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Semplicini C, Agostini M, Andrigo C, Masiero S, Piccione F, Sorarù G. ExoBand, A Passive Wearable Device as a Walking Aid in Neuromuscular Patients: First Quantitative Assessment. J Neuromuscul Dis 2024; 11:877-881. [PMID: 38788086 DOI: 10.3233/jnd-240021] [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] [Indexed: 05/26/2024]
Abstract
Objective Exoband (by Moveo, Padova, Italy) functions as a walking brace, comprising a belt and two leg loops connected by a mechanism that stores energy during the initial phase of the gait cycle and releases it in the subsequent phase. This enhances hip flexor thrust, leading to functional improvement in walking for individuals with conditions characterized by proximal weakness. It has been approved as a passive wearable device for individuals with impaired walking abilities. Objective of this study was to establish a protocol to assess the use of Exoband in patients with various neuromuscular disorders. Methods This exploratory retrospective study includes consecutive patients diagnosed with neuromuscular disorders (CIDP, motor polyneuropathy, MND), exhibiting a proximal involvement and gait abnormalities. The evaluation protocol incorporated specific walking-related outcome measures, the 10-meter walk test (10mWT), Time-up-and-go test (TUG), and 2-minute walking test (2MWT). The assessments were conducted both with and without the Exoband under standard conditions. Results Eight patients (6 males, aged 60-78 years) were tested. An increase in velocity was observed in the 10mWT (median 13.4 sec, IQR 12.0-15.7 vs. 12.2 sec, IQR 11.3-14.2 seconds, p < 0.05) and the TUG (14.0 sec, IQR 13-16.2 vs 13.35 sec, IQR 11-13.8; p < 0.05, by non-parametric Wilcoxon test), and a trend of increase in 2MWT (median 88.2 vs 92.6 m, n.s.). Six out of 8 patients reported subjective benefits from the very first use, including improved walking stability, speed, confidence, and reduced fatigue. Conclusions Our protocol provides a quantitative assessment of Exoband usefulness for patients affected by neuropathies with gait abnormalities. Further investigations are warranted to assess the long-term effects of its regular Exoband use, its efficacy in specific neuromuscular diseases, and its potential role as a rehabilitation device.
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Affiliation(s)
- Claudio Semplicini
- UOC Neurologia Ospedale S. Antonio; Azienda Ospedale-Università di Padova, Padua, Italy
| | - Michela Agostini
- Dipartimento di Neuroscienze, Medicina Fisica e Riabilitazione, Università degli Studi di Padova, Padua, Italy
- UOC di Neuroriabilitazione; Azienda Ospedale-Università di Padova, Padua, Italy
| | - Cinzia Andrigo
- UOC Neurologia Ospedale S. Antonio; Azienda Ospedale-Università di Padova, Padua, Italy
| | - Stefano Masiero
- Dipartimento di Neuroscienze, Medicina Fisica e Riabilitazione, Università degli Studi di Padova, Padua, Italy
- UOC di Neuroriabilitazione; Azienda Ospedale-Università di Padova, Padua, Italy
| | - Francesco Piccione
- UOC di Neuroriabilitazione; Azienda Ospedale-Università di Padova, Padua, Italy
| | - Gianni Sorarù
- Dipartimento di Neuroscienze, Università degli Studi di Padova, Padua, Italy
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Gambelli CN, Bredin J, Doix ACM, Garcia J, Tanant V, Fournier-Mehouas M, Desnuelle C, Sacconi S, Colson SS. The effect of tibialis anterior weakness on foot drop and toe clearance in patients with facioscapulohumeral dystrophy. Clin Biomech (Bristol, Avon) 2023; 102:105899. [PMID: 36738507 DOI: 10.1016/j.clinbiomech.2023.105899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 01/25/2023] [Accepted: 01/25/2023] [Indexed: 02/01/2023]
Abstract
BACKGROUND Facioscapulohumeral dystrophy is a genetic disease characterized by progressive muscle weakness leading to a complex combination of postural instability, foot drop during swing and compensatory strategies during gait that have been related to an increased risk of falling. The aim is to assess the effect of tibialis anterior muscle weakness on foot drop and minimum toe clearance of patients with facioscapulohumeral dystrophy during gait. METHODS Eight patients allocated to a subgroup depending on the severity of tibialis anterior muscle weakness, assessed by manual muscle testing (i.e., severe and mild weakness), and eight matched control participants underwent gait analysis at self-selected walking speeds. FINDINGS Walking speed, for all facioscapulohumeral dystrophy patients, and step length, for patients with severe weakness only, were significantly decreased compared to control participants. Minimum toe clearance was similar across all groups, but its variability was increased only for patients with severe weakness. A greater foot drop was systematically observed for patients with severe weakness during swing and only in late swing for patients with mild weakness. Individual strategies to compensate for foot drop remain unclear and may depend on other muscle impairment variability. INTERPRETATION Although all patients were able to control the average height of their foot trajectory during swing, patients with severe tibialis anterior muscle weakness exhibited increased foot drop and minimum toe clearance variability. Manual muscle testing is a simple, cheap and effective method to assess tibialis anterior muscle weakness and seems promising to identify facioscapulohumeral dystrophy patients with an increased risk of tripping.
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Affiliation(s)
- C N Gambelli
- Physical Activity, Sport and Recreation Research Focus Area (PhASRec), Potchefstroom Campus, North-West University (NWU), Potchefstroom, South Africa; Université Côte d'Azur, LAMHESS, France; Laboratory of Physiology and Biomechanics of Locomotion, Institute of Neuroscience (IoNS), Université catholique de Louvain (UCL), Louvain-la-Neuve, Belgium.
| | - J Bredin
- Université Côte d'Azur, LAMHESS, France; Centre de Santé Institut Rossetti-PEP06, Nice, France
| | | | - J Garcia
- Université Côte d'Azur, CHU, France
| | - V Tanant
- Université Côte d'Azur, CHU, France
| | - M Fournier-Mehouas
- Université Côte d'Azur, LAMHESS, France; Université Côte d'Azur, CHU, France
| | - C Desnuelle
- Université Côte d'Azur, CNRS, Inserm, iBV, France
| | - S Sacconi
- Université Côte d'Azur, CHU, France; Université Côte d'Azur, CHU, CNRS, Inserm, IRCAN, France
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van Duijnhoven E, Koopman FS, Ploeger HE, Nollet F, Brehm MA. Effects of specialist care lower limb orthoses on personal goal attainment and walking ability in adults with neuromuscular disorders. PLoS One 2023; 18:e0279292. [PMID: 36652463 PMCID: PMC9847977 DOI: 10.1371/journal.pone.0279292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 12/04/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Lower limb orthoses intend to improve walking in adults with neuromuscular disorders (NMD). Yet, reported group effects of lower limb orthoses on treatment outcomes have generally been small and heterogeneous. We propose that guideline-based orthotic care within a multidisciplinary expert setting may improve treatment outcomes. AIM To examine the effectiveness of specialist care orthoses compared to usual care orthoses on personal goal attainment and walking ability. DESIGN Cohort study. POPULATION Adults with NMD who experienced walking problems due to calf and/or quadriceps muscle weakness and were provided with a specialist care lower limb orthosis between October 2011 and January 2021. METHODS Three months after provision, the specialist care orthosis was compared to the usual care orthosis worn at baseline in terms of personal goal attainment (Goal Attainment Scaling (GAS)), comfortable walking speed (m/s), net energy cost (J/kg/m) (both assessed during a 6-minute walk test), perceived walking ability and satisfaction. RESULTS Sixty-four adults with NMD were eligible for analysis. The specialist care orthoses comprised 19 dorsiflexion-restricting ankle-foot orthoses (AFOs), 22 stance-control knee-ankle-foot orthoses (KAFOs) and 23 locked KAFOs. Overall, 61% of subjects showed a clinically relevant improvement in GAS score. Perceived safety, stability, intensity, fear of falling and satisfaction while walking all improved (p≤0.002), and subjects were satisfied with their specialist care orthosis and the services provided. Although no effects on walking speed or net energy cost were found in combined orthosis groups, specialist care AFOs significantly reduced net energy cost (by 9.5%) compared to usual care orthoses (from mean (SD) 3.81 (0.97) to 3.45 (0.80) J/kg/m, p = 0.004). CONCLUSION Guideline-based orthotic care within a multidisciplinary expertise setting could improve treatment outcomes in adults with NMD compared to usual orthotic care by improvements in goal attainment and walking ability. A randomized controlled trial is now warranted to confirm these results.
