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Postural stability and parkinson's disease

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https://www.readbyqxmd.com/read/29748111/dat-spect-imaging-in-cases-of-drug-induced-parkinsonism-in-a-specialty-movement-disorders-practice
#1
Jacob Yomtoob, Kimberly Koloms, Danny Bega
OBJECTIVE: Compare clinical characteristics and outcomes in cases where DAT-SPECT imaging is used to distinguish Parkinson's disease from Drug-Induced Parkinsonsim. BACKGROUND: Clinical uncertainty in diagnosing Parkinson's disease is common when patients are on dopamine-blocking medications. DAT-SPECT imaging can improve diagnostic certainty but little data are available on clinical characteristics and outcomes associated with normal and abnormal scan results. METHODS: Retrospective chart review of patients seen at a movement disorders center between 2011 and 2017 where DAT-SPECT was ordered to distinguish Parkinson's disease from Drug-induced Parkinsonism...
May 5, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29737443/romberg-ratio-coefficient-in-quiet-stance-and-postural-control-in-parkinson-s-disease
#2
Teresa Paolucci, Marco Iosa, Giovanni Morone, Matteo Delle Fratte, Stefano Paolucci, Vincenzo M Saraceni, Ciro Villani
The aim of this study was to determine the function of visual afference in postural control in Parkinson patients. We enrolled 29 patients and 30 healthy controls. The stabilometry test was performed for posture and balance and Romberg ratio coefficients were calculated. In addition, the Berg Balance Scale and the 6-Minute Walking Test were administered to assess balance and functional exercise capacity; the Unified Parkinson's Disease Rating Scale was used to determine the stage of the disease; and the Short Form (SF)-36 Health Survey was given to collect information on quality of life...
May 8, 2018: Neurological Sciences
https://www.readbyqxmd.com/read/29706993/instrumental-or-physical-exercise-rehabilitation-of-balance-improves-both-balance-and-gait-in-parkinson-s-disease
#3
Marica Giardini, Antonio Nardone, Marco Godi, Simone Guglielmetti, Ilaria Arcolin, Fabrizio Pisano, Marco Schieppati
We hypothesised that rehabilitation specifically addressing balance in Parkinson's disease patients might improve not only balance but locomotion as well. Two balance-training protocols (standing on a moving platform and traditional balance exercises) were assessed by assigning patients to two groups (Platform, n = 15, and Exercises, n = 17). The platform moved periodically in the anteroposterior, laterolateral, and oblique direction, with and without vision in different trials. Balance exercises were based on the Otago Exercise Program...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29627500/objective-measures-of-unobstructed-walking-and-obstacle-avoidance-in-parkinson-s-disease-subtypes
#4
Diego Orcioli-Silva, Rodrigo Vitório, Ellen Lirani-Silva, Paulo Cezar Rocha Santos, Victor Spiandor Beretta, Lilian Teresa Bucken Gobbi
BACKGROUND: Objective measures of gait in Parkinson's disease (PD) patients according to motor subtypes are not yet fully understood. Although recent advances have been made for unobstructed walking, further work is required on locomotor tasks challenging postural stability, such as obstacle avoidance. RESEARCH QUESTION: This study aimed to investigate the influence of PD motor subtypes on objective measures of locomotion during unobstructed walking and obstacle avoidance...
March 30, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29621157/motor-subtypes-of-parkinson-s-disease-can-be-identified-by-frequency-component-of-postural-stability
#5
Saba Rezvanian, Thurmon Lockhart, Christopher Frames, Rahul Soangra, Abraham Lieberman
Parkinson's disease (PD) can be divided into two subtypes based on clinical features-namely tremor dominant (TD) and postural instability and gait difficulty (PIGD). This categorization is important at the early stage of PD, since identifying the subtypes can help to predict the clinical progression of the disease. Accordingly, correctly diagnosing subtypes is critical in initiating appropriate early interventions and tracking the progression of the disease. However, as the disease progresses, it becomes increasingly difficult to further distinguish those attributes that are relevant to the subtypes...
