keyword
MENU ▼
Read by QxMD icon Read
search

Postural stability

keyword
https://www.readbyqxmd.com/read/27933108/postural-orientation-and-equilibrium-processes-associated-with-increased-postural-sway-in-autism-spectrum-disorder-asd
#1
Zheng Wang, Rami R Hallac, Kaitlin C Conroy, Stormi P White, Alex A Kane, Amy L Collinsworth, John A Sweeney, Matthew W Mosconi
BACKGROUND: Increased postural sway has been repeatedly documented in children with autism spectrum disorder (ASD). Characterizing the control processes underlying this deficit, including postural orientation and equilibrium, may provide key insights into neurophysiological mechanisms associated with ASD. Postural orientation refers to children's ability to actively align their trunk and head with respect to their base of support, while postural equilibrium is an active process whereby children coordinate ankle dorsi-/plantar-flexion and hip abduction/adduction movements to stabilize their upper body...
2016: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/27927789/keeping-still-doesn-t-make-sense-examining-a-role-of-movement-variability-by-stabilizing-the-arm-during-a-postural-control-task
#2
Chantelle D Murnaghan, Mark Gregory Carpenter, Romeo Chua, J Timothy Inglis
Small amplitude, higher frequency oscillations of the body or limb are typically observed when humans attempt to maintain the position of a body or limb in space. Recent investigations have suggested that these involuntary movements of the body during stance could be used as an exploratory means of acquiring sensory information. In the present study, we wanted to determine whether a similar phenomenon would be observed in an upper limb postural task that does not involve whole body postural control. Participants were placed in a supine position with the arm pointing vertically and were asked to maintain the position of the limb in space with and without visual feedback...
December 7, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27923177/the-effect-of-exergaming-on-knee-proprioception-in-older-men-a-randomized-controlled-trial
#3
Hassan Sadeghi, Mohammad Nazrul Hakim, Tengku Aizan Hamid, Saidon Bin Amri, Mohsen Razeghi, Mohammadreza Farazdaghi, Elham Shakoor
BACKGROUND: Proprioception is the ability to sense the body position, muscle sense, joint stability and posture. As balance decreases during the process of aging, knee proprioception has a critical role in body balance and daily activities. Exergaming has shown to be a potentially effective and more enjoyable form of exercise delivery. OBJECTIVE: The purpose of this study was to determine the effect of an 8-week Xbox Kinect exercise program on knee proprioception in healthy older adults...
November 23, 2016: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/27919792/the-role-of-posturography-in-assessing-the-process-of-rehabilitation-in-poststroke-patients-a-case-study
#4
Witold Rongies, Bartosz Słomka, Angelika Duczek, Włodzimierz Dolecki
Stroke is one of the most common causes of death and disability both in Poland and around the world. Each year, 250 out of 100,000 people in Europe are diagnosed with a disruption of cerebral perfusion in the form of stroke. In Poland, approximately 65,000-70,000 people are affected each year, with the incidence steadily increasing. Stroke survivors suffer from impaired cognitive and motor functions. Moreover, they exhibit severe gait pattern abnormalities, which together with balance disorders, constitute the main factors increasing the risk of falls in this patient group...
December 2, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27913929/-inpatient-multimodal-pain-therapy-additive-value-of-neuromuscular-core-stability-exercises-for-chronic-back-pain
#5
F Giesche, H Streicher, M Maiwald, P Wagner
INTRODUCTION: The medical and healthcare economic burden caused by chronic lumbar back pain (CLBP) requires the use of interdisciplinary treatment approaches. The present study aimed to evaluate whether the effectiveness of inpatient multimodal pain therapy (MPT, operations and procedures (OPS) coding 8-918.02), can be increased by implementing additional neuromuscular core stability exercises (NCSE). MATERIAL AND METHODS: As part of a prospective controlled study, subjects with CLBP (n = 48, 17 males, 58...