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Affiliation(s)
- Elza van Duijnhoven
- Department of Rehabilitation Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Rehabilitation & Development, Amsterdam, The Netherlands
- * E-mail:
| | - Fieke S. Koopman
- Department of Rehabilitation Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Rehabilitation & Development, Amsterdam, The Netherlands
| | - Hilde E. Ploeger
- Department of Rehabilitation Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Rehabilitation & Development, Amsterdam, The Netherlands
| | - Frans Nollet
- Department of Rehabilitation Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Rehabilitation & Development, Amsterdam, The Netherlands
| | - Merel-Anne Brehm
- Department of Rehabilitation Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Rehabilitation & Development, Amsterdam, The Netherlands
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A single-subject comparison of functional outcomes between lower limb salvage vs. transtibial amputation through sequential participation in a fall-prevention program. Prosthet Orthot Int 2022; 46:614-618. [PMID: 36515906 DOI: 10.1097/pxr.0000000000000156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 03/14/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE Prior research has noted similar functional and subjective outcomes between individuals with delayed amputation vs. limb salvage; however, these reports are generally retrospective in nature. Here, we prospectively compare functional and subjective outcomes from an individual with limb salvage to a delayed transtibial amputation using a single-subject design with sequential participation in a fall-prevention program. MATERIALS AND METHODS The subject participated in a fall-prevention rehabilitation training program, once before undergoing a delayed transtibial amputation and again after. As part of the fall-prevention program, the participant completed pretraining and post-training assessments which quantified trunk control by 1) trunk flexion and flexion velocity after trip-inducing perturbations on a treadmill and 2) trunk sway parameters during unstable sitting. In addition, the four square step test was administered, and patient-reported outcomes, including pain, prosthetic/orthotic comfort, and walking/running endurance, were collected. RESULTS In general, the participant demonstrated improved trunk control after amputation, as evidenced by decreases in trunk flexion and flexion velocity after perturbation and sway parameters during unstable sitting. In addition, four square step test times were shorter with amputation vs. limb salvage; the participant also reported reduced pain and greater comfort with amputation (vs. limb salvage). CONCLUSIONS Although just a single participant, within-subject comparisons provide quantitative evidence that, for some individuals, delayed/late (transtibial) amputation after prolonged limb salvage may be beneficial in reducing pain and restoring function.
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5
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Alemdaroğlu-Gürbüz İ, İpek C, Bulut N, Karaduman A, Yılmaz Ö. The Impact of "Fear of Falling" on Physical Performance, Balance, and Ambulation in Duchenne Muscular Dystrophy. Neuropediatrics 2022; 53:330-337. [PMID: 36030791 DOI: 10.1055/s-0042-1750722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
OBJECTIVE The aim of this study was to investigate falls and the fear of falling (FOF) in children with Duchenne muscular dystrophy (DMD) and to determine the relationships between the FOF and physical performance, balance, and ambulation. METHODS Thirty-eight ambulatory children with DMD were included in the study. The functional level, falling history, FOF, physical performance, balance, and ambulation were assessed by using Brooke Lower Extremity Functional Classification, History of Falls Questionnaire, Pediatric Fear of Falling Questionnaire (Ped-FOF), timed performance tests, Timed "Up and Go" (TUG) test, and North Star Ambulatory Assessment (NSAA), respectively. RESULTS Of the 38 children (mean age: 9.00 ± 2.03 years) 97.4% had a history of serious fall last year and 62.2% were injured due to this fall. The Ped-FOF score was 13.79 ± 7.20. Weak to moderate relations were determined between Ped-FOF and functional level (r = 0.33), frequency of falls (r = 0.41), duration of climbing 4-steps (r = 0.38), TUG (r = 0.36), and NSAA (r = -0.32) (p < 0.05). CONCLUSION Ambulatory children with better performance scores had lower levels of FOF despite their history of serious falls and injuries. FOF tends to increase as the symptoms of the disease progresses. Investigating the history of falls and FOF from the earliest period will guide to take precautions and make necessary interventions on time in treatment programs.
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Affiliation(s)
- İpek Alemdaroğlu-Gürbüz
- Department of Physical Therapy and Rehabilitation, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Canan İpek
- Department of Physical Therapy and Rehabilitation, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Numan Bulut
- Department of Physical Therapy and Rehabilitation, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Ayşe Karaduman
- Physiotherapy and Rehabilitation Department, Faculty of Health Sciences, Lokman Hekim University, Ankara, Turkey
| | - Öznur Yılmaz
- Department of Physical Therapy and Rehabilitation, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
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Savcun Demirci C, Sütçü G, Ayvat F, Onursal Kılınç Ö, Doğan M, Ayvat E, Bekircan-Kurt CE, Erdem-Özdamar S, Yıldırım SA, Kılınç M, Tan E. Identifying A Cut-Off Point for Timed Up and Go Test in Neuromuscular Diseases. TURKISH JOURNAL OF NEUROLOGY 2022. [DOI: 10.4274/tnd.2021.84553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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7
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The Predictive Validity and Clinical Application of Stopping Elderly Accidents, Deaths & Injuries (STEADI) for Fall Risk Screening. ADVANCES IN GERIATRIC MEDICINE AND RESEARCH 2022; 4:e220008. [PMID: 36315107 PMCID: PMC9615094 DOI: 10.20900/agmr20220008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Fall prevention is critical for older adults. Stopping Elderly Accidents, Deaths, and Injuries (STEADI) is a fall prevention initiative, promoted by the Center for Disease Control (CDC). The purpose of this review aims to discuss the predictive validity, improve the predictive validity of STEADI, and apply STEADI in clinical settings.
