention. Throughout this paper, I discuss differences between falls, 'intentional falling' and simulations, and the balance between simulation and reality in falls research, finally suggesting ways in which researchers can access examples of falls without resorting to fakery.
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Affiliation(s)
- Emma Stack
- Faculty of Health Sciences, University
of Southampton, Southampton, UK
- SPHERE EPSRC Interdisciplinary Research
Collaboration, Universities of Bristol, Reading and Southampton, UK
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The role of postural instability/gait difficulty and fear of falling in predicting falls in non-demented older adults. Arch Gerontol Geriatr 2016; 69:15-20. [PMID: 27866086 DOI: 10.1016/j.archger.2016.09.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/09/2016] [Accepted: 09/28/2016] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Postural instability/gait difficulty (PIGD) and fear of falling (FoF) frequently co-exist, but their individual predictive values for falls have not been compared in aging. This study aims to determine both independent and combined effect of PIGD and FoF to falls in older adults without dementia. METHODS PIGD and other extrapyramidal signs were systematically assessed in 449 community-dwelling participants without Parkinson's disease (76.48±6.61 ys; 56.8% female) enrolled in this longitudinal cohort study. Presence of FoF was measured by a single-item question (Do you have a FoF?) and self-confidence by the Activities-specific Balance Confidence scale (ABC scale). RESULTS One hundred sixty-nine participants (38%) had an incident fall over a mean follow-up of 20.1±12.2months. PIGD was present in 32% and FoF in 23% of the participants. Both PIGD (adjusted hazard ratio (aHR): 2.28; p=0.016) and self-confidence (aHR: 0.99; p=0.040) predicted falls when entered simultaneously in the Cox model. However, presence of FoF (aHR: 1.99; p=0.021) and self-confidence (aHR: 0.98; p=0.006) predicted falls only in individuals with PIGD. CONCLUSIONS PIGD and FoF were associated with future falls in older adults without dementia but FoF was a fall's predictor only in individuals with PIGD.
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Custodio N, Lira D, Herrera-Perez E, Montesinos R, Castro-Suarez S, Cuenca-Alfaro J, Cortijo P. Predictive model for falling in Parkinson disease patients. eNeurologicalSci 2016; 5:20-24. [PMID: 29430553 PMCID: PMC5803085 DOI: 10.1016/j.ensci.2016.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 10/05/2016] [Accepted: 11/01/2016] [Indexed: 11/17/2022] Open
Abstract
Background/aims Falls are a common complication of advancing Parkinson's disease (PD). Although numerous risk factors are known, reliable predictors of future falls are still lacking. The aim of this study was to develop a multivariate model to predict falling in PD patients. Methods Prospective cohort with forty-nine PD patients. The area under the receiver-operating characteristic curve (AUC) was calculated to evaluate predictive performance of the purposed multivariate model. Results The median of PD duration and UPDRS-III score in the cohort was 6 years and 24 points, respectively. Falls occurred in 18 PD patients (30%). Predictive factors for falling identified by univariate analysis were age, PD duration, physical activity, and scores of UPDRS motor, FOG, ACE, IFS, PFAQ and GDS (p-value < 0.001), as well as fear of falling score (p-value = 0.04). The final multivariate model (PD duration, FOG, ACE, and physical activity) showed an AUC = 0.9282 (correctly classified = 89.83%; sensitivity = 92.68%; specificity = 83.33%). Conclusions This study showed that our multivariate model have a high performance to predict falling in a sample of PD patients. In PD patients the fall rates doubles the reported rates in community welling older people without neurological disease, ranging from 35% to 90%. Falls have a negative psychosocial impact creating a spiral of increased fear of falling and reduced physical activity, and increased likelihood of nursing home admission. A multivariate model (PD duration, freezing of gait, Addenbrook's Cognitive Examination, and physical activity) to predict falling in our sample of PD patients showed a high performance.