December 2, 2016: Der Schmerz
https://www.readbyqxmd.com/read/27911755/transformation-of-vestibular-signals-for-the-control-of-standing-in-humans
#6
Patrick A Forbes, Billy L Luu, H F Machiel Van der Loos, Elizabeth A Croft, J Timothy Inglis, Jean-Sébastien Blouin
: During standing balance, vestibular signals encode head movement and are transformed into coordinates that are relevant to maintaining upright posture of the whole body. This transformation must account for head-on-body orientation as well as the muscle actions generating the postural response. Here, we investigate whether this transformation is dependent upon a muscle's ability to stabilize the body along the direction of a vestibular disturbance. Subjects were braced on top of a robotic balance system that simulated the mechanics of standing while being exposed to an electrical vestibular stimulus that evoked a craniocentric vestibular error of head roll...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27905392/-clinical-and-stabilometric-restructuring-of-patients-stability-during-balance-therapy-from-the-first-days-of-ischemic-stroke
#7
E A Plishkina, B N Bein
AIM: To study the process of recovery of postural function during stabilometric training with biofeedback (BFB) in patients with ischemic carotid stroke. MATERIAL AND METHODS: Forty-two patients underwent 10-day stabilometric training from the onset of stroke. Clinical and stabilometric parameters were assessed at 4 points: at baseline, after 5 sessions, after 10 sessions and after 3-4 months in the early recovery stage after discharge from the hospital. RESULTS: There was no correlation between the positive regress of neurologic symptoms and trends of stabilometry indicators...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27905365/-gait-disorders-and-postural-instability-in-patients-with-an-essential-tremor
#8
S V Vasichkin, O S Levin
AIM: To study gait disorders and postural instability in patients with essential tremor (ET). MATERIAL AND METHODS: Forty patients with ET, aged from 29 to 82 years, (mean 64.2±13.0) were examined. Tandem walk, tremor, stability and stabilometry were studied. RESULTS AND CONCLUSION: A half of the patients had gait disorders and postural instability. Though these disorders were mild to moderate, they caused significant subjective discomfort and influenced quality of life...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27900198/do-rocker-sole-shoes-influence-postural-stability-in-chronic-low-back-pain-a-randomised-trial
#9
C Sian MacRae, Duncan Critchley, Matthew Morrissey, Adam Shortland, Jeremy S Lewis
BACKGROUND: People with chronic low back pain (CLBP) demonstrate greater postural instability compared with asymptomatic individuals. Rocker-sole shoes are inherently unstable and may serve as an effective balance training device. This study hypothesised that wearing rocker-sole shoes would result in long-term improvement in barefoot postural stability in people with CLBP. METHODS: 20 participants with CLBP were randomised to wear rocker-sole or flat-sole shoes for a minimum of 2 hours each day...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27896795/intersession-reliability-of-self-selected-and-narrow-stance-balance-testing-in-older-adults
#10
Bryan L Riemann, Kelsey Piersol
BACKGROUND: Despite the common practice of using force platforms to assess balance of older adults, few investigations have examined the reliability of postural screening tests in this population. AIM: We sought to determine the test-retest reliability of self-selected and narrow stance balance testing with eyes open and eyes closed in healthy older adults. METHODS: Thirty older adults (>65 years) completed 45 s trials of eyes open and eyes closed stability tests using self-selected and narrow stances on two separate days (1...
November 28, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27895569/influence-of-lumbar-muscle-fatigue-on-trunk-adaptations-during-sudden-external-perturbations
#11
Jacques Abboud, François Nougarou, Arnaud Lardon, Claude Dugas, Martin Descarreaux
Introduction: When the spine is subjected to perturbations, neuromuscular responses such as reflex muscle contractions contribute to the overall balance control and spinal stabilization mechanisms. These responses are influenced by muscle fatigue, which has been shown to trigger changes in muscle recruitment patterns. Neuromuscular adaptations, e.g., attenuation of reflex activation and/or postural oscillations following repeated unexpected external perturbations, have also been described. However, the characterization of these adaptations still remains unclear...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27883068/-cerebellar-contribution-to-visuo-attentional-alpha-rhythm-insights-from-weightlessness
#12
A M Cebolla, M Petieau, B Dan, L Balazs, J McIntyre, G Cheron
Human brain adaptation in weightlessness follows the necessity to reshape the dynamic integration of the neural information acquired in the new environment. This basic aspect was here studied by the electroencephalogram (EEG) dynamics where oscillatory modulations were measured during a visuo-attentional state preceding a visuo-motor docking task. Astronauts in microgravity conducted the experiment in free-floating aboard the International Space Station, before the space flight and afterwards. We observed stronger power decrease (~ERD: event related desynchronization) of the ~10 Hz oscillation from the occipital-parietal (alpha ERD) to the central areas (mu ERD)...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27878442/clinical-and-neurophysiological-risk-factors-for-falls-in-patients-with-bilateral-vestibulopathy
#13
Roman Schniepp, Cornelia Schlick, Fabian Schenkel, Cauchy Pradhan, Klaus Jahn, Thomas Brandt, Max Wuehr
Patients with bilateral vestibular failure (BVF) exhibit imbalance when standing and walking that is linked to a higher fall risk. The purpose of this study was to identify risk factors for falls in BVF. We therefore systematically investigated the interrelationship of clinical and demographic characteristics, gait impairments, and the fall frequency of these patients. Clinical and demographic characteristics as well as quantitative measures of gait performance on a pressure-sensitive gait carpet were collected from 55 patients with different etiologies of BVF...
