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https://www.readbyqxmd.com/read/29908434/characterizing-within-subject-variability-in-quantified-measures-of-balance-control-a-cohort-study
#1
Lise C Worthen-Chaudhari, Scott M Monfort, Courtney Bland, Xueliang Pan, Ajit M W Chaudhari
BACKGROUND: To longitudinally assess individuals using quantified measures, we must characterize within-subject variability (WSV) of the measures. RESEARCH QUESTION: What is the natural within-subject variability (WSV) that can be expected in postural control over 3+ days? METHODS: Thirteen individuals without orthopedic or neurologic impairment (mean(SD) = 55 (9) years; 76 (18) kg; 11 females/2 males) were recruited from a community workplace and consented to participate...
June 2, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29908405/objective-predictors-of-early-tolerance-to-ventral-intermediate-nucleus-of-thalamus-deep-brain-stimulation-in-essential-tremor-patients
#2
Shabbir Hussain Merchant, Sheng-Han Kuo, Yu Qiping, Linda Winfield, Guy McKhann, Sameer Sheth, Seth L Pullman, Blair Ford
OBJECTIVE: To identify pre-operative clinical and computerized spiral analysis characteristics that may help ascertain which patients with Essential Tremor (ET) will exhibit 'early tolerance' to ventral intermediate nucleus of thalamus (Vim) deep brain stimulation (DBS). METHODS: Identification of comparative characteristics of defined cases of 'early tolerance' versus patients with sustained satisfactory response treated with Vim DBS surgery for medically-refractory ET, based on retrospective chart review by a clinician blinded to the findings of computerized spiral analysis...
June 5, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29908357/coronal-trunk-imbalance-in-idiopathic-scoliosis-does-gravity-line-localisation-confirm-the-physical-findings
#3
Thibault Hernandez, Thomas Thenard, Claudio Vergari, Leopold Robichon, Wafa Skalli, Raphaël Vialle
BACKGROUND: Adolescent idiopathic scoliosis (AIS) can require surgical procedures that have major consequences. Coronal imbalance as assessed clinically using a plumb line is a key criterion for selecting patients to surgery. Nevertheless, the reference standard for assessing postural balance of the trunk is gravity line localisation within a validated frame of reference. Recent studies have established that the gravity line can be localised after body contour reconstruction from biplanar radiographs...
June 13, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29906616/anticipatory-and-compensatory-postural-adjustments-in-people-with-low-back-pain-a-systematic-review-and-meta-analysis
#4
REVIEW
Michael F Knox, Lucy S Chipchase, Siobhan M Schabrun, Rick J Romero, Paul W M Marshall
BACKGROUND CONTEXT: Despite altered anticipatory (APAs) and compensatory postural adjustments (CPAs) being hypothesized to contribute to the onset and persistence of low back pain (LBP), results from studies comparing people with and without LBP are conflicting. PURPOSE: This systematic review aimed to determine whether anticipatory (APAs) or compensatory postural adjustments (CPAs) are altered in the presence of acute and chronic low back pain (LBP). STUDY DESIGN: A systematic review of studies was carried out...
June 12, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29905767/the-multisystem-effects-of-simulated-agricultural-whole-body-vibration-on-acute-sensorimotor-physical-and-cognitive-performance
#5
Marcus Yung, Liana M Tennant, Stephan Milosavljevic, Catherine Trask
Background: Exposure to whole body vibration (WBV) is common in construction, agriculture, mining, and transportation. There is strong epidemiological evidence linking WBV with adverse health outcomes in the long-term, including low back pain. Fortunately, WBV exposure guidelines to prevent long-term musculoskeletal disorders and discomfort exist. In the shorter-term, it has been speculated that occupational levels of WBV may lead to increased risk of vehicle accidents and falls during egress; however, the acute effects of different vibration intensities remain poorly understood and it is uncertain whether established standards protect the worker from injurious short-term effects...
June 14, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29905641/surgical-treatment-of-diplopia-in-graves-orbitopathy-patients
#6
Anja Eckstein, Joachim Esser, Michael Oeverhaus, Peerooz Saeed, Hinke Marijke Jellema
PURPOSE: To review the authors' current understanding of motility dysfunction in patients with thyroid eye disease and to summarize appropriate evaluation and available management options. METHODS: Data were retrieved from a systematic search of the literature. RESULTS: Diplopia is one of the most disabling symptoms for Graves orbitopathy patients. It occurs in moderate-to-severe Graves orbitopathy stages and does not respond well to available anti-inflammatory treatment...