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Affiliation(s)
- Nilton Custodio
- Servicio de Neurología, Instituto Peruano de Neurociencias, Lima, Peru
- Unidad de Diagnostico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Peru
- Unidad de Investigación, Instituto Peruano de Neurociencias, Lima, Peru
- Corresponding author at: Instituto Peruano de Neurociencias, – Bartolomé Herrera 161, Lima, Peru.Instituto Peruano de NeurocienciasBartolomé Herrera 161LimaPeru
| | - David Lira
- Servicio de Neurología, Instituto Peruano de Neurociencias, Lima, Peru
- Unidad de Diagnostico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Peru
- Unidad de Investigación, Instituto Peruano de Neurociencias, Lima, Peru
| | - Eder Herrera-Perez
- Unidad de Investigación, Instituto Peruano de Neurociencias, Lima, Peru
- Unidad de Desarrollo de Investigación, Tecnologías y Docencia, Instituto Nacional de Salud del Niño San Borja, Lima, Peru
- Centro de Investigación para el Desarrollo Integral y Sostenible (CIDIS), Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Rosa Montesinos
- Unidad de Diagnostico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Peru
- Unidad de Investigación, Instituto Peruano de Neurociencias, Lima, Peru
- Servicio de Medicina Física y Rehabilitación, Clínica Internacional, Lima, Peru
| | - Sheila Castro-Suarez
- Unidad de Diagnostico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Peru
- Unidad de Investigación, Instituto Peruano de Neurociencias, Lima, Peru
- Servicio de Neurología de la Conducta, Instituto Nacional de Ciencias Neurológicas, Lima, Peru
| | - Jose Cuenca-Alfaro
- Unidad de Diagnostico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Peru
- Unidad de Investigación, Instituto Peruano de Neurociencias, Lima, Peru
| | - Patricia Cortijo
- Unidad de Diagnostico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Peru
- Unidad de Investigación, Instituto Peruano de Neurociencias, Lima, Peru
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Lindholm B, Nilsson MH, Hansson O, Hagell P. External validation of a 3-step falls prediction model in mild Parkinson's disease. J Neurol 2016; 263:2462-2469. [PMID: 27646115 PMCID: PMC5110600 DOI: 10.1007/s00415-016-8287-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 09/08/2016] [Accepted: 09/09/2016] [Indexed: 11/19/2022]
Abstract
The 3-step falls prediction model (3-step model) that include history of falls, history of freezing of gait and comfortable gait speed <1.1 m/s was suggested as a clinical fall prediction tool in Parkinson’s disease (PD). We aimed to externally validate this model as well as to explore the value of additional predictors in 138 individuals with relatively mild PD. We found the discriminative ability of the 3-step model in identifying fallers to be comparable to previously studies [area under curve (AUC), 0.74; 95 % CI 0.65–0.84] and to be better than that of single predictors (AUC, 0.61–0.69). Extended analyses generated a new model for prediction of falls and near falls (AUC, 0.82; 95 % CI 0.75–0.89) including history of near falls, retropulsion according to the Nutt Retropulsion test (NRT) and tandem gait (TG). This study confirms the value of the 3-step model as a clinical falls prediction tool in relatively mild PD and illustrates that it outperforms the use of single predictors. However, to improve future outcomes, further studies are needed to firmly establish a scoring system and risk categories based on this model. The influence of methodological aspects of data collection also needs to be scrutinized. A new model for prediction of falls and near falls, including history of near falls, TG and retropulsion (NRT) may be considered as an alternative to the 3-step model, but needs to be tested in additional samples before being recommended. Taken together, our observations provide important additions to the evidence base for clinical fall prediction in PD.
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Affiliation(s)
- Beata Lindholm
- Department of Neurology and Rehabilitation Medicine, Skåne University Hospital, Malmö, Sweden. .,Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden.
| | - Maria H Nilsson
- Department of Health Sciences, Lund University, Lund, Sweden.,Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Oskar Hansson
- Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden.,Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Peter Hagell
- The PRO-CARE Group, School of Health and Society, Kristianstad University, Kristianstad, Sweden
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Fundament T, Eldridge PR, Green AL, Whone AL, Taylor RS, Williams AC, Schuepbach WMM. Deep Brain Stimulation for Parkinson's Disease with Early Motor Complications: A UK Cost-Effectiveness Analysis. PLoS One 2016; 11:e0159340. [PMID: 27441637 PMCID: PMC4956248 DOI: 10.1371/journal.pone.0159340] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 06/30/2016] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Parkinson's disease (PD) is a debilitating illness associated with considerable impairment of quality of life and substantial costs to health care systems. Deep brain stimulation (DBS) is an established surgical treatment option for some patients with advanced PD. The EARLYSTIM trial has recently demonstrated its clinical benefit also in patients with early motor complications. We sought to evaluate the cost-effectiveness of DBS, compared to best medical therapy (BMT), among PD patients with early onset of motor complications, from a United Kingdom (UK) payer perspective. METHODS We developed a Markov model to represent the progression of PD as rated using the Unified Parkinson's Disease Rating Scale (UPDRS) over time in patients with early PD. Evidence sources were a systematic review of clinical evidence; data from the EARLYSTIM study; and a UK Clinical Practice Research Datalink (CPRD) dataset including DBS patients. A mapping algorithm was developed to generate utility values based on UPDRS data for each intervention. The cost-effectiveness was expressed as the incremental cost per quality-adjusted life-year (QALY). One-way and probabilistic sensitivity analyses were undertaken to explore the effect of parameter uncertainty. RESULTS Over a 15-year time horizon, DBS was predicted to lead to additional mean cost per patient of £26,799 compared with BMT (£73,077/patient versus £46,278/patient) and an additional mean 1.35 QALYs (6.69 QALYs versus 5.35 QALYs), resulting in an incremental cost-effectiveness ratio of £19,887 per QALY gained with a 99% probability of DBS being cost-effective at a threshold of £30,000/QALY. One-way sensitivity analyses suggested that the results were not significantly impacted by plausible changes in the input parameter values. CONCLUSION These results indicate that DBS is a cost-effective intervention in PD patients with early motor complications when compared with existing interventions, offering additional health benefits at acceptable incremental cost. This supports the extended use of DBS among patients with early onset of motor complications.
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Affiliation(s)
| | - Paul R. Eldridge
- The Walton Centre NHS Foundation Trust and Liverpool University, Liverpool, United Kingdom
| | - Alexander L. Green
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - Alan L. Whone
- Bristol Brain Centre, Southmead Hospital, Bristol, United Kingdom
| | - Rod S. Taylor
- University of Exeter Medical School, Exeter, United Kingdom
| | - Adrian C. Williams
- University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - W. M. Michael Schuepbach
- Movement Disorders Center, Department of Neurology, Bern University Hospital and University of Bern, Bern, Switzerland
- Assistance Publique Hôpitaux de Paris, Centre d’Investigation Clinique 9503, Institut du Cerveau et de la Moelle épinière, Département de Neurologie, Université Pierre et Marie Curie–Paris 6 et INSERM, CHU Pitié-Salpêtrière, Paris, France
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