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gait stability

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https://www.readbyqxmd.com/read/28445875/double-incision-approach-and-early-rehabilitation-in-a-complicated-bicondylar-br-tibial-plateau-fracture-a-case-report-br-br
#1
Saverio Affatato, Maurizio Montalti, Claudio Masetti, Federico Giardina, Alessandra Sudanese
OBJECTIVE: The main goal of this case was to report the treatment of bicondylar fractures of the tibial plateau and the restoration of the metaphyseo-diaphyseal dissociation. CLINICAL PRESENTATION AND INTERVENTION: A 54-year old man who was cycling had a road accident that caused a closed fracture of the right tibial plateau and proximal fibula diagnosed by x-rays. Patient had surgical procedure and was immobilized with a long-leg splint for 4 weeks. After immobilization, aggressive rehabilitation was done...
April 26, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28437756/local-dynamic-stability-and-gait-variability-during-attentional-tasks-in-young-adults
#2
Rina Márcia Magnani, Georgia Cristina Lehnen, Fábio Barbosa Rodrigues, Gustavo Souto de Sá E Souza, Adriano de Oliveira Andrade, Marcus Fraga Vieira
Cell phone use while walking may be a cognitive distraction and reduce visual and motor attention. Thus, the aim of this study was to verify the effects of attentional dual-tasks while using a cell phone in different conditions. Stability, regularity, and linear variability of trunk kinematics, and gait spatiotemporal parameters in young adults were measured. Twenty young subjects of both genders were asked to walk on a treadmill for 4min under the following conditions: (a) looking forward at a fixed target 2...
April 18, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28433868/effects-of-attentional-focus-on-walking-stability-in-elderly
#3
Jonathan L A de Melker Worms, John F Stins, Erwin E H van Wegen, Sabine M P Verschueren, Peter J Beek, Ian D Loram
INTRODUCTION: Balance performance in the elderly is related to psychological factors such as attentional focus. We investigated the effects of internal vs. external focus of attention and fall history on walking stability in healthy older adults. METHOD: Walking stability of twenty-eight healthy older adults was assessed by applying random unilateral decelerations on a split-belt treadmill and analysing the resulting balance recovery movements. The internal focus instruction was: concentrate on the movement of your legs, whereas the external focus instruction was: concentrate on the movement of the treadmill...
April 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28431747/effects-of-vibration-training-in-reducing-risk-of-slip-related-falls-among-young-adults-with-obesity
#4
Feng Yang, Jose Munoz, Long-Zhu Han, Fei Yang
This study examined the effects of controlled whole-body vibration training on reducing risk of slip-related falls in people with obesity. Twenty-three young adults with obesity were randomly assigned into either the vibration or placebo group. The vibration and placebo groups respectively received 6-week vibration and placebo training on a side-alternating vibration platform. Before and after the training, the isometric knee extensors strength capacity was measured for the two groups. Both groups were also exposed to a standardized slip induced by a treadmill during gait prior to and following the training...
April 9, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28411443/assessment-of-stability-during-gait-in-patients-with-spinal-deformity-a-preliminary-analysis-using-the-dynamic-stability-margin
#5
Anne-Laure Simon, Vipul Lugade, Kathie Bernhardt, A Noelle Larson, Kenton Kaufman
Daily living activities are dynamic, requiring spinal motion through space. Current assessment of spinal deformities is based on static measurements from full-spine standing radiographs. Tools to assess dynamic stability during gait might be useful to enhance the standard evaluation. The aim of this study was to evaluate gait dynamic imbalance in patients with spinal deformity using the dynamic stability margin (DSM). Twelve normal subjects and 17 patients with spinal deformity were prospectively recruited...
April 5, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28411441/longitudinal-gait-and-balance-decline-in-friedreich-s-ataxia-a-pilot-study
#6
Theresa A Zesiewicz, Jeannie B Stephenson, Seok Hun Kim, Kelly L Sullivan, Israt Jahan, Yangxin Huang, Jason L Salemi, Lynn Wecker, Jessica D Shaw, Clifton L Gooch
INTRODUCTION: Friedreich's Ataxia (FA) is a devastating, progressive, neurodegenerative disease. Objective measures that detect changes in neurological function in FA patients are needed to facilitate therapeutic clinical trials. The purpose of this pilot study was to analyze longitudinal changes in gait and balance in subjects with FA using the GAITRite Walkway System(®) and Biodex Balance System™, respectively, and to test the ability of these measures to detect change over time compared to the Friedreich's Ataxia Rating Scale (FARS)...
March 30, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28410250/effects-of-antigravity-treadmill-training-on-gait-balance-and-fall-risk-in-children-with-diplegic-cerebral-palsy
#7
Shamekh Mohamed El-Shamy
OBJECTIVE: The aim of this study was to investigate the effects of antigravity treadmill training on gait, balance, and fall risk in children with diplegic cerebral palsy. DESIGN: Thirty children with diplegic cerebral palsy were selected for this randomized controlled study. They were randomly assigned to (1) an experimental group that received antigravity treadmill training (20 mins/d, 3 d/wk) together with traditional physical therapy for 3 successive mos and (2) a control group that received only traditional physical therapy program for the same period...