November 22, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27869225/noisy-galvanic-vestibular-stimulation-induces-a-sustained-improvement-in-body-balance-in-elderly-adults
#14
Chisato Fujimoto, Yoshiharu Yamamoto, Teru Kamogashira, Makoto Kinoshita, Naoya Egami, Yukari Uemura, Fumiharu Togo, Tatsuya Yamasoba, Shinichi Iwasaki
Vestibular dysfunction causes postural instability, which is prevalent in the elderly. We previously showed that an imperceptible level of noisy galvanic vestibular stimulation (nGVS) can improve postural stability in patients with bilateral vestibulopathy during the stimulus, presumably by enhancing vestibular information processing. In this study, we investigated the after-effects of an imperceptible long-duration nGVS on body balance in elderly adults. Thirty elderly participants underwent two nGVS sessions in a randomised order...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27866798/long-distance-descending-spinal-neurons-ensure-quadrupedal-locomotor-stability
#15
Ludwig Ruder, Aya Takeoka, Silvia Arber
Locomotion is an essential animal behavior used for translocation. The spinal cord acts as key executing center, but how it coordinates many body parts located across distance remains poorly understood. Here we employed mouse genetic and viral approaches to reveal organizational principles of long-projecting spinal circuits and their role in quadrupedal locomotion. Using neurotransmitter identity, developmental origin, and projection patterns as criteria, we uncover that spinal segments controlling forelimbs and hindlimbs are bidirectionally connected by symmetrically organized direct synaptic pathways that encompass multiple genetically tractable neuronal subpopulations...
December 7, 2016: Neuron
https://www.readbyqxmd.com/read/27866261/anticipatory-postural-adjustments-and-anticipatory-synergy-adjustments-preparing-to-a-postural-perturbation-with-predictable-and-unpredictable-direction
#16
Daniele Piscitelli, Ali Falaki, Stanislaw Solnik, Mark L Latash
We explored two aspects of feed-forward postural control, anticipatory postural adjustments (APAs) and anticipatory synergy adjustments (ASAs) seen prior to self-triggered unloading with known and unknown direction of the perturbation. In particular, we tested two main hypotheses predicting contrasting changes in APAs and ASAs. The first hypothesis predicted no major changes in ASAs. The second hypothesis predicted delayed APAs with predominance of co-contraction patterns when perturbation direction was unknown...
November 19, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27865478/the-limits-of-stability-and-muscle-activity-in-middle-aged-adults-during-static-and-dynamic-stance
#17
P X Ku, N A Abu Osman, W A B Wan Abas
Balance control plays an important role in maintaining daily activity. However, studies on postural control among middle-aged adults are scarce. This study aims (i) to examine directional control (DCL) and electromyography activity (EMG) for different stability levels, and (ii) to determine left-right asymmetry for DCL and muscle activity among sedentary middle-aged adults. Twenty healthy, middle-aged adults (10 males, 10 females; age=50.0±7.5yrs; body height: 1.61±0.10m; body mass: 70.0±14.5kg) participated in the study...
November 10, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27861847/structural-and-functional-characteristics-of-the-thoracolumbar-multifidus-muscle-in-horses
#18
J A García Liñeiro, G H Graziotti, J M Rodríguez Menéndez, C M Ríos, N O Affricano, C L Victorica
The multifidus muscle fascicles of horses attach to vertebral spinous processes after crossing between one to six metameres. The fascicles within one or two metameres are difficult to distinguish in horses. A vertebral motion segment is anatomically formed by two adjacent vertebrae and the interposed soft tissue structures, and excessive mobility of a vertebral motion segment frequently causes osteoarthropathies in sport horses. The importance of the equine multifidus muscle as a vertebral motion segment stabilizer has been demonstrated; however, there is scant documentation of the structure and function of this muscle...
November 11, 2016: Journal of Anatomy
https://www.readbyqxmd.com/read/27861541/accuracy-and-reliability-of-the-kinect-version-2-for-clinical-measurement-of-motor-function
#19
Karen Otte, Bastian Kayser, Sebastian Mansow-Model, Julius Verrel, Friedemann Paul, Alexander U Brandt, Tanja Schmitz-Hübsch
BACKGROUND: The introduction of low cost optical 3D motion tracking sensors provides new options for effective quantification of motor dysfunction. OBJECTIVE: The present study aimed to evaluate the Kinect V2 sensor against a gold standard motion capture system with respect to accuracy of tracked landmark movements and accuracy and repeatability of derived clinical parameters. METHODS: Nineteen healthy subