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https://www.readbyqxmd.com/read/28640006/poor-gait-performance-is-influenced-with-decreased-vestibulo-ocular-reflex-in-poststroke-patients
#1
Tsubasa Mitsutake, Maiko Sakamoto, Kozo Ueta, Shinichiro Oka, Etsuo Horikawa
The vestibulo-ocular reflex (VOR) exerts a significant influence on gait performance. Therefore, a decrease in VOR function could worsen gait impairments in patients with poststroke hemiparesis. The effects of decreased VOR function on gait performance could be further exacerbated by aging-related physical weakness and impaired motor function of the hemiparetic lower limb. The aim of our study was to evaluate the possible synergistic effect of aging and impairment in lower extremity function and the VOR on walking ability of poststroke hemiplegic patients...
June 21, 2017: Neuroreport
https://www.readbyqxmd.com/read/28637821/endovascular-management-of-aneurysms-associated-with-spinal-arteriovenous-malformations
#2
Sung Chul Jung, Yunsun Song, Su Hee Cho, Joonggoo Kim, Seung Yeon Noh, Sang Hun Lee, Jae Jon Sheen, Seung Chul Rhim, Sang Ryong Jeon, Dae Chul Suh
BACKGROUND: Spinal aneurysms are rare among spinal arteriovenous malformations (SAVMs). There are few reports of endovascular management of spinal aneurysms associated with SAVM. OBJECTIVE: To present endovascular management of aneurysms associated with SAVM. METHODS: Of 91 patients with SAVMs,eight (9%) presented with aneurysms. Of these, three were male and five were female with a median age of 18 years (range 11-38). We evaluated the presenting pattern, lesion level, type of the target aneurysm related to the presenting pattern and AVM nidus, and the result obtained after embolization or open surgery...
June 21, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28635875/-disturbances-of-gait-and-postural-stability-in-chronic-cerebral-ischemia
#3
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
https://www.readbyqxmd.com/read/28631623/morphological-self-stabilization-of-locomotion-gaits-illustration-on-a-few-examples-from-bio-inspired-locomotion
#4
Christine Chevallereau, Frédéric Boyer, Mathieu Porez, Johan Mauny, Yannick Aoustin
To a large extent, robotics locomotion can be viewed as cyclic motions, named gaits. Due to the high complexity of the locomotion dynamics, to find the control laws that ensure an expected gait and its stability with respect to external perturbations, is a challenging issue for feedback control. To address this issue, a promising way is to take inspiration from animals that intensively exploit the interactions of the passive degrees of freedom of their body with their physical surroundings, to outsource the high-level exteroceptive feedback control to low-level proprioceptive ones...
June 20, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28627859/use-of-dynamic-movement-orthoses-to-improve-gait-stability-and-trunk-control-in-ataxic-patients
#5
Mariano Serrao, Carlo Casali, Alberto Ranavolo, Silvia Mari, Carmela Conte, Giorgia Chini, Luca Leonardi, Gianluca Coppola, Cherubino DI Lorenzo, Mahmoud Harfoush, Luca Padua, Francesco Pierelli
BACKGROUND: Patients with cerebellar ataxia show increased upper body movements, which have an impact on balance and walking. AIM: In this study, we investigated the effect of using dynamic movement orthoses (DMO), designed as elastic suits, on trunk motion and gait parameters. DESIGN: A longitudinal uncontrolled study. SETTING: Rehabilitative outpatient unit. POPULATION: Eleven patients (seven men, four women; mean age of 49...
June 19, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28601293/from-dizziness-to-severe-ataxia-and-dysarthria-new-cases-of-anti-ca-arhgap26-autoantibody-associated-cerebellar-ataxia-suggest-a-broad-clinical-spectrum
#6
Ulrike Wallwitz, Sebastian Brock, Antje Schunck, Brigitte Wildemann, Sven Jarius, Frank Hoffmann
In 2010, a novel anti-neuronal autoantibody, termed anti-Ca, was described in a patient with subacute cerebellar ataxia, and Rho GTPase-activating protein 26 (ARHGAP26) was identified as the target antigen. Recently, three additional cases of anti-Ca-positive cerebellar ataxia have been published. In addition to ataxia, cognitive decline and depression have been observed in some patients. Here, we report two new cases of anti-Ca-associated autoimmune cerebellar ataxia. Patient 1 presented with dizziness and acute yet mild limb and gait ataxia...