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8
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van Duijnhoven E, Waterval NF, Koopman FS, Esquenazi A, Tyson S, Nollet F, Brehm MA. Ankle-foot orthoses for improving walking in people with calf muscle weakness due to neuromuscular disorders. Hippokratia 2021. [DOI: 10.1002/14651858.cd014871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Elza van Duijnhoven
- Amsterdam UMC, University of Amsterdam; Department of Rehabilitation Medicine, Amsterdam Movement Sciences; Amsterdam Netherlands
| | - Niels F Waterval
- Amsterdam UMC, University of Amsterdam; Department of Rehabilitation Medicine, Amsterdam Movement Sciences; Amsterdam Netherlands
| | - Fieke Sophia Koopman
- Amsterdam UMC, University of Amsterdam; Department of Rehabilitation Medicine, Amsterdam Movement Sciences; Amsterdam Netherlands
| | - Alberto Esquenazi
- Department of Rehabilitation Medicine; Jefferson University School of Medicine; Elkins Park PA USA
| | - Sarah Tyson
- Division of Nursing, Midwifery & Social Work; University of Manchester; Manchester UK
| | - Frans Nollet
- Amsterdam UMC, University of Amsterdam; Department of Rehabilitation Medicine, Amsterdam Movement Sciences; Amsterdam Netherlands
| | - Merel-Anne Brehm
- Amsterdam UMC, University of Amsterdam; Department of Rehabilitation Medicine, Amsterdam Movement Sciences; Amsterdam Netherlands
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9
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İpek C, Yilmaz Ö, Karaduman A, Alemdaroğlu-Gürbüz İ. Development of a questionnaire to assess fear of falling in children with neuromuscular diseases. J Pediatr Orthop B 2021; 30:494-499. [PMID: 32784329 DOI: 10.1097/bpb.0000000000000792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Fear of falling (FOF) indicates loss of confidence in the ability to perform daily living activities without falling. Although specific questionnaires do exist to assess FOF in different patient populations, any of them targets the pediatric patients with neuromuscular diseases which falling is a frequent symptom. This study aims to present the development of a self-report FOF questionnaire for children with neuromuscular diseases, pilot application of the questionnaire, and its preliminary psychometric properties. An International Classification of Functioning, Disability and Health (ICF)-based 'Pediatric Fear of Falling Questionnaire' for neuromuscular diseases (Ped-FOF) was created by the study team following the steps of developing an instrument. The questionnaire included 34 items which were organized based on the 'Activities and Participation' component of ICF-children and youth. Thirty children with Duchenne muscular dystrophy (DMD) were recruited to obtain preliminary reliability and validity results of the questionnaire. The mean Ped-FOF score of study population was 15.30 ± 7.03. According to the preliminary results, intraclass correlation coefficient was 0.715 [confidence interval (CI) 95%], and moderate correlations between Ped-FOF and functional performance and quality of life were determined (P < 0.05). Ped-FOF promises a practical assessment of FOF in pediatrics with neuromuscular diseases with understandable items that allow self-report of children. Ped-FOF also allows clinicians and therapists to assess FOF efficiently in limited clinical time. Its preliminary reliability and validity results are also sufficient to be used in DMD that falling is a frequent condition, which indicates that the use of questionnaire is promising in many other pediatric neuromuscular disorders.
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Affiliation(s)
- Canan İpek
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Altindağ, Ankara, Turkey
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van Duijnhoven E, Koopman FS, Tuijtelaars JAM, Altmann V, Lagrand R, van Dongen JM, Nollet F, Brehm MA. Specialised orthotic care to improve functioning in adults with neuromuscular disorders: protocol of a prospective randomised open-label blinded end-point study. BMJ Open 2020; 10:e039683. [PMID: 33444196 PMCID: PMC7678344 DOI: 10.1136/bmjopen-2020-039683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION People suffering from leg muscle weakness caused by neuromuscular disorders (NMDs) are often provided with leg orthoses to reduce walking problems such as increased walking effort, diminished walking speed, reduced balance and falls. However, evidence for the effectiveness of leg orthoses to improve walking in this patient group is limited and there is an absence of standardised practice in orthotic prescription. In 2012 a Dutch multidisciplinary guideline was developed aimed to standardise the orthotic treatment process in NMD. Although application of the guideline in expert centres (specialised orthotic care) seems beneficial regarding clinical effectiveness, larger studies are necessary to confirm results and investigate cost-effectiveness. Therefore, this study aims to examine the effectiveness and cost-effectiveness of specialised orthotic care compared with usual orthotic care in adults with slowly progressive NMD. METHODS AND ANALYSIS A prospective randomised open-label blinded end-point study will be performed, in which 70 adults with slowly progressive NMD are randomly assigned to specialised orthotic care (intervention) or usual orthotic care (control). Outcome measures are assessed at baseline and at 3 and 6 months follow-up. The primary endpoints are gross walking energy cost (J/kg/m) assessed during a 6 min walk test and achievement of personal goals, measured with the Goal Attainment Scale. Secondary endpoints include walking speed, gait biomechanics, stability, physical functioning, falls and fear of falling, perceived fatigue and satisfaction. For the economic evaluation, societal costs and health-related quality of life will be assessed using cost questionnaires and the 5-Level version of EuroQol 5 Dimension, retrospectively. ETHICS AND DISSEMINATION The study is registered in the Dutch trial register (NL 7511) and the protocol has been approved by the Medical Ethics Committee of the Academic Medical Center in Amsterdam. Results will be presented at national and international scientific conferences and disseminated through peer-reviewed journals and media aimed at a broad audience including patients.
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Affiliation(s)
- Elza van Duijnhoven
- Department of Rehabilitation Medicine, Amsterdam Movement Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Fieke Sophia Koopman
- Department of Rehabilitation Medicine, Amsterdam Movement Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Jana Antonius Maria Tuijtelaars
- Department of Rehabilitation Medicine, Amsterdam Movement Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Viola Altmann
- Klimmendaal Rehabilitation Center, Arnhem, The Netherlands
| | - Rimke Lagrand
- Department of Rehabilitation Medicine, Amsterdam Movement Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Johanna Maria van Dongen
- Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Frans Nollet
- Department of Rehabilitation Medicine, Amsterdam Movement Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Merel-Anne Brehm
- Department of Rehabilitation Medicine, Amsterdam Movement Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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Dagan M, Herman T, Bernad-Elazari H, Gazit E, Maidan I, Giladi N, Mirelman A, Manor B, Hausdorff JM. Dopaminergic therapy and prefrontal activation during walking in individuals with Parkinson's disease: does the levodopa overdose hypothesis extend to gait? J Neurol 2020; 268:658-668. [PMID: 32902733 DOI: 10.1007/s00415-020-10089-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 11/24/2022]
Abstract
The "levodopa-overdose hypothesis" posits that dopaminergic replacement therapy (1) increases performance on tasks that depend on the nigrostriatal-pathway (e.g., motor-control circuits), yet (2) decreases performance on tasks that depend upon the mesocorticolimbic-pathway (e.g., prefrontal cortex, PFC). Previous work in Parkinson's disease (PD) investigated this model while focusing on cognitive function. Here, we evaluated whether this model applies to gait in patients with PD and freezing of gait (FOG). Forty participants were examined in both the OFF anti-Parkinsonian medication state (hypo-dopaminergic) and ON state (hyper-dopaminergic) while walking with and without the concurrent performance of a serial subtraction task. Wireless functional near-infrared spectroscopy measured PFC activation during walking. Consistent with the "overdose-hypothesis", performance on the subtraction task decreased (p = 0.027) after dopamine intake. Moreover, the effect of walking condition on PFC activation depended on the dopaminergic state (i.e., interaction effect p = 0.001). Gait significantly improved after levodopa administration (p < 0.001). Nonetheless, PFC activation was higher (p = 0.013) in this state than in the OFF state during usual-walking. This increase in PFC activation in the ON state suggests that dopamine treatment interfered with PFC functioning. Otherwise, PFC activation, putatively a reflection of cognitive compensation, should have decreased. Moreover, in contrast to the OFF state, in the ON state, PFC activation failed to increase (p = 0.313) during dual-tasking, perhaps due to a "ceiling effect". These findings extend the "levodopa-overdose hypothesis" and suggest that it also applies to gait in PD patients. While dopaminergic therapy improves certain aspects of motor performance, optimal treatment should consider the "double-edged sword" of levodopa.