April 5, 2018: Sensors
https://www.readbyqxmd.com/read/29614464/identifying-balance-impairments-in-people-with-parkinson-s-disease-using-video-and-wearable-sensors
#6
Emma Stack, Veena Agarwal, Rachel King, Malcolm Burnett, Fatemeh Tahavori, Balazs Janko, William Harwin, Ann Ashburn, Dorit Kunkel
BACKGROUND: Falls and near falls are common among people with Parkinson's (PwP). To date, most wearable sensor research focussed on fall detection, few studies explored if wearable sensors can detect instability. RESEARCH QUESTION: Can instability (caution or near-falls) be detected using wearable sensors in comparison to video analysis? METHODS: Twenty-four people (aged 60-86) with and without Parkinson's were recruited from community groups...
March 28, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29573980/systemic-effects-of-deep-brain-stimulation-on-synergic-control-in-parkinson-s-disease
#7
Ali Falaki, Hang Jin Jo, Mechelle M Lewis, Barbara O'Connell, Sol De Jesus, James McInerney, Xuemei Huang, Mark L Latash
OBJECTIVE: We explored effects of deep brain stimulation (DBS) in patients with Parkinson's disease (PD) on the synergic control of fingers in a multi-finger force production task and of muscles in a task involving vertical posture. METHODS: The finger task involved the four fingers of a hand producing accurate total force followed by a targeted quick force pulse. The postural task involved releasing a load from extended arms. The analysis of synergies was performed within the framework of the uncontrolled manifold hypothesis...
March 9, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29554851/the-impact-of-dual-tasking-on-postural-stability-in-people-with-parkinson-s-disease-with-and-without-freezing-of-gait
#8
Esther M J Bekkers, Kim Dockx, Surendar Devan, Sam Van Rossom, Sabine M P Verschueren, Bastiaan R Bloem, Alice Nieuwboer
BACKGROUND: Postural instability and freezing of gait (FOG) are major problems in patients with Parkinson's disease (PD), and both contribute to falls. However, the interrelationship between these 2 deficits is still unclear. OBJECTIVE: This study investigated whether dual-tasking influenced postural control differently in freezers (FOG+) and nonfreezers (FOG-). METHODS: Thirty-three patients with PD (19 FOG+, 14 FOG-, well-matched) and 28 healthy controls underwent 4 postural control tasks, consisting of standing on either stable or unstable surfaces with eyes open or closed...
February 2018: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/29545771/postural-stabilization-strategies-to-motor-contagion-induced-by-action-observation-are-impaired-in-parkinson-s-disease
#9
Elisa Pelosin, Ambra Bisio, Thierry Pozzo, Giovanna Lagravinese, Oscar Crisafulli, Roberta Marchese, Giovanni Abbruzzese, Laura Avanzino
Postural reactions can be influenced by concomitant tasks or different contexts and are modulated by a higher order motor control. Recent studies investigated postural changes determined by motor contagion induced by action observation (chameleon effect) showing that observing a model in postural disequilibrium induces an increase in healthy subjects' body sway. Parkinson's disease (PD) is associated with postural instability and impairments in cognitively controlled balance tasks. However, no studies investigated if viewing postural imbalance might influence postural stability in PD and if patients are able to inhibit a visual postural perturbation...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29520471/first-trial-protective-step-performance-before-and-after-short-term-perturbation-practice-in-people-with-parkinson-s-disease
#10
J S Barajas, D S Peterson
BACKGROUND: Protective steps are critical for fall prevention and are altered in people with Parkinson's disease (PD). Previous work suggests that perturbation training, in which patients are exposed to repeated slips, may improve protective postural responses. However, these studies typically take the average performance of several postural responses before and after training. To reduce falls in the community, training must improve protective stepping after the first perturbation exposure...