April 13, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28402554/does-how-the-patient-feels-matter-a-prospective-observational-study-of-the-outcome-of-acutely-ill-medical-patients-who-feel-their-condition-has-improved-on-their-first-re-assessment-after-admission-to-hospital
#8
Martin Otyek Opio, George Mutiibwa, John Kellett, Mikkel Brabrand
Background: although asking how a patient feels is the first enquiry most clinicians make the value of the answer has never been examined in acutely ill patients. Methods: prospective observational study that compared the predictive value of how well acutely ill medical patients felt after admission to a resource poor sub-Saharan hospital with their mental alertness, mobility, and vital signs. Results: : 403 patients were studied. Patients who felt better when re-assessed 18...
April 11, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28399877/overground-vs-treadmill-based-robotic-gait-training-to-improve-seated-balance-in-people-with-motor-complete-spinal-cord-injury-a-case-report
#9
Amanda E Chisholm, Raed A Alamro, Alison M M Williams, Tania Lam
BACKGROUND: Robotic overground gait training devices, such as the Ekso, require users to actively participate in triggering steps through weight-shifting movements. It remains unknown how much the trunk muscles are activated during these movements, and if it is possible to transfer training effects to seated balance control. This study was conducted to compare the activity of postural control muscles of the trunk during overground (Ekso) vs. treadmill-based (Lokomat) robotic gait training, and evaluate changes in seated balance control in people with high-thoracic motor-complete spinal cord injury (SCI)...
April 11, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28397936/swimming-with-a-cage-low-reynolds-number-locomotion-inside-a-droplet
#10
Shang Yik Reigh, Lailai Zhu, François Gallaire, Eric Lauga
Inspired by recent experiments using synthetic microswimmers to manipulate droplets, we investigate the low-Reynolds-number locomotion of a model swimmer (a spherical squirmer) encapsulated inside a droplet of a comparable size in another viscous fluid. Meditated solely by hydrodynamic interactions, the encaged swimmer is seen to be able to propel the droplet, and in some situations both remain in a stable co-swimming state. The problem is tackled using both an exact analytical theory and a numerical implementation based on a boundary element method, with a particular focus on the kinematics of the co-moving swimmer and the droplet in a concentric configuration, and we obtain excellent quantitative agreement between the two...
April 11, 2017: Soft Matter
https://www.readbyqxmd.com/read/28397001/gait-ataxia-in-humans-vestibular-and-cerebellar-control-of-dynamic-stability
#11
Roman Schniepp, Ken Möhwald, Max Wuehr
During human locomotion, vestibular feedback control is fundamental for maintaining dynamic stability and adapting the gait pattern to external circumstances. Within the supraspinal locomotor network, the cerebellum represents the key site for the integration of vestibular feedback information. The cerebellum is further important for the fine-tuning and coordination of limb movements during walking. The aim of this review article is to highlight the shared structural and functional sensorimotor principles in vestibular and cerebellar locomotion control...
April 10, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28396629/effects-of-changing-body-weight-distribution-on-mediolateral-stability-control-during-gait-initiation
#12
Teddy Caderby, Eric Yiou, Nicolas Peyrot, Xavier de Viviés, Bruno Bonazzi, Georges Dalleau
During gait initiation, anticipatory postural adjustments (APA) precede the execution of the first step. It is generally acknowledged that these APA contribute to forward progression but also serve to stabilize the whole body in the mediolateral direction during step execution. Although previous studies have shown that changes in the distribution of body weight between both legs influence motor performance during gait initiation, it is not known whether and how such changes affect a person's postural stability during this task...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28393680/wheeled-assistive-device-for-load-carriage-the-effects-on-human-gait-and-biomechanics
#13
Itay Ketko, Meir Plotnik, Ran Yanovich, Amit Gefen, Yuval Heled
Soldiers are often required to carry loads which impose biomechanical strain on the human body. This can adversely affect physical performances. Recently, wheel-based devices (WBD) were designed to reduce the load on the soldier. In the present study, a prototype of this newly developed WBD was evaluated. Thirteen volunteers performed three exercise protocols on a treadmill as follows: (1) no load; (2) carrying 40% of their bodyweight with a backpack or; (3) with the WBD. Data acquisition included: gait parameters, vertical ground reaction forces (VGRF) and contact pressure acting on the shoulder...
April 10, 2017: Ergonomics
https://www.readbyqxmd.com/read/28387693/visual-vestibular-processing-deficits-in-mild-traumatic-brain-injury
#14
W G Wright, R T Tierney, J McDevitt
BACKGROUND: The search for reliable and valid signs and symptoms of mild traumatic brain injury (mTBI), commonly synonymous with concussion, has lead to a growing body of evidence that individuals with long-lasting, unremitting impairments often experience visual and vestibular symptoms, such as dizziness, postural and gait disturbances. OBJECTIVE: Investigate the role of visual-vestibular processing deficits following concussion. METHODS: A number of clinically accepted vestibular, oculomotor, and balance assessments as well as a novel virtual reality (VR)-based balance assessment device were used to assess adults with post-acute concussion (n = 14) in comparison to a healthy age-matched cohort (n = 58)...