June 13, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29904916/postural-control-during-reaching-while-sitting-and-general-motor-behaviour-when-learning-to-walk
#7
Anke G Boxum, Sacha La Bastide-Van Gemert, Linze-Jaap Dijkstra, Anna Furda, Heleen A Reinders-Messelink, Mijna Hadders-Algra
AIM: To study changes in muscular postural strategies and general motor behaviour during the transition to independent walking. Postural control was assessed at its two functional levels: (1) direction specificity, in which dorsal muscles are primarily activated when reaching forward; and (2) fine-tuning of direction specificity. METHOD: In an explorative longitudinal study, surface electromyograms of the arm, trunk, and neck muscles of 28 typically developing infants were recorded during reaching while sitting...
June 14, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29904895/syncope-and-headache
#8
REVIEW
Ramesh K Khurana
PURPOSE OF REVIEW: We review the literature on co-occurrence of syncope and headache and share clinical experience. RECENT FINDINGS: Headache in relation to syncope has been the subject of recent interest. Orthostatic intolerance has an expanding spectrum with three well-defined entities: orthostatic hypotension (OH), neurally mediated hypotension (NMH), and postural tachycardia syndrome (PoTS). Syncope occurs in patients with OH as well as in patients with episodically occurring NMH...
June 15, 2018: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/29904205/spontaneous-resolution-of-bilateral-congenital-patellar-luxation-in-an-alpaca-cria
#9
Emily E John, Laurent Viel
An 8-day-old alpaca was presented for suspected meconium impaction and abnormal gait and posture. Physical examination revealed bilateral medial patellar luxation. In previous reports, medical treatment of patellar luxation in crias has been associated with a poor to grave prognosis; here we report a case of successful resolution.
May 2018: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/29904047/evaluation-of-independent-versus-integrated-effects-of-reciprocal-electrical-stimulation-and-botulinum-toxin-a-on-dynamic-limits-of-postural-stability-and-ankle-kinematics-in-spastic-diplegia-a-single-blinded-randomized-trial
#10
Ragab K Elnaggar, Mohammed F Elbanna
BACKGROUND: Combination of medical and physical therapy protocols are increasingly recommended for cerebral palsied children. However, the clinicians frequently choose between independent or integrated treatment delivery based on little empirical evidence. AIM: To analyze the independent versus the integrated effects of Reciprocal Electrical Stimulation (RES) and Botulinum Toxin-A (BoNT-A) in terms of dynamic limits of postural stability and ankle kinematics in spastic diplegia...
June 14, 2018: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29903594/the-patient-perspective-what-postural-orthostatic-tachycardia-syndrome-patients-want-physicians-to-know
#11
REVIEW
Lauren E Stiles, Jaclyn Cinnamon, Irina Balan
Diagnosing and treating postural orthostatic tachycardia syndrome (POTS) can be a frustrating experience for patients and physicians alike. Experienced patient leaders solicited input from the large online POTS community to identify patient suggestions and concerns, with the goal of improving the patient-physician relationship and outcomes in POTS. This review article offers practical tips to improve POTS patient care and links to credible resources for your patients. The authors emphasize the urgent need for improved physician education, a tailored treatment approach, and expanded research efforts...
June 7, 2018: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/29903584/a-detailed-clinical-study-of-pain-in-1957-participants-with-early-moderate-parkinson-s-disease
#12
Monty A Silverdale, Christopher Kobylecki, Lewis Kass-Iliyya, Pablo Martinez-Martin, Michael Lawton, Sarah Cotterill, K Ray Chaudhuri, Huw Morris, Fahd Baig, Nigel Williams, Leon Hubbard, Michele T Hu, Donald G Grosset
INTRODUCTION: The causes of pain in early/moderate Parkinson's disease (PD) are not well understood. Although peripheral factors such as rigidity, reduced joint movements and poor posture may contribute towards the development of pain, central mechanisms including altered nociceptive processing may also be involved. METHODS: We performed a large clinical study to investigate potential factors contributing towards pain in early/moderate PD. We recruited 1957 PD participants who had detailed assessments of pain, motor and non-motor symptoms...