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Affiliation(s)
- Moria Dagan
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Talia Herman
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Hagar Bernad-Elazari
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Eran Gazit
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Inbal Maidan
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.,Department of Neurology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nir Giladi
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.,Department of Neurology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Anat Mirelman
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.,Department of Neurology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Brad Manor
- Harvard Medical School, Boston, MA, USA.,Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Roslindale, MA, USA
| | - Jeffrey M Hausdorff
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel. .,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel. .,Department of Physical Therapy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. .,Department of Orthopedic Surgery, Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, USA.
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12
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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: 46] [Impact Index Per Article: 11.5] [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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Haulman A, Geronimo A, Chahwala A, Simmons Z. The Use of Telehealth to Enhance Care in ALS and other Neuromuscular Disorders. Muscle Nerve 2020; 61:682-691. [PMID: 32297678 PMCID: PMC10797583 DOI: 10.1002/mus.26838] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 12/14/2022]
Abstract
Telehealth has the potential to improve the efficiency of healthcare while reducing the burden on patients and caregivers. Encounters can be synchronous or asynchronous. When used for care of those with amyotrophic lateral sclerosis (ALS) by individual health care providers or by a multidisciplinary team, synchronous telehealth is feasible, acceptable, may produce outcomes comparable to those of in-person care, and is cost effective. Individuals with ALS who use telehealth tend to have lower physical and respiratory function and to live farther from an ALS clinic than those who exclusively attend in-person clinic visits. Asynchronous telehealth can be used as a substitute full multidisciplinary visits, or for remote monitoring of pulmonary function, gait/falls, and speech. Barriers to implementing telehealth on a wider scale include disparities in access to technology and challenges surrounding medical licensure and billing, but these are being addressed.
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Affiliation(s)
- Anne Haulman
- Department of Neurology, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - Andrew Geronimo
- Department of Neurosurgery, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - Amit Chahwala
- Department of Virtual Health, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - Zachary Simmons
- Department of Neurology, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania
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Berends J, Tieleman AA, Horlings CGC, Smulders FHP, Voermans NC, van Engelen BGM, Raaphorst J. High incidence of falls in patients with myotonic dystrophy type 1 and 2: A prospective study. Neuromuscul Disord 2019; 29:758-765. [PMID: 31540818 DOI: 10.1016/j.nmd.2019.08.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 08/14/2019] [Accepted: 08/21/2019] [Indexed: 01/01/2023]
Abstract
We aimed to examine the incidence as well as the circumstances and the consequences of falling in adult patients with myotonic dystrophy type 1 and 2 (DM1/DM2). We performed a prospective cohort study in 209 subjects, of which 102 had DM1, 42 had DM2 and 65 healthy controls. An assessment of their falls was carried out during 100 consecutive days. In addition, falls during the previous year were reported. The primary outcome measure was the number of self-reported falls per participant during these 100 days. The secondary outcome measures included self-reported causes, circumstances and consequences of the falls. Mean (SD) falls per participant in 100 days was seven- to eightfold higher in patients with DM1 (0.74 (0.14)) and DM2 (0.62 (0.20)) compared to the controls (0.09 (0.04); p < 0.001)). Sixteen percent of DM1 and 17% of DM2 patients fell at least twice. Two-thirds of the falls occurred inside. Fifty percent of falls resulted in an injury, including a head trauma in four patients. Compared to non-fallers, those patients who fell were older (DM1/DM2), had a lower DM1-Activ score (DM1), had more muscle weakness (DM1), and reported less confidence in balance (DM1). This study demonstrates a high incidence and clinical relevance of falling in patients with DM1 and DM2. Fall prevention strategies in both DM1 and DM2 should focus on adaptations of the home environment and the patient's interaction in this environment.
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Affiliation(s)
- Joost Berends
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Alide A Tieleman
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Corinne G C Horlings
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands; Department of Neurology, Medical University Innsbruck, Austria.
| | - Fran H P Smulders
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Nicol C Voermans
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Baziel G M van Engelen
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Joost Raaphorst
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands; Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, Amsterdam, Netherlands
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15
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Kennedy RA, Carroll K, Hepworth G, Paterson KL, Ryan MM, McGinley JL. Falls in paediatric Charcot-Marie-Tooth disease: a 6-month prospective cohort study. Arch Dis Child 2019; 104:535-540. [PMID: 30104392 DOI: 10.1136/archdischild-2018-314890] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 06/07/2018] [Accepted: 07/16/2018] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To prospectively study falls in children and adolescents with Charcot-Marie-Tooth disease (CMT). DESIGN Prospective cohort study. SETTING Neuromuscular outpatient clinic of a tertiary paediatric hospital. PATIENTS Sixty children and adolescents ('children') aged 4-18 years, 30 with CMT and 30 typically developing (TD). MAIN OUTCOME MEASURES Falls rate over 6 months and falls characteristics questionnaire. RESULTS Twenty-two children with CMT reported falling at least once in 6 months compared with eight TD children (CMT 2819 (0-1915), TD 31 (0-6) total falls (range)). Detailed falls characteristics were collected from 242 individual falls (CMT 216, TD 26). Injurious falls were reported by 19 children with CMT (74 falls) compared with 2 TD children (3 falls), with cuts, grazes and bruising most common. No fractures were sustained and no child required hospitalisation. However, 12 injuries from falls in children with CMT required management by a healthcare provider, versus none in TD children. Tripping was the most common mechanism of falls in both groups. Age was the strongest predictor of falls (ρ=-0.53, p=0.006) with all children (CMT and TD) aged <7 years falling. Balance was the strongest impairment-related predictor of falls (ρ=-0.47, p=0.02). The conservative estimate of risk of falls in children and adolescents with CMT was 33 times higher than their TD peers (incidence rate ratio=32.8, 95% CI 10.2 to 106.0). CONCLUSIONS Children and adolescents with CMT fall more often than TD peers and sustain more injuries when they fall.
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Affiliation(s)
- Rachel A Kennedy
- Neurology Department, The Royal Children's Hospital, Parkville, Victoria, Australia.,Physiotherapy Department, The University of Melbourne, Parkville, Victoria, Australia.,Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Kate Carroll
- Neurology Department, The Royal Children's Hospital, Parkville, Victoria, Australia.,Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Graham Hepworth
- Statistical Consulting Centre, The University of Melbourne, Parkville, Victoria, Australia
| | - Kade L Paterson
- Physiotherapy Department, The University of Melbourne, Parkville, Victoria, Australia
| | - Monique M Ryan
- Neurology Department, The Royal Children's Hospital, Parkville, Victoria, Australia.,Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Parkville, Victoria, Australia
| | - Jennifer L McGinley
- Physiotherapy Department, The University of Melbourne, Parkville, Victoria, Australia.,Murdoch Children's Research Institute, Parkville, Victoria, Australia
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Jiménez-Moreno A, Raaphorst J, Babačić H, Wood L, van Engelen B, Lochmüller H, Schoser B, Wenninger S. Falls and resulting fractures in Myotonic Dystrophy: Results from a multinational retrospective survey. Neuromuscul Disord 2018; 28:229-235. [DOI: 10.1016/j.nmd.2017.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/13/2017] [Accepted: 12/20/2017] [Indexed: 10/18/2022]
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Abstract
Polyneuropathies are common neurologic disorders affecting the peripheral nerves. There are a number of causes of damage to these structures, such as genetic and metabolic factors, autoimmune disorders, infection, drug or environmental toxicity, and malignancy. Motor and sensory impairments are commonly encountered in these conditions, leading to altered balance and gait with increased risk of falling. Diabetic neuropathy is the most common cause of peripheral nerve disease and extensive investigation of balance and walking function revealed greater postural instability and delayed activation of distal muscles during walking. Although classically thought to be due to sensory impairment, it is now recognized that a motor contribution to balance and gait impairment cannot be ruled out in diabetic neuropathy. Inflammatory and inherited neuropathies have had less investigation. Variations in static and dynamic balance and depend on the sensory afferents affected and the degree of motor impairment. Motor impairment is a major contributor to alterations in gait pattern. Exercise is an effective rehabilitation approach that can improve muscle strength and postural responses. The gains can carry over into improved functional balance and walking. Orthotic interventions are also promising in supporting joints where there is significant muscle weakness, but newer devices are being developed that provide sensory feedback, e.g., vibration, which may be effective where sensory impairment is a key contributor to postural instability.
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Affiliation(s)
- Gita Ramdharry
- Faculty of Health, Social Care and Education, Kingston University and Queen Square MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, United Kingdom.
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Dharmadasa T, Matamala JM, Huynh W, Zoing MC, Kiernan MC. Motor neurone disease. HANDBOOK OF CLINICAL NEUROLOGY 2018; 159:345-357. [PMID: 30482326 DOI: 10.1016/b978-0-444-63916-5.00022-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Motor neurone disease (MND) patients exhibit poor gait, balance, and postural control, all of which significantly increases their risk of falling. Falls are frequent in the MND population, and are associated with an increased burden of disease. The complex interplay of both motor and extramotor manifestations in this disease contributes to the heterogeneous and multifactorial causes of such dysfunction. This review highlights the pathophysiologic influence of motor degeneration in gait disturbance, but also the additional influence on postural instability from other inputs such as cognitive impairment, autonomic dysregulation, cerebellar dysfunction, sensory impairment, and extrapyramidal involvement. In various combinations, these impairments are responsible for reduced gait speed and alteration in gait cycle, as well as structurally more variable and disorganized gait patterns. Based on these features, this chapter will also provide disease-specific interventions to assess, manage, and prevent falls in the MND cohort.
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Affiliation(s)
| | | | - William Huynh
- Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia; Prince of Wales Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - Margaret C Zoing
- Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia
| | - Matthew C Kiernan
- Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia.
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19
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Ramdharry GM, Reilly-O'Donnell L, Grant R, Reilly MM. Frequency and circumstances of falls for people with Charcot-Marie-Tooth disease: A cross sectional survey. PHYSIOTHERAPY RESEARCH INTERNATIONAL 2017; 23:e1702. [DOI: 10.1002/pri.1702] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 09/15/2017] [Accepted: 11/14/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Gita M. Ramdharry
- Faculty of Health Social Care and Education; St George's University of London/Kingston University; London UK
- Queen Square Centre for Neuromuscular Diseases, Department of Molecular Neurosciences; UCL Institute of Neurology/University College London NHS Foundation Trust; London UK
| | - Louise Reilly-O'Donnell
- Faculty of Health Social Care and Education; St George's University of London/Kingston University; London UK
| | - Robert Grant
- Faculty of Health Social Care and Education; St George's University of London/Kingston University; London UK
| | - Mary M. Reilly
- Queen Square Centre for Neuromuscular Diseases, Department of Molecular Neurosciences; UCL Institute of Neurology/University College London NHS Foundation Trust; London UK
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20
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Hajek A, König HH. The association of falls with loneliness and social exclusion: evidence from the DEAS German Ageing Survey. BMC Geriatr 2017; 17:204. [PMID: 28874139 PMCID: PMC5584003 DOI: 10.1186/s12877-017-0602-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 08/24/2017] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND It remains an open question whether falls are related with social relations, covering subjective (e.g., perceived loneliness) and more objective dimensions (e.g., number of important individuals in regular contact). Consequently, we aimed at examining the association between falls and social ties comprehensively, including loneliness, social exclusion and the number of important people in regular contact. METHODS Cross-sectional data were used from a population-based sample of community-dwelling individuals aged 40 and over (n = 7808) in Germany. Self-rated loneliness was quantified using a short version of the De Jong Gierveld Loneliness Scale. Perceived social exclusion was measured using a scale developed by Bude and Lantermann. Furthermore and in contrast to the subjective outcome measures, the more objective number of important people in regular contact was also used as outcome variable. The experience of a fall in the preceding 12 months (yes; no) was assessed. RESULTS Controlling for various possible confounding variables, linear regressions showed that experiencing a fall in the past 12 months was associated with higher social exclusion (β = .08, p < .001), and increased loneliness (β = .08, p < .001), whereas it was not associated with the number of important people in regular contact. CONCLUSIONS Findings stress the relation between falls and feelings of loneliness and social exclusion, whereas falls were unrelated to the more objective measure of number of important people in regular contact, suggesting that falls are particularly related to subjective measures of social ties and relations. This underlines the importance of interventions to prevent falls. Preventing falls in turn might help to prevent loneliness and social exclusion.
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Affiliation(s)
- André Hajek
- Department of Health Economics and Health Services Research, Hamburg Center for Health Economics, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Hans-Helmut König
- Department of Health Economics and Health Services Research, Hamburg Center for Health Economics, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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21
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Ramdharry GM, Thornhill A, Reilly MM, Marsden JF. The experience of falls and balance impairment for people with Charcot-Marie-Tooth disease. INTERNATIONAL JOURNAL OF THERAPY AND REHABILITATION 2017. [DOI: 10.12968/ijtr.2017.24.7.306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gita M Ramdharry
- Associate professor, School of Allied Health, Midwifery and Social Work, Kingston University/St George's University of London, Cranmer Terrace, London, UK
| | - Anna Thornhill
- Clinical and research physiotherapist, Solent NHS Trust, Portsmouth, UK
| | - Mary M Reilly
- Professor of Clinical Neurology, MRC Centre for Neuromuscular Diseases, Department of Molecular Neurosciences, UCL Institute of Neurology, London, UK
| | - Jonathan F Marsden
- Professor of Rehabilitation, School of Health Professions, University of Plymouth, UK
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22
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Jacobs JV. A review of stairway falls and stair negotiation: Lessons learned and future needs to reduce injury. Gait Posture 2016; 49:159-167. [PMID: 27427833 DOI: 10.1016/j.gaitpost.2016.06.030] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 05/27/2016] [Accepted: 06/23/2016] [Indexed: 02/02/2023]
Abstract
Stairways are a common location for falls, and they result in a disproportionate risk of death or severe injury. Stairway falls are a significant problem across the lifespan and are often coincident with risky behaviors during stair use. The mechanics of successful stair negotiation for healthy young and older adults have been well described. These studies imply that current stair design does not offer an optimal universal design to meet the needs of older adults or people with health conditions. In addition, impaired stair negotiation associates with more than impaired strength, including functional impairments of cognitive load, sensory function and central motor coordination. Identification of behavioral strategies or stairway environments that assist or hinder recovery from a loss of balance on stairs remains incomplete. Therefore, future studies should investigate the mechanisms of balance recovery on stairs as well as the effectiveness of environmental interventions to mitigate stairway falls and injuries. Potential areas for evaluation may include modifying stair dimensions, surfaces, handrails, visual cues, and removing distractors of attention. Studies should also evaluate combinatorial interventions on person-related factors, such as behavioral interventions to decrease risky behaviors during stair use as well as interventions on cognitive, sensory, and motor functions relevant to stair use. Moreover, future studies should take advantage of new technologies to record stair use outside the laboratory in order to identify people or locations at risk for stairway falls. Such studies would inform the potential for broad-spectrum programs that decrease the risk of stairway falls and injuries.