2017: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/28371739/immediate-effects-of-shoes-inducing-ankle-destabilization-around-henke-s-axis-during-challenging-walking-gaits-gait-kinematics-and-peroneal-muscles-activities
#15
Lilian Fautrelle, Alexandre Kubicki, Nicolas Babault, Christos Paizis
Due to its high frequency of occurrence, as well as possible residual symptoms, proper treatment of lateral ankle sprains (LAS) is important. From a physiological point of view, increasing the quantity of electromyographic (EMG) activity in the peroneal muscles will mechanically improve the functional stability of the ankle joint. The present study investigated the immediate effects of an ankle destabilization device (ADD) specifically designed to induce imbalances along the Henke's axis during 3 challenging walking tasks...
March 23, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28369965/canine-cranial-cruciate-ligament-deficient-stifle-biomechanics-associated-with-extra-articular-stabilization-predicted-using-a-computer-model
#16
Nathan P Brown, Gina E Bertocci, Denis J Marcellin-Little
OBJECTIVE: To evaluate lateral fabellotibial suture (LFTS) and TightRope CCL (TR) extra-articular stabilization biomechanics in the cranial cruciate ligament (CrCL)-deficient canine stifle joint during the stance phase of gait. STUDY DESIGN: Computer simulations. ANIMALS: Healthy 33-kg Golden Retriever. METHODS: LFTS and TR were implemented in a previously developed 3-D quasi-static rigid body CrCL-deficient canine pelvic limb computer model simulating the stance phase of gait...
April 1, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28368823/monitoring-of-gait-quality-in-patients-with-chronic-pain-of-lower-limbs
#17
Philippe Terrier, Joane Le Carre, Marie-Laure Connaissa, Bertrand Leger, Francois Luthi
Severe injuries of lower extremities often lead to chronic pain and reduced walking abilities. We postulated that measuring free-living gait can provide further information about walking ability in complement to clinical evaluations. We sought to validate a method that characterizes free gaits with a wearable sensor. Over one week, 81 healthy controls (HC) and 66 chronic lower limb pain patients (CLLPP) hospitalized for multidisciplinary rehabilitation wore a simple accelerometer (Actigraph). In the acceleration signals, steady one-minute walks detected numbered 7,835 (5,085 in CLLPP and 2,750 in HC)...
March 28, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28367687/effects-of-tai-chi-exercise-on-body-stability-among-the-elderly-during-stair-descent-under-different-levels-of-illumination
#18
Qipeng Song, Xuewen Tian, Del Wong, Cui Zhang, Wei Sun, Peng Cheng, Dewei Mao
The elderly are prone to stair descent falls under low illumination. Tai Chi, a traditional Chinese conditioning exercise, has been proved to improve body stability by altering body condition, gait, and proprioception. This study investigates whether Tai Chi exercise could improve body stability during stair descent under high and low illumination. Three groups of elderly women who practice Tai Chi, brisk walking, and no exercise were included. They descended from a simulated staircase. Tai Chi participants decreased horizontal velocity, centre of mass (COM) sway, and increased foot clearance compared with other participants, these movements could increase body stability; Compared with under high illumination, Tai Chi participants decreased horizontal velocity, loading rate, braking impulse, and increased inclination angle, COM sway, centre of pressure displacement under low illumination...
April 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28361018/spinal-alignment-evolution-with-age-a-prospective-gait-analysis-study
#19
Sébastien Pesenti, Benjamin Blondel, Emilie Peltier, Elke Viehweger, Vincent Pomero, Guillaume Authier, Stéphane Fuentes, Jean-Luc Jouve
AIM: To describe, using gait analysis, the development of spinal motion in the growing child. METHODS: Thirty-six healthy children aged from 3 to 16 years old were included in this study for a gait analysis (9 m-walk). Various kinematic parameters were recorded and analyzed such as thoracic angle (TA), lumbar angle (LA) and sagittal vertical axis (SVA). The kinetic parameters were the net reaction moments (N.m/kg) at the thoracolumbar and lumbosacral junctions. RESULTS: TA and LA curves were not statistically correlated to the age (respectively, P = 0...
March 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28351742/effects-of-treadmill-incline-and-speed-on-peroneus-longus-muscle-activity-in-persons-with-chronic-stroke-and-healthy-subjects
#20
Roghayeh Mohammadi, Chetan P Phadke
OBJECTIVE: To examine the effects of walking at different inclines and speeds on Peroneus Longus (PL) muscle activation and medial gastrocnemius (MG) coactivation with PL in healthy controls and subjects with stroke. DESIGN: Nineteen persons post-stroke (13M/6F) and fifteen healthy controls (10M/5F) walked on a treadmill at different inclines (0°, 3°, and 6°) and speeds (self-selected, self-selected+20%, self-selected+40%). The electromyographic activity of the PL and MG muscles in the stance phase of gait cycle was measured...
March 10, 2017: Gait & Posture
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