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Postural stability

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https://www.readbyqxmd.com/read/29326906/a-comparison-of-ground-reaction-force-components-according-to-the-foothold-heights-in-16-t-truck-during-downward-step
#1
Seung-Hyun Hyun, Che-Cheong Ryew
The aim of this study is to compare and analyze the components of ground reaction force (GRF) relative to the foothold heights during downward step of 16-t truck. Adult males (n= 10) jumped downward from each 1st, 2nd, 3rd foothold step and driver's seat orderly using hand rail. Sampling rate of force components of 3 axis (medial-lateral [ML] GRF, anterior-posterior [AP] GRF, peak vertical force [PVF]), variables (COPx, COPy, COP area) of center of pressure (COP), loading rate, and stability index (ML, AP, vertical, and dynamic postural stability index [DPSI]) processed from GRF system was cut off at 1,000 Hz...
December 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29324510/reliability-and-validity-of-computerized-force-platform-measures-of-balance-function-in-healthy-older-adults
#2
Cathy C Harro, Chelsea Garascia
BACKGROUND AND PURPOSE: Postural control declines with aging and is an independent risk factor for falls in older adults. Objective examination of balance function is warranted to direct fall prevention strategies. Force platform (FP) systems provide quantitative measures of postural control and analysis of different aspects of balance. The purpose of this study was to examine the reliability and validity of FP measures in healthy older adults. METHODS: This study enrolled 46 healthy elderly adults, mean age 67...
January 10, 2018: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/29310920/total-hip-arthroplasty-patients-with-fixed-spinopelvic-alignment-are-at-higher-risk-of-hip-dislocation
#3
Christina I Esposito, Kaitlin M Carroll, Peter K Sculco, Douglas E Padgett, Seth A Jerabek, David J Mayman
BACKGROUND: Sitting radiographs have been used as a pre-operative tool to plan patient-specific total hip arthroplasty (THA) component position that would improve hip stability. Previous work has demonstrated that spinal mobility may impact functional acetabular position when seated. We sought to determine whether patients who dislocate following THA have different sitting spinopelvic alignment or acetabular component orientation compared to patients who did not dislocate. METHODS: A consecutive series of 1000 patients underwent post-operative low-dose biplanar spine-to-ankle lateral radiographs in standing and sitting positions 1 year following THA...
December 13, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29310015/balance-and-fear-of-falling-in-subjects-with-parkinson-s-disease-is-improved-after-exercises-with-motor-complexity
#4
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
https://www.readbyqxmd.com/read/29309977/usefulness-and-stability-of-intraoperative-digital-subtraction-angiography-using-the-trans-radial-route-in-arteriovenous-malformation-surgery
#5
Won Ki Yoon, Hoon Kim, Young Woo Kim, Seong Rim Kim, Ik Seong Park
OBJECTIVE: Digital subtraction angiography (DSA) is the gold standard to confirm complete removal of an AVM nidus. However, the trans-femoral approach requires specialized instrumentation and is cumbersome and difficult to perform with the patient in the prone or decubitus position. The authors report the use of intraoperative DSA (iDSA) with the trans-radial approach and examine its usefulness and safety. MATERIAL AND METHODS: We retrospectively reviewed clinical features, radiologic images, surgical findings, and iDSA findings of AVM patients who underwent nidus removal surgery...
January 5, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29308950/the-effects-of-exercise-on-perception-of-verticality-in-adolescent-idiopathic-scoliosis
#6
Gozde Yagci, Yavuz Yakut, Engin Simsek
PURPOSE: Visual and proprioceptive cues are important for body orientation to maintain correct posture. This study investigated the effects of exercise training on subjective visual, postural, and haptic perception of verticality in patients with scoliosis. SUBJECTS AND METHODS: Thirty-two female adolescents with moderate idiopathic scoliosis were randomly allocated to "Core Stabilization Exercise (CSE)," "Body Awareness," or "Traditional Exercise (TE)" groups. Each group completed a 1-hour supervised program, two days per week for 10 weeks while continuing to wear spinal braces...
January 8, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29307157/the-effect-of-vestibular-rehabilitation-therapy-program-on-sensory-organization-of-deaf-children-with-bilateral-vestibular-dysfunction
#7
Amir Abbas Ebrahimi, Ali Ashraf Jamshidi, Guita Movallali, Mehdi Rahgozar, Hojjat Allah Haghgoo
The purpose of this study was to determine the effect of vestibular rehabilitation therapy program on the sensory organization of deaf children with bilateral vestibular dysfunction. This cross-sectional and analytic study was conducted on 24 students between the age of 7 and 12 years (6 girls and 18 boys) with the profound sensorineural hearing loss (PTA>90 dB). They were assessed through the balance subtest in Bruininks-Oseretsky test of motor proficiency (BOTMP). For children which the total score of the balance subtest was 3 standard deviation lower than their peers with typical development, vestibular function testing was completed pre-intervention...
November 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29305208/vestibulo-cochlear-function-in-inflammatory-neuropathies
#8
Marisa Blanquet, Jens A Petersen, Antonella Palla, Dorothe Veraguth, Konrad P Weber, Dominik Straumann, Alexander A Tarnutzer, Hans H Jung
OBJECTIVE: We aimed to quantify peripheral-vestibular deficits that may contribute to imbalanced stance/gait in patients with inflammatory neuropathies. METHODS: Twenty-one patients (58 ± 15 y [mean age ± 1SD]; chronic-inflammatory-demyelinating-polyneuropathy = 10, Guillain-Barré Syndrome = 5, Anti-MAG peripheral neuropathy = 2, multifocal-motor-neuropathy = 4) were compared with 26 healthy controls. All subjects received video-head-impulse testing (vHIT), caloric irrigation and cervical/ocular vestibular-evoked myogenic-potentials (VEMPs)...
December 20, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29299376/aerobic-anti-gravity-exercise-in-patients-with-charcot-marie-tooth-disease-types-1a-and-x-a-pilot-study
#9
Kirsten L Knak, Linda K Andersen, John Vissing
Background: Charcot-Marie-Tooth (CMT) disease is a hereditary neuropathy associated with impaired walking capacity. Some patients are too weak in the lower extremity muscles to walk at gravity with sufficient intensity or duration to gain benefit. Aim: The aim was to investigate the effect of aerobic anti-gravity exercise in weak patients with CMT 1A and X. Methods: Five adult patients performed moderate-intensity aerobic anti-gravity exercise 3/week for 10 weeks...
December 2017: Brain and Behavior
https://www.readbyqxmd.com/read/29288047/sway-regularity-and-sway-activity-in-older-adults-upright-stance-are-differentially-affected-by-dual-task
#10
Margarita Drozdova-Statkevičienė, Vida Janina Česnaitienė, Kazimieras Pukėnas, Oron Levin, Nerijus Masiulis
Age-related changes in postural control are attributed to visual, vestibular and proprioceptive dysfunctions, muscle weakness, and reduced availability of neural resources required for efficient balance control. Concurrent performance of complex cognitive tasks while standing or walking is expected to increase balance instability due to under-recruitment of brain resources and insufficient allocation of attention to the postural task. Both balance instability and attentional control of movements can, nonetheless, be determined from the center of pressure (CoP) measurements by examining the effects of dual-task on the amount of sway activity (as measured by CoP velocity - Vcop) and the statistical regularity of the CoP trajectory (the wavelet entropy of the signal - WEcop)...
December 26, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29286882/acute-effects-of-static-stretching-on-passive-stiffness-and-postural-balance-in-healthy-elderly-men
#11
Ty B Palmer, Chinonye C Agu-Udemba, Bailey M Palmer
OBJECTIVES: This study aimed to examine the acute effects of straight-leg raise (SLR) static stretching on passive stiffness and postural balance in healthy, elderly men. An additional aim of this study was to examine the relationships between stiffness and balance at baseline (prior to stretching) and the relationships between the stretch-induced changes in these variables. METHODS: Eleven elderly men (age = 69 ± 6 years; height = 177 ± 7 cm; mass = 83 ± 13 kg) underwent postural balance and passive stiffness assessments before and after: 1) a stretching treatment consisting of four, 15-s SLR static stretches performed by the primary investigator and 2) a control treatment consisting of no static stretching...
December 30, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29283019/effects-of-different-foot-progression-angles-and-platform-settings-on-postural-stability-and-fall-risk-in-healthy-and-medial-knee-osteoarthritic-adults
#12
Saad Jawaid Khan, Soobia Saad Khan, Juliana Usman, Abdul Halim Mokhtar, Noor Azuan Abu Osman
This study aims to investigate the effects of varying toe angles at different platform settings on Overall Stability Index of postural stability and fall risk using Biodex Balance System in healthy participants and medial knee osteoarthritis patients. Biodex Balance System was employed to measure postural stability and fall risk at different foot progression angles (ranging from -20° to 40°, with 10° increments) on 20 healthy (control group) and 20 knee osteoarthritis patients (osteoarthritis group) randomly (age: 59...
December 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29281712/posture-alteration-as-a-measure-to-accommodate-uneven-ground-in-able-bodied-gait
#13
Soran Aminiaghdam, Reinhard Blickhan, Roy Muller, Christian Rode
Though the effects of imposed trunk posture on human walking have been studied, less is known about such locomotion while accommodating changes in ground level. For twelve able participants, we analyzed kinematic parameters mainly at touchdown and toe-off in walking across a 10-cm visible drop in ground level (level step, pre-perturbation step, step-down, step-up) with three postures (regular erect, ~30° and ~50° of trunk flexion from the vertical). Two-way repeated measures ANOVAs revealed step-specific effects of posture on the kinematic behavior of gait mostly at toe-off of the pre-perturbation step and the step-down as well as at touchdown of the step-up...