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Affiliation(s)
- Jesse V Jacobs
- Center for Physical Ergonomics, Liberty Mutual Research Institute for Safety, 71 Frankland Rd., Hopkinton, MA, 01748, USA.
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23
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Dynamic stability during level walking and obstacle crossing in persons with facioscapulohumeral muscular dystrophy. Gait Posture 2015; 42:295-300. [PMID: 26130572 DOI: 10.1016/j.gaitpost.2015.06.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 05/06/2015] [Accepted: 06/12/2015] [Indexed: 02/02/2023]
Abstract
Patients with FSHD suffer from progressive skeletal muscle weakness, which is associated with an elevated fall risk. To obtain insight into fall mechanisms in this patient group, we aimed to assess dynamic stability during level walking and obstacle crossing in patients at different disease stages. Ten patients with at least some lower extremity weakness were included, of whom six were classified as moderately affected and four as mildly affected. Ten healthy controls were also included. Level walking at comfortable speed was assessed, as well as crossing a 10 cm high wooden obstacle. We assessed forward and lateral dynamic stability, as well as spatiotemporal and kinematics variables. During level walking, the moderately affected group demonstrated a lower walking speed, which was accompanied by longer step times and smaller step lengths, yet dynamic stability was unaffected. When crossing the obstacle, however, the moderately affected patients demonstrated reduced forward stability margins during the trailing step, which was accompanied by an increased toe clearance and greater trunk and hip flexion. This suggests that during level walking, the patients effectively utilized compensatory strategies for maintaining dynamic stability, but that the moderately affected group lacked the capacity to fully compensate for the greater stability demands imposed by obstacle crossing, rendering them unable to maintain optimal stability levels. The present results highlight the difficulties that FSHD patients experience in performing this common activity of daily living and may help explain their propensity to fall in the forward direction.
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Kaya P, Alemdaroğlu İ, Yılmaz Ö, Karaduman A, Topaloğlu H. Effect of muscle weakness distribution on balance in neuromuscular disease. Pediatr Int 2015; 57:92-7. [PMID: 24978611 DOI: 10.1111/ped.12428] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 05/07/2014] [Accepted: 06/04/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND To assess balance and identify the effects of muscle weakness distribution on balance in children with different neuromuscular diseases. METHODS Forty ambulant, pediatric patients with neuromuscular disease were enrolled in the study. Patients were separated into two groups according to muscle weakness distribution as group 1 (proximal) and group 2 (distal). Demographic data were recorded. Functional level (Brooke lower extremity functional classification), muscular strength (manual muscle testing), balance (pediatric functional reach test [PFRT], timed up-and-go test [TUGT], stabilometric platform) and functional performance (6 min walk test [6MWT]) were assessed. RESULTS Group 1 consisted of 20 Duchenne muscular dystrophy patients, and group 2, of 20 neuropathy patients. The total lower, upper limbs and trunk muscles muscle strength (P < 0.05); forward and right side reach subsections of the sitting position, and PFRT total score (P < 0.01) were significantly different between the groups. TUGT results were 7.79 ± 1.54 s and 10.13 ± 2.63 s, respectively, in group 1 and 2 (z = -2950; P < 0.01). No statistically significant difference between groups in any performance parameters of the 6MWT was found (P ≥ 0.05). Anterior body balance was found to be dominant in group 1, while posterior body balance was dominant in group 2 (P ≤ 0.05) measured by stabilometric platform. CONCLUSIONS The distal group was particularly affected regarding dynamic balance, and the proximal group regarding static balance. Muscle strength was important for providing dynamic stability in the distal group, and for maintaining proximal stabilization during dynamic activities in the proximal group.
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Affiliation(s)
- Pınar Kaya
- Physiotherapy and Rehabilitation Department, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey
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25
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Rijken NHM, van Engelen BGM, de Rooy JWJ, Geurts ACH, Weerdesteyn V. Trunk muscle involvement is most critical for the loss of balance control in patients with facioscapulohumeral muscular dystrophy. Clin Biomech (Bristol, Avon) 2014; 29:855-60. [PMID: 25156185 DOI: 10.1016/j.clinbiomech.2014.07.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 07/25/2014] [Accepted: 07/30/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND Although it is known that muscle weakness is a major cause of postural instability and leads to an increased incidence of falls in patients with neuromuscular disease, the relative contribution of lower extremity and trunk muscle weakness to postural instability has not been studied well. METHODS We determined the relationship between muscle fatty infiltration and sagittal-plane balance in ten patients with facioscapulohumeral muscular dystrophy. Sagittal-plane platform translations were imposed in forward and backward directions on patients with facioscapulohumeral muscular dystrophy and healthy controls. Stepping thresholds were determined and kinematic responses and center-of-mass displacements were assessed using 3 dimensional motion analysis. In the patients, magnetic resonance imaging was used to determine the amount of fatty infiltration of trunk and lower extremity muscles. FINDINGS Stepping thresholds in both directions were decreased in patients compared to controls. In patients, significant correlations were found for fatty infiltration of ventral muscles with backward stepping threshold and for fatty infiltration of dorsal muscles with forward stepping threshold. Fatty infiltration of the rectus abdominis and the back extensors explained the largest part of the variance in backward and forward stepping thresholds, respectively. Center-of-mass displacements were dependent on intensity and direction of perturbation. Kinematic analysis revealed predominant ankle strategies, except in patients with lumbar hyperlordosis. INTERPRETATION These findings indicate that trunk muscle involvement is most critical for loss of sagittal-plane postural balance in patients with facioscapulohumeral muscular dystrophy. This insight may help to develop rehabilitation strategies to prevent these patients from falling.