August 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28589051/review-and-long-term-outcomes-of-cruciate-ligament-reconstruction-versus-conservative-treatment-in-siblings-with-congenital-anterior-cruciate-ligament-aplasia
#7
Diego Davanzo, Paolo Fornaciari, Geoffroy Barbier, Mauro Maniglio, Daniel Petek
There is no consensus on the best treatment for anterior cruciate ligament hypoplasia or aplasia. To our knowledge, no comparative study between operative and conservative treatment of this condition has ever been performed. Conservative treatment is a viable alternative to surgery for ACL aplasia. Two siblings were examined at our outpatient clinic. The male patient underwent bilateral ACL reconstruction, while his sister was treated conservatively. Our results show a worse long-term outcome for the operative patient...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28575030/method-to-assess-the-temporal-persistence-of-potential-biometric-features-application-to-oculomotor-gait-face-and-brain-structure-databases
#8
Lee Friedman, Mark S Nixon, Oleg V Komogortsev
We introduce the intraclass correlation coefficient (ICC) to the biometric community as an index of the temporal persistence, or stability, of a single biometric feature. It requires, as input, a feature on an interval or ratio scale, and which is reasonably normally distributed, and it can only be calculated if each subject is tested on 2 or more occasions. For a biometric system, with multiple features available for selection, the ICC can be used to measure the relative stability of each feature. We show, for 14 distinct data sets (1 synthetic, 8 eye-movement-related, 2 gait-related, and 2 face-recognition-related, and one brain-structure-related), that selecting the most stable features, based on the ICC, resulted in the best biometric performance generally...
2017: PloS One
https://www.readbyqxmd.com/read/28574938/chronic-anterior-pelvic-instability-diagnosis-and-management
#9
Michael D Stover, Adam I Edelstein, Joel M Matta
Chronic anterior pelvic ring instability can cause pain and disability. Pain typically is localized to the suprapubic area or inner thigh; often is associated with lower back or buttock pain; and may be exacerbated by activity, direct impact, or pelvic ring compression. Known etiologies of chronic anterior pelvic ring instability include pregnancy, parturition, trauma, insufficiency fractures, athletics, prior surgery, and osteitis pubis. Diagnosis often is delayed. Physical examination may reveal an antalgic or waddling gait, tenderness over the pubic bones or symphysis pubis, and pain with provocative maneuvers...
June 1, 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28572784/inertial-sensors-to-assess-gait-quality-in-patients-with-neurological-disorders-a-systematic-review-of-technical-and-analytical-challenges
#10
REVIEW
Aliénor Vienne, Rémi P Barrois, Stéphane Buffat, Damien Ricard, Pierre-Paul Vidal
Gait disorders are major causes of falls in patients with neurological diseases. Understanding these disorders allows prevention and better insights into underlying diseases. InertiaLocoGraphy (ILG) -the quantification of gait by using inertial measurement units (IMUs) -shows great potential to address this public health challenge, but protocols vary widely and normative values of gait parameters are still unavailable. This systematic review critically compares ILG protocols, questions features extracted from inertial signals and proposes a semeiological analysis of clinimetric characteristics for use in neurological clinical routine...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28567339/hallux-rigidus-how-do-i-approach-it
#11
REVIEW
Aaron Lam, Jimmy J Chan, Michele F Surace, Ettore Vulcano
Hallux rigidus is a degenerative disease of the first metatarsalphalangeal (MTP) joint and affects 2.5% of people over age 50. Dorsal osteophytes and narrowed joint space leads to debilitating pain and limited range of motion. Altered gait mechanics often ensued as 119% of the body force transmit through the 1(st) MTP joint during gait cycle. Precise etiology remains under debate with trauma being often cited in the literature. Hallux valgus interphalangeus, female gender, inflammatory and metabolic conditions have all been identified as associative factors...
May 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28560009/analysis-of-different-bicruciate-retaining-tibial-prosthesis-design-using-a-three-dimension-finite-element-model
#12
Peiheng He, Xing Li, Shuai Huang, Minghao Liu, Weizhi Chen, Dongliang Xu
The recent interest in bicruciate-retaining prostheses has aimed to address the need for an implant that can mimic a natural knee. Arguments have always existed about survivorship, including loosening and subsidence, as well as tibial preparation in bicruciate-retaining tibial prostheses. The aim of this study was to investigate the biomechanics of a new modular design and other bicruciate-retaining designs using a three-dimensional finite element model under different load conditions to discover which prosthesis was more suitable...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28558835/a-muscle-driven-approach-to-restore-stepping-with-an-exoskeleton-for-individuals-with-paraplegia
#13
Sarah R Chang, Mark J Nandor, Lu Li, Rudi Kobetic, Kevin M Foglyano, John R Schnellenberger, Musa L Audu, Gilles Pinault, Roger D Quinn, Ronald J Triolo
BACKGROUND: Functional neuromuscular stimulation, lower limb orthosis, powered lower limb exoskeleton, and hybrid neuroprosthesis (HNP) technologies can restore stepping in individuals with paraplegia due to spinal cord injury (SCI). However, a self-contained muscle-driven controllable exoskeleton approach based on an implanted neural stimulator to restore walking has not been previously demonstrated, which could potentially result in system use outside the laboratory and viable for long term use or clinical testing...