May 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29463454/diagnostic-potential-of-dentatorubrothalamic-tract-analysis-in-progressive-supranuclear-palsy
#11
Morinobu Seki, Klaus Seppi, Christoph Mueller, Thomas Potrusil, Georg Goebel, Eva Reiter, Michael Nocker, Ruth Steiger, Matthias Wildauer, Elke R Gizewski, Gregor K Wenning, Werner Poewe, Christoph Scherfler
BACKGROUND: The differentiation of progressive supranuclear palsy-parkinsonism (PSP-P) from Parkinson's disease (PD) remains a major clinical challenge. OBJECTIVES: To evaluate the diagnostic potential of observer-independent assessments of microstructural integrity within infratentorial brain regions to differentiate PSP-Richardson's syndrome (PSP-RS), PSP-P and PD. METHODS: 3T MRI parameters of mean diffusivity, fractional anisotropy, grey and white matter volumes from patients with PSP-RS (n = 12), PSP-P (n = 12) and mean disease duration of 2...
April 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29434569/cranio-caudal-kinematic-turn-signature-assessed-with-inertial-systems-as-a-marker-of-mobility-deficits-in-parkinson-s-disease
#12
Karina Lebel, Christian Duval, Hung Phuc Nguyen, Réjean Plamondon, Patrick Boissy
Background: Turning is a challenging mobility task requiring proper planning, coordination, and postural stability to be executed efficiently. Turn deficits can impair mobility and lead to falls in patients with neurodegenerative disease, such as Parkinson's disease (PD). It was previously shown that the cranio-caudal sequence involved during a turn (i.e., motion is initiated by the head, followed by the trunk) exhibits a signature that can be captured using an inertial system and analyzed through the Kinematics Theory...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29390029/the-effects-of-anxiety-and-external-attentional-focus-on-postural-control-in-patients-with-parkinson-s-disease
#13
Seyede Zohreh Jazaeri, Akram Azad, Hajar Mehdizadeh, Seyed Amirhassan Habibi, Mahbubeh Mandehgary Najafabadi, Zakieh Sadat Saberi, Hawre Rahimzadegan, Saeed Moradi, Saeed Behzadipour, Mohamad Parnianpour, Ghorban Taghizadeh, Kinda Khalaf
BACKGROUND: Although anxiety is a common non-motor outcome of Parkinson's disease (PD) affecting 40% of patients, little attention has been paid so far to its effects on balance impairment and postural control. Improvement of postural control through focusing on the environment (i.e. external focus) has been reported, but the role of anxiety, as a confounding variable, remains unclear. OBJECTIVES: This study aimed to investigate the influence of anxiety and attentional focus instruction on the standing postural control of PD patients...
2018: PloS One
https://www.readbyqxmd.com/read/29310015/balance-and-fear-of-falling-in-subjects-with-parkinson-s-disease-is-improved-after-exercises-with-motor-complexity
#14
Carla Silva-Batista, Daniel M Corcos, Hélcio Kanegusuku, Maria Elisa Pimentel Piemonte, Lilian Teresa Bucken Gobbi, Andrea C de Lima-Pardini, Marco Túlio de Mello, Claudia L M Forjaz, Carlos Ugrinowitsch
Resistance training with instability (RTI) uses exercises with high motor complexity that impose high postural control and cognitive demands that may be important for improving postural instability and fear of falling in subjects with Parkinson's disease (PD). Here, we hypothesized that: 1) RTI will be more effective than resistance training (RT) in improving balance (Balance Evaluation Systems Test [BESTest] and overall stability index [Biodex Balance System® ]) and fear of falling (Falls Efficacy Scale-International [FES-I] score) of subjects with Parkinson's disease (PD); and 2) changes in BESTest and FES-I after RTI will be associated with changes in cognitive function (Montreal Cognitive Assessment [MoCA] score - previously published) induced by RTI...
March 2018: Gait & Posture
https://www.readbyqxmd.com/read/29163185/orthostatic-intolerance-in-older-persons-etiology-and-countermeasures
#15
REVIEW
Nandu Goswami, Andrew P Blaber, Helmut Hinghofer-Szalkay, Jean-Pierre Montani
Orthostatic challenge produced by upright posture may lead to syncope if the cardiovascular system is unable to maintain adequate brain perfusion. This review outlines orthostatic intolerance related to the aging process, long-term bedrest confinement, drugs, and disease. Aging-associated illness or injury due to falls often leads to hospitalization. Older patients spend up to 83% of hospital admission lying in bed and thus the consequences of bedrest confinement such as physiological deconditioning, functional decline, and orthostatic intolerance represent a central challenge in the care of the vulnerable older population...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29153480/spatial-orientation-and-postural-control-in-patients-with-parkinson-s-disease
#16
E Pawlitzki, C Schlenstedt, N Schmidt, I Rotkirch, F Gövert, G Hartwigsen, K Witt
Postural instability is one of the most disabling and risky symptoms of advanced Parkinson's disease (PD). The purpose of this study was to investigate whether and how this is mediated by a centrally impaired spatial orientation. Therefore, we performed a spatial orientation study in 21 PD patients (mean age 68years, SD 8.5 years, 9 women) in a medically on condition and 21 healthy controls (mean age 68.9years, SD 5.5years, 14 women). We compared their spatial responses to the horizontal axis (Sakashita's visual target cancellation task), the vertical axis (bucket-test), the sagittal axis (tilt table test) and postural stability using the Fullerton Advanced Balance Scale (FAB)...
February 2018: Gait & Posture
https://www.readbyqxmd.com/read/29060542/posturography-stability-score-generation-for-stroke-patient-using-kinect-fuzzy-based-approach
#17
Oishee Mazumder, Kingshuk Chakravarty, Debatri Chatterjee, Aniruddha Sinha, Abhijit Das
Aim of this paper is to formulate a posturography stability score for stroke patients using fuzzy logic. Postural instability is one of the prominent symptoms of stroke, dementia, parkinsons disease, myopathy, etc. and is the major precursor of fall. Conventional scoring techniques used to assess postural stability require manual intervention and are dependent on live interaction with physiotherapist. We propose a novel scoring technique to calculate static stability of a person using posturography features acquired by Kinect sensor, which do not require any manual intervention or expert guidance, is cost effective and hence are ideal for tele rehabilitation purpose...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29053448/the-effects-of-coding-schemes-on-vibrotactile-biofeedback-for-dynamic-balance-training-in-parkinson-s-disease-and-healthy-elderly-individuals
#18
Beom-Chan Lee, Alberto Fung, Timothy A Thrasher
Coding scheme for earlier versions of vibrotactile biofeedback systems for balance-related applications was primarily binary in nature, either on or off at a given threshold (range of postural tilt), making it unable to convey information about error magnitude. The purpose of this paper was to explore the effects of two coding schemes (binary versus continuous) for vibrotactile biofeedback during dynamic weight-shifting exercises that are common physical therapists' recommended balance exercises used in clinical settings...
January 2018: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28946857/predicting-the-multi-domain-progression-of-parkinson-s-disease-a-bayesian-multivariate-generalized-linear-mixed-effect-model
#19
Ming Wang, Zheng Li, Eun Young Lee, Mechelle M Lewis, Lijun Zhang, Nicholas W Sterling, Daymond Wagner, Paul Eslinger, Guangwei Du, Xuemei Huang
BACKGROUND: It is challenging for current statistical models to predict clinical progression of Parkinson's disease (PD) because of the involvement of multi-domains and longitudinal data. METHODS: Past univariate longitudinal or multivariate analyses from cross-sectional trials have limited power to predict individual outcomes or a single moment. The multivariate generalized linear mixed-effect model (GLMM) under the Bayesian framework was proposed to study multi-domain longitudinal outcomes obtained at baseline, 18-, and 36-month...
September 25, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28879179/capturing-the-cranio-caudal-signature-of-a-turn-with-inertial-measurement-systems-methods-parameters-robustness-and-reliability
#20
Karina Lebel, Hung Nguyen, Christian Duval, Réjean Plamondon, Patrick Boissy
BACKGROUND: Turning is a challenging mobility task requiring coordination and postural stability. Optimal turning involves a cranio-caudal sequence (i.e., the head initiates the motion, followed by the trunk and the pelvis), which has been shown to be altered in patients with neurodegenerative diseases, such as Parkinson's disease as well as in fallers and frails. Previous studies have suggested that the cranio-caudal sequence exhibits a specific signature corresponding to the adopted turn strategy...
2017: Frontiers in Bioengineering and Biotechnology
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