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Affiliation(s)
- N H M Rijken
- Department of Rehabilitation, Radboud University Medical Centre, Nijmegen, The Netherlands.
| | - B G M van Engelen
- Department of Neurology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - J W J de Rooy
- Department of Radiology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - A C H Geurts
- Department of Rehabilitation, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - V Weerdesteyn
- Department of Rehabilitation, Radboud University Medical Centre, Nijmegen, The Netherlands
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26
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Williams S, Heron L, France K, Mulrooney P, Edmondston SJ. Huntington's Disease: Characteristics of Fallers. PHYSIOTHERAPY RESEARCH INTERNATIONAL 2014. [PMID: 24677581 DOI: 10.1002/pri.1577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 09/19/2013] [Accepted: 11/10/2013] [Indexed: 02/28/2024]
Abstract
INTRODUCTION Individuals with Huntington's disease have a high prevalence of falls, but the specific factors that may increase the risk of falling have not been clearly identified in this clinical population. This study aimed to identify the characteristics of individuals with early to mid-stage Huntington's disease who had a history of falls, compared with a cohort with no history of falls. METHODS Twenty-four participants (10 non-fallers and 14 recurrent fallers) with a diagnosis of early to mid-stage Huntington's disease were included in this study. Falls data were collected using retrospective survey analysis. Participants were assessed using measures of balance (Berg Balance Scale), mobility (Rivermead mobility index [RMI]), fear of falling (Activity-specific Balance Confidence Scale) and gait (6-min walk test; 10-m walk test self-paced and dual tasking). RESULTS There was no difference in severity of disease state between fallers (Unified Huntington Disease Rating Scale [UHDRS] motor 25.33) and non-fallers (UHDRS motor 25.13) (p = 0.97). The prevalence of falls was high with 66.7% of participants reporting at least one fall and 58.3% reporting two or more falls in the past 12 months. There was no difference in age or gender between recurrent fallers and non-fallers. Recurrent fallers had significantly lower scores on the Activity-specific Balance Confidence Scale (p < 0.01) and the RMI (p < 0.05). The probability of falling increases rapidly with a RMI score of less than 10. DISCUSSION Recurrent falls are common in people with Huntington's disease. Individuals with a history of falls were found to have a greater fear of falling and lower functional mobility performance than those who did not have a history of falls. These measures may be useful in the identification of individuals with Huntington's disease who might benefit from a falls prevention programme. Copyright © 2014 John Wiley & Sons, Ltd.
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Affiliation(s)
- Shannon Williams
- Physiotherapy Program, School of Exercise and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
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27
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Wang WJ, Shi HF, Chen DY, Chen YX, Wang JF, Wang SF, Qiu Y, Xiong J. Distal femoral fractures in post-poliomyelitis patients treated with locking compression plates. Orthop Surg 2013; 5:118-23. [PMID: 23658047 DOI: 10.1111/os.12035] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 01/06/2013] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE Treatment of distal femoral fracture in post-polio patients is difficult because the bone is usually osteopenic, small and deformed. This retrospective study aimed to investigate the outcomes of distal femoral fracture in post-polio patients treated by locking compression plates (LCP). METHODS The medical records of 19 post-polio patients (mean age 49 years at time of surgery) were reviewed and intraoperative data retrieved. Fracture union and callus formation were evaluated on radiographs taken at each postoperative visit. Functional outcome assessments included range of motion and Hospital for Special Surgery (HSS) score of the ipsilateral knee joint. RESULTS Sixteen femoral fractures occurred in the poliomyelitis-affected limbs. The mean duration of operation was 86 min and mean blood loss 120 mL. All fractures healed (mean, four months) but union was delayed in one. At the final follow-up 2 yrs after surgery, the mean range of knee flexion was 105° (range, 90°-130°), and mean HSS score 76 points (range, 60-93). There were no cases of nonunion, implant cutout, or other complications. CONCLUSIONS LCP provides stable fixation of distal femoral fractures in post-polio patients. Bony union and good functional outcomes are achieved, but delayed union and minimal callus may occur.
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Affiliation(s)
- Wei-jun Wang
- Department of Orthopaedics, The Affiliated Drum Tower Hospital of Nanjing University Medical School, China
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Saverino A, Moriarty A, Playford D. The risk of falling in young adults with neurological conditions: a systematic review. Disabil Rehabil 2013; 36:963-77. [DOI: 10.3109/09638288.2013.829525] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Hiscock A, Dewar L, Parton M, Machado P, Hanna M, Ramdharry G. Frequency and circumstances of falls in people with inclusion body myositis: a questionnaire survey to explore falls management and physiotherapy provision. Physiotherapy 2013; 100:61-5. [PMID: 23954023 DOI: 10.1016/j.physio.2013.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Accepted: 06/11/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVES To survey the incidence and circumstances of falls for people with inclusion body myositis (IBM) in the UK, and to investigate the provision of physiotherapy and falls management. DESIGN Postal questionnaire survey. SETTING Participants completed questionnaires at home. PARTICIPANTS Ninety-four people diagnosed with IBM were screened against the inclusion criteria. Seventy-two potential participants were sent a questionnaire, and 62 were completed and returned. Invited participants were sent an adapted Falls Event Questionnaire pertaining to falls, perceived causes of falls and the provision of physiotherapy. Questionnaires were returned anonymously. MAIN OUTCOME MEASURES The proportions of respondents who reported a fall or a near fall, along with the frequencies of falls and near falls were calculated. Descriptive data of falls were collected pertaining to location and cause. Data analysis was performed to investigate provision of physiotherapy services. RESULTS The response rate was 86% [62/72, mean (standard deviation) age 68 (8) years]. Falls were reported by 98% (61/62) of respondents, with 60% (37/62) falling frequently. In this study, age was not found to be an indicator of falls risk or frequency. Twenty-one percent (13/62) of respondents had not seen a physiotherapist in relation to their IBM symptoms, and of those that had, 31% (15/49) had not seen a physiotherapist until more than 12 months after IBM was diagnosed. Only 18% (11/61) of fallers reported that they had received falls management input. CONCLUSIONS Falls are a common occurrence for people with IBM, independent of age and years since symptoms first presented, and are poorly addressed by appropriate physiotherapy management. National falls guidelines are not being followed, and referral rates to physiotherapy need to improve.
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Affiliation(s)
- A Hiscock
- MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - L Dewar
- MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - M Parton
- MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - P Machado
- MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - M Hanna
- MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - G Ramdharry
- School of Rehabilitation Sciences, Faculty of Health and Social Care Sciences, St George's University of London/Kingston University, London, UK.
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Morgan PE, McGinley JL. Falls, fear of falling and falls risk in adults with cerebral palsy: A pilot observational study. EUROPEAN JOURNAL OF PHYSIOTHERAPY 2013. [DOI: 10.3109/21679169.2013.795241] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Lalli P, Chan A, Garven A, Midha N, Chan C, Brady S, Block E, Hu B, Toth C. Increased gait variability in diabetes mellitus patients with neuropathic pain. J Diabetes Complications 2013; 27:248-54. [PMID: 23218484 DOI: 10.1016/j.jdiacomp.2012.10.013] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 10/25/2012] [Accepted: 10/28/2012] [Indexed: 11/18/2022]
Abstract
AIMS Gait dysfunction in subjects with diabetes mellitus (DM) contributes to falling and subsequent injuries. Using a portable device (GaitMeter™), we measured gait parameters in DM patients with and without diabetic peripheral neuropathy (DPN) during flat surface walking. We hypothesized that DM patients with DPN and neuropathic pain (NeP) would have greater gait step variability than those with DPN without NeP. METHODS Subjects with DPN and at least moderate NeP (DPN-P), DPN without NeP (DPN-NoP), DM without DPN, and control subjects without DM were assessed. Our outcome measure was gait variability for step length and velocity. DPN severity was quantified using the Toronto Clinical Scoring System and the Utah Early Neuropathy Score. Falls and their outcomes were retrospectively quantified. RESULTS Each cohort contained≥20 subjects. Durations of DM and HbA1C were greatest amongst DPN cohorts. DPN-P participants had greater variability of step length and step velocity, except for DM only participants. DPN-P participants also reported greater risk of hospitalizations for fall-related injuries, and greater fear of falling. Modest negative relationships emerged for step length with step velocity, reported falls and pain severity. CONCLUSIONS NeP contributes to gait variability, potentially contributing to the risk of falling in DM patients.