May 30, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28552496/effects-of-novel-guidance-tubing-gait-on-emg-neuromuscular-imbalance-and-joint-angular-kinematics-during-locomotion-in-hemiparetic-stroke-patients
#14
Jeong J Lee, Joshua Sung H You
OBJECTIVE: To compare the immediate effects of conventional treadmill gait (CTG) and guidance tubing gait (GTG) on electromyographic (EMG) neuromuscular imbalance and knee joint kinematics in hemiparetic gait. DESIGN: Case control study. SETTING: University medical center. PARTICIPANTS: Eighteen patients with hemiparetic stroke (18 experimental, mean (SD) age 39.2 (16.8) years) and 15 healthy controls, mean age 26.3 (2...
May 25, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28551469/peak-medial-but-not-lateral-hamstring-activity-is-significantly-lower-during-stance-phase-of-running-an-emg-investigation-using-a-reduced-gravity-treadmill
#15
Clint Hansen, Einar Einarson, Athol Thomson, Rodney Whiteley
The hamstrings are seen to work during late swing phase (presumably to decelerate the extending shank) then during stance phase (presumably stabilizing the knee and contributing to horizontal force production during propulsion) of running. A better understanding of this hamstring activation during running may contribute to injury prevention and performance enhancement (targeting the specific role via specific contraction mode). Twenty active adult males underwent surface EMG recordings of their medial and lateral hamstrings while running on a reduced gravity treadmill...
May 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28549752/inter-rater-variability-in-motor-function-assessment-in-parkinson-s-disease-between-experts-in-movement-disorders-and-nurses-specialising-in-pd-management
#16
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
https://www.readbyqxmd.com/read/28544951/clinical-balance-scales-indicate-worse-postural-control-in-people-with-parkinson-s-disease-who-exhibit-freezing-of-gait-compared-to-those-who-do-not-a-meta-analysis
#17
REVIEW
Esther M J Bekkers, Bauke W Dijkstra, Kim Dockx, Elke Heremans, Sabine M P Verschueren, Alice Nieuwboer
Postural instability and freezing of gait (FOG) are key features of Parkinson's disease (PD) that are closely related to falls. Uncovering the postural control differences between individuals with and without FOG contributes to our understanding of the relationship between these phenomena. The objective of this meta-analysis was to investigate whether postural control deficits, as detected by clinical balance scales, were more apparent in FOG+ compared to FOG-. Furthermore, we aimed to identify whether different scales were equally sensitive to detect postural control deficits and whether medication affected postural control differentially in each subgroup...
July 2017: Gait & Posture
https://www.readbyqxmd.com/read/28542281/gait-asymmetry-ankle-spasticity-and-depression-as-independent-predictors-of-falls-in-ambulatory-stroke-patients
#18
Ta-Sen Wei, Peng-Ta Liu, Liang-Wey Chang, Sen-Yung Liu
BACKGROUND: Falls are the leading cause of injury in stroke patients. However, the cause of a fall is complicated, and several types of risk factors are involved. Therefore, a comprehensive model to predict falls with high sensitivity and specificity is needed. METHODS: This study was a prospective study of 112 inpatients in a rehabilitation ward with follow-up interviews in patients' homes. Evaluations were performed 1 month after stroke and included the following factors: (1) status of cognition, depression, fear of fall and limb spasticity; (2) functional assessments [walking velocity and the Functional Independence Measure (FIM)]; and (3) objective, computerized gait and balance analyses...
2017: PloS One
https://www.readbyqxmd.com/read/28542112/effects-of-vestibular-rehabilitation-on-gait-performance-in-poststroke-patients-a-pilot-randomized-controlled-trial
#19
Tsubasa Mitsutake, Maiko Sakamoto, Kozo Ueta, Shinichiro Oka, Etsuo Horikawa
The effects of vestibular rehabilitation on poststroke patients are unknown. This study aimed to investigate whether or not vestibular rehabilitation would improve both the vestibulo-ocular reflex and gait performance of patients with poststroke hemiparesis. Twenty-eight patients with stroke were assigned randomly to either an experimental group (N=14) or a control group (N=14). The experimental group performed the conventional physical therapy for 40 min and vestibular rehabilitation for 20 min, as a 60 min session, during the first 3 weeks and then completed only the conventional intervention for 60 min for the following 3 weeks...
May 24, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28535762/gait-initiation-and-termination-strategies-in-patients-with-prader-willi-syndrome
#20
Veronica Cimolin, Nicola Cau, Manuela Galli, Cristina Santovito, Graziano Grugni, Paolo Capodaglio
BACKGROUND: Gait Initiation (GI) is a functional task representing one of the first voluntary destabilizing behaviours observed in the development of a locomotor pattern as the whole body centre of mass transitions from a large to a small base of support. Conversely, Gait Termination (GT) consists in the transition from walking to standing which, in everyday life, is a very common movement. Compared to normal walking, it requires higher control of postural stability. For a safe GT, the forward movement of the body has to be slowed down to achieve a stable upright position...
May 23, 2017: Journal of Neuroengineering and Rehabilitation
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