2017: PloS One
https://www.readbyqxmd.com/read/29281193/quantitative-romberg-s-test-in-acute-carbon-monoxide-poisoning-treated-by-hyperbaric-oxygen
#14
Daniel Bidstrup, Erik Christian Jansen, Ole Hyldegaard
OBJECTIVE: The aim of this study was to evaluate whether monitoring of acute carbon monoxide-poisoned (COP) patients by means of quantitative Romberg's test (QR-test) during a hyperbaric oxygen (HBO₂) therapy regimen could be a useful supplement in the evaluation of neurological status. METHODS: We conducted a retrospective study (2000-2014) in which we evaluated data containing quantitative sway measurements of acute COP patients (n = 58) treated in an HBO₂ regimen...
November 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/29279981/fall-risk-during-opposing-stance-perturbations-among-healthy-adults-and-chronic-stroke-survivors
#15
Prakruti J Patel, Tanvi Bhatt
Studies examining recovery from SLIPS and TRIPS indicate higher incidence of falls during SLIPS than TRIPS however, differences in the recovery mechanisms during these opposing perturbations have not been examined. We therefore aimed to compare the reactive balance responses contributing to fall risk during SLIPS and TRIPS at comparable perturbation intensity among community-dwelling healthy adults and chronic stroke survivors. Younger adults (N = 11), age-matched adults (N = 11) and chronic stroke survivors (N = 12) were exposed to a single SLIP and TRIP through a motorized treadmill (16 m/s2, 0...
December 26, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29278536/ability-of-functional-performance-tests-to-identify-individuals-with-chronic-ankle-instability-a-systematic-review-with-meta-analysis
#16
Adam B Rosen, Alan R Needle, Jupil Ko
OBJECTIVE: The purpose of this systematic review with meta-analysis was to determine the effectiveness of functional performance tests (FPTs) in differentiating between individuals with chronic ankle instability (CAI) and healthy controls. DATA SOURCES: The National Library of Medicine Catalog (PubMed), the Cumulative Index for Nursing and Allied Health Literature (CINAHL), and the SPORTDiscus, from inception to June 2017 were searched. Search terms consisted of: "Functional Performance Test*" OR "Dynamic Balance Test*" OR "Postural Stability Test*" OR "Star Excursion Balance Test*" OR "Hop Test*" AND "Ankle Instability" OR "Ankle Sprain...
December 22, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29277058/the-ifst-an-instrumented-version-of-the-fukuda-stepping-test-for-balance-assessment
#17
Valeria Belluscio, Elena Bergamini, Marco Iosa, Marco Tramontano, Giovanni Morone, Giuseppe Vannozzi
The maintenance of the upright posture during dynamic balance requires the integration of sensory inputs regulated by the brain. After a neurological event, the assessment of balance control impairments is crucial for supporting health professionals in the design of personalized rehabilitation protocols. A commonly used test to assess balance ability is the Fukuda Stepping Test (FST). However, the clinical parameters traditionally considered are not fully representative of the patient's motor ability. The purpose of this study was to devise an instrumented version of the FST (iFST) that embodies inertial sensors and allows to obtain individual motor strategy information...
December 16, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29274629/trunk-sway-response-to-consecutive-slip-perturbations-between-subjects-with-and-without-recurrent-low-back-pain
#18
Paul S Sung, Pamela Danial
BACKGROUND: Trunk sway responses following perturbations are critical to develop adequate prevention strategies. It is unclear how postural responses with a handheld task can validly be transferred to treadmill-induced slip perturbations in subjects with recurrent low back pain (LBP). OBJECTIVE: To compare trunk sway angle, velocity, and reaction time following treadmill-induced perturbations while subjects with and without LBP held a tray. DESIGN: Cross-sectional study...
December 16, 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/29260355/vestibular-impairment-in-chronic-inflammatory-demyelinating-polyneuropathy
#19
Gülden Akdal, Tural Tanrıverdizade, İhsan Şengün, Fikret Bademkıran, Koray Koçoğlu, Ayşe Nur Yüceyar, Özgül Ekmekçi, Hatice Karasoy, G Michael Halmágyi
Chronic inflammatory demyelinating polyneuropathy (CIDP) is a common, treatable, autoimmune peripheral neuropathy considered to produce imbalance by weakness and proprioceptive impairment rather than vestibular impairment. We measured semicircular canal vestibular function in 21 CIDP patients (15M/6F) by the video head impulse test and postural stability with a battery comprising the modified Clinical Test of Sensory Integration and Balance, the Berg Balance Scale, the Dynamic Gait Index, the Fall Efficiency Scale, and the International Cooperative Ataxia Rating Scale...
December 19, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29259844/ankle-sprain-as-a-work-related-accident-status-of-proprioception-after-2-weeks
#20
Salvador González-Iñigo, Pedro V Munuera-Martínez, Guillermo Lafuente-Sotillos, José M Castillo-López, Javier Ramos-Ortega, Gabriel Domínguez-Maldonado
Purpose: This study aims at verifying whether proprioception is abnormal or not, two weeks after a grade 1 and 2 ankle sprain in the scope of work-related accident. Methods: A descriptive, observation and transversal study was designed to compare speed, movement and oscilation of centre of pressure in employees of companies signed up to a mutual company. Participants' healthy feet comprised the control group, and feet that had undergone an ankle sprain due to a work-related accident comprised the cases group...
2017: PeerJ
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