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Affiliation(s)
- Paul Lalli
- Department of Clinical Neurosciences, the Hotchkiss Brain Institute and the University of Calgary, Calgary, AB, Canada
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Abresch RT, Carter GT, Han JJ, McDonald CM. Exercise in neuromuscular diseases. Phys Med Rehabil Clin N Am 2013; 23:653-73. [PMID: 22938880 DOI: 10.1016/j.pmr.2012.06.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This article reviews the current knowledge regarding the benefits and contraindications of exercise on individuals with neuromuscular diseases (NMDs). Specific exercise prescriptions for individuals with NMDs do not exist because the evidence base is limited. Understanding the effect of exercise on individuals with NMDs requires the implementation of a series of multicenter, randomized controlled trials that are sufficiently powered and use reliable and valid outcome measures to assess the effect of exercise interventions-a major effort for each NMD. In addition to traditional measures of exercise efficacy, outcome variables should include measures of functional status and health-related quality of life.
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Affiliation(s)
- R Ted Abresch
- Department of Rehabilitation Medicine, University of California, Davis, 4860 Y Street Suite, 3850, Sacramento, CA 95817, USA.
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The contribution of postural control and bilateral coordination to the impact of dual tasking on gait. Exp Brain Res 2013; 226:81-93. [PMID: 23371748 DOI: 10.1007/s00221-013-3412-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 01/08/2013] [Indexed: 10/27/2022]
Abstract
The simultaneous performance of a cognitive task while walking typically alters the gait pattern. In some populations, these alterations have been associated with an increased risk of falls, motivating study of this response from the clinical perspective. The mechanisms responsible for these effects are not fully understood. The concurrent requirement to control upright posture and stepping, a bilaterally coordinated rhythmic task, may be the cause of this so-called dual-tasking effect. To evaluate this possibility, the present study was designed to isolate the individual contribution of these two demands by assessing the effects of cognitive loading on standing (i.e., postural control without bilateral coordination of stepping), cycling (i.e., bilateral coordination similar to stepping, but with minimal postural demands), and walking. We also investigated the effects of aging and parkinsonism on the performance of these three tasks in response to cognitive loading, also referred to as a dual task. Twenty-one healthy young adults, 15 healthy older adults, and 18 patients with Parkinson's disease were assessed while walking, standing, and cycling, with and without an additional cognitive load. In the young adults, the performance on the two motor tasks that involved bilateral coordination deteriorated significantly in response to the dual task, while standing was not impacted. Similar results, although less robust, were observed among the healthy older adults. In contrast, among the patients with Parkinson's disease, the dual-task costs, i.e., the impact of the simultaneously performed cognitive task on the gait pattern, were high in all motor tasks. These findings suggest that walking is especially vulnerable to cognitive loading, in part, because of the unique sensitivity of bilateral coordination of limb movements to the effects of dual tasking.
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Montes J, Mcisaac TL, Dunaway S, Kamil-Rosenberg S, Sproule D, Garber CE, De vivo DC, Rao AK. Falls and spinal muscular atrophy: Exploring cause and prevention. Muscle Nerve 2012; 47:118-23. [DOI: 10.1002/mus.23656] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2012] [Indexed: 11/09/2022]
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El-Sayed Khalil A. Locked plating for femoral fractures in polio patients. Arch Orthop Trauma Surg 2010; 130:1299-304. [PMID: 20532900 DOI: 10.1007/s00402-010-1126-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Indexed: 11/28/2022]
Abstract
BACKGROUND Femoral fractures in polio survivors present unique challenges; the bone is often small, deformed, osteoporotic and hypovascularized. Locked compression plating aided in achieving a better construct stability of osteoporotic fractures. METHODS A total of 13 unilateral femoral fractures in adult polio patients were fixed with locked compression plating in a prospective study. Mean age was 49.8 years (range 34-62). In 6 cases, the small size of the bone matched only narrow plates, and in 6 cases the plate was contoured to fit the cortex. Average follow-up period was 18.4 months (range 12-24). RESULTS Radiological evidence of union was apparent in 12 cases after 12-20 weeks (mean 16.3). One case was considered ununited after 28 weeks and progressed to union with bone grafting after another 12 weeks. At the end of the follow-up period, 12 patients returned to their prefracture Vignos disability scale, only the case that experienced nonunion showed functional deterioration. CONCLUSION The locked compression plate withstood fixing femoral fractures in polio patients, addressing the challenges of a smaller, osteoporotic, less vascularized and sometimes deformed femur.
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Affiliation(s)
- Ayman El-Sayed Khalil
- Department of Orthopedic Surgery, Faculty of Medicine, Tanta University, El-Geish st., Tanta, Egypt.
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Horlings C, Küng U, van Engelen B, Voermans N, Hengstman G, van der Kooi A, Bloem B, Allum J. Balance control in patients with distal versus proximal muscle weakness. Neuroscience 2009; 164:1876-86. [DOI: 10.1016/j.neuroscience.2009.09.063] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Revised: 09/22/2009] [Accepted: 09/24/2009] [Indexed: 11/29/2022]
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Horlings CGC, van Engelen BGM, Allum JHJ, Bloem BR. A weak balance: the contribution of muscle weakness to postural instability and falls. ACTA ACUST UNITED AC 2009; 4:504-15. [PMID: 18711425 DOI: 10.1038/ncpneuro0886] [Citation(s) in RCA: 145] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2008] [Accepted: 07/16/2008] [Indexed: 01/05/2023]
Abstract
Muscle strength is a potentially important factor contributing to postural control. In this article, we consider the influence of muscle weakness on postural instability and falling. We searched the literature for research evaluating muscle weakness as a risk factor for falls in community-dwelling elderly individuals, for evidence that strength training reduces falls, and for pathophysiological evidence from patients with neuromuscular disease that supports the link between muscle weakness and falls. In virtually all studies that included strength testing, muscle weakness was a consistent risk factor for falls in the elderly. Studies that evaluated the merits of muscle strength training often showed a reduction in fall rates, particularly when strength training was a component of a multifactorial intervention, although it was unclear whether strength training alone led to a fall reduction. Surprisingly few studies addressed the pathophysiological relationship between muscle strength and balance control. We conclude that muscle weakness is an important risk factor for falls that is potentially amenable to therapeutic intervention, and that future studies should further clarify the role of muscle weakness in balance control and the pathophysiology of falls.
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Affiliation(s)
- Corinne G C Horlings
- Department of Neurology, Donders Centre for Neuroscience, Radboud University, Nijmegen Medical Centre, Nijmegen, The Netherlands
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Grimbergen YA, Knol MJ, Bloem BR, Kremer BP, Roos RA, Munneke M. Falls and gait disturbances in Huntington's disease. Mov Disord 2008; 23:970-976. [DOI: 10.1002/mds.22003] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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