June 6, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29903448/historic-notes-on-anatomic-physiologic-and-clinical-research-on-the-cerebellum
#13
Jan Voogd, Peter J Koehler
This chapter is concerned with ideas on the function, structure, and pathology that shaped our present knowledge of the cerebellum. One of the main themes in its early history is its localization subtentorially, leading to misattributions due to clinical observations in trauma and lesion experiments that caused collateral damage to the brainstem. Improvement of techniques led to the insight that it plays a role in movement control (Rolando) or coordination (Flourens). Purkinje initiated the histology of the cerebellar cortex in 1837...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29903437/cerebellar-motor-syndrome-from-children-to-the-elderly
#14
Mario Manto
More than a century after the description of its cardinal components, the cerebellar motor syndrome (CMS) remains a cornerstone of daily clinical ataxiology, in both children and adults. Anatomically, motor cerebellum involves lobules I-V, VI, and VIII. CMS is typically associated with errors in the metrics of voluntary movements and a lack of coordination. Symptoms and motor signs consist of speech deficits, impairments of limb movements, and abnormalities of posture/gait. Ataxic dysarthria has a typical scanning (explosive with staccato) feature, voice has a nasal character, and speech is slurred...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29903014/lrrk-2-gene-mutations-in-the-pathophysiology-of-the-roco-domain-and-therapeutic-targets-for-parkinson-s-disease-a-review
#15
REVIEW
Meng-Ling Chen, Ruey-Meei Wu
Parkinson's disease (PD) is the most common movement disorder and manifests as resting tremor, rigidity, bradykinesia, and postural instability. Pathologically, PD is characterized by selective loss of dopaminergic neurons in the substantia nigra and the formation of intracellular inclusions containing α-synuclein and ubiquitin called Lewy bodies. Consequently, a remarkable deficiency of dopamine in the striatum causes progressive disability of motor function. The etiology of PD remains uncertain. Genetic variability in leucine-rich repeat kinase 2 (LRRK2) is the most common genetic cause of sporadic and familial PD...
June 14, 2018: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29902715/anticipatory-postural-responses-prior-to-protective-steps-are-not-different-in-people-with-pd-who-do-and-do-not-freeze
#16
D S Peterson, K R Lohse, M Mancini
BACKGROUND: Protective stepping after a loss of balance is related to falls. Anticipatory postural responses (APAs) prior to protective stepping can impact step performance, may be larger in people with PD, and have been suggested to be related to freezing of gait (FOG). However, whether people with PD and FOG (PD + FOG) exhibit larger APAs than people with PD and no FOG (PD-FOG) is unknown. RESEARCH QUESTION: Determine the impact of freezing status on APAs prior to protective steps, thus providing a better understanding of the link between FOG and APAs...
June 5, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29902704/haptic-information-and-cognitive-visual-task-reduce-postural-sway-in-faller-and-non-faller-older-adults
#17
Rosangela Alice Batistela, Alison Oates, Renato Moraes
Understanding the effects of haptic input while performing a cognitive-visual task on postural control can broaden comprehension of the functional integration hypothesis in older adults with and without a history of falls. We aimed to investigate the effect of haptic input provided by light touch (LT) and the anchors while performing a cognitive-visual task in faller and non-faller older adults when standing upright. Twenty-two fallers and twenty-two non-fallers older adults participated in this study. They stood upright with feet together and performed six experimental conditions combining haptic cues (none, LT, and anchors) and the presence/absence of the cognitive-visual task (the adapted visual Stroop test)...
June 11, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29900508/the-challenges-of-cervicogenic-headache
#18
REVIEW
Andrew Blumenfeld, Sara Siavoshi
PURPOSE OF REVIEW: The purpose of this manuscript is to illuminate the diagnostic challenges in patients who present with both headache and neck pain. RECENT FINDINGS: The differential diagnosis for headache and neck pain includes many conditions. Furthermore, cervical musculoskeletal abnormalities including head forward posture and myofascial trigger points may play an overlapping role in many of these conditions. Multiple headache disorders may be present within the same patient...
June 13, 2018: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/29899724/gait-stability-has-phase-dependent-dual-task-costs-in-parkinson-s-disease
#19
Peter C Fino, Martina Mancini, Carolin Curtze, John G Nutt, Fay B Horak
Dual-task (DT) paradigms have been used in gait research to assess the automaticity of locomotion, particularly in people with Parkinson's disease (PD). In people with PD, reliance on cortical control during walking leads to greater interference between cognitive and locomotor tasks. Yet, recent studies have suggested that even healthy gait requires cognitive control, and that these cognitive contributions occur at specific phases of the gait cycle. Here, we examined whether changes in gait stability, elicited by simultaneous cognitive DTs, were specific to certain phases of the gait cycle in people with PD...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29899692/low-gain-servo-control-during-the-kohnstamm-phenomenon-reveals-dissociation-between-low-level-control-mechanisms-for-involuntary-vs-voluntary-arm-movements
#20
Jack De Havas, Sho Ito, Patrick Haggard, Hiroaki Gomi
The Kohnstamm phenomenon is a prolonged involuntary aftercontraction following a sustained voluntary isometric muscle contraction. The control principles of the Kohnstamm have been investigated using mechanical perturbations, but previous studies could not dissociate sensorimotor responses to perturbation from effects of gravity. We induced a horizontal, gravity-independent Kohnstamm movement around the shoulder joint, and applied resistive or assistive torques of 0.5 Nm after 20° angular displacement. A No perturbation control condition was included...
2018: Frontiers in Behavioral Neuroscience
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