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Postural stability and parkinson's disease

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
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
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...
March 8, 2018: Journal of Neurology
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...
February 7, 2018: Parkinsonism & related Disorders
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
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
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...
December 28, 2017: Gait & Posture
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
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
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
Beom-Chan Lee, Alberto Fung, Timothy A Thrasher
A coding scheme for earlier versions of vibrotactile biofeedback systems for balance-related applications was primarily binary in nature, either off or on at a given threshold (range of postural tilt), making it unable to convey information about error magnitude. The purpose of this study was to explore the effects of two coding schemes (binary vs. continuous) for vibrotactile biofeedback during dynamic weight-shifting exercises that are common physical therapists' recommended balance exercises used in clinical settings...
October 16, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
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
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
Seung-Yeon Cho, Young-Eun Lee, Kyeong-Hee Doo, Ji-Hyun Lee, Woo-Sang Jung, Sang-Kwan Moon, Jung-Mi Park, Chang-Nam Ko, Ho Kim, Hak Young Rhee, Hi-Joon Park, Seong-Uk Park
OBJECTIVE: The aim of this study was to evaluate the efficacy of acupuncture and bee venom acupuncture (BVA) for idiopathic Parkinson's disease (IPD) through a sham-controlled trial. We also investigated whether there is a sustained therapeutic effect by completing follow-up assessments after treatment completion. DESIGN: A single center, double-blind, three-armed randomized controlled trial. SETTINGS/LOCATION: This study was performed at a university hospital in Seoul, Republic of Korea...
July 28, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
Pei-Ling Wu, Megan Lee, Tzu-Ting Huang
AIM: In this paper we aimed to systematically review the literature on physical activity's effect on depressive symptoms in Parkinson disease. BACKGROUND: Depression is a common symptom of Parkinson's disease and is associated with increased disability, rapid progression of motor symptoms, mortality, and adverse effects on Quality of Life. DESIGN: A systematic review of primary research was undertaken and conducted according to the Preferred Reporting Items for Systematic Reviews...
2017: PloS One
Jacek Wilczyński, Agnieszka Pedrycz, Dariusz Mucha, Tadeusz Ambroży, Dawid Mucha
BACKGROUND: The study aims to analyze the relationship between body posture and composition, as well as postural stability in Parkinson's disease patients. MATERIAL AND METHODS: 32 people were evaluated. The study was conducted in the Laboratory of Posturology at Jan Kochanowski University in Kielce (Poland). Body posture was examined using the optoelectronic body posture Formetric Diers Method III 4D. Postural stability was evaluated using the Biodex Balance System platform...
2017: BioMed Research International
Rebecca J Reed-Jones, Douglas W Powell
The purpose of this study was to examine the effects of gaze fixation on head stabilization and gait during straight over ground walking in individuals with Parkinson's disease (PD). Eight individuals with PD (Age: 62.3±8.1 years) volunteered for the study. Full body kinematic data were collected at 120Hz using a Vicon motion capture system. Two visual conditions were used to determine the effects of gaze fixation: FREE gaze and FIXED gaze. During FIXED gaze, participants were required to fixate on a still target 13m ahead...
August 10, 2017: Neuroscience Letters
Karen Van Ooteghem, James S Frank, Fay B Horak
INTRODUCTION: Although balance training is considered the most effective treatment for balance impairments in Parkinson's disease (PD), few studies have examined if learning for balance control remains intact with PD. This study aimed to determine if learning for automatic postural responses is preserved in people with PD. METHODS: Eleven participants with moderate PD (68±6.4years; H&Y: 2-3) on their usual medication maintained balance on a platform that oscillated forward and backward with variable amplitude and constant frequency...
September 2017: Gait & Posture
N N Vakhnina, V V Zakharov
Disturbances of gait and postural stability are characteristic of the chronic progressive vascular lesion of the brain observed in moderate to severe stages of cerebrovascular disease. Disconnections between the prefrontal cortex, basal ganglia and cerebellum due to the damage of the white matter (vascular leukoencephalopathy) underlie disturbances of gait and postural stability (shorter stride length, wider gait). There are difficulties in starting with possible stoppings during the walking, waiting in front of small barriers as well as difficulties in concentration (e...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
T de Deus Fonticoba, D Santos García, M Macías Arribí
INTRODUCTION AND OBJECTIVE: In clinical practice, assessing patients with Parkinson's disease (PD) is a complex, time-consuming task. Our purpose is to provide a rigorous and objective evaluation of how motor function in PD patients is assessed by neurologists specialising in movement disorders, on the one hand, and by nurses specialising in PD management, on the other. METHODS: We conducted an observational, cross-sectional, single-centre study of 50 patients with PD (52% men; mean age: 64...
May 23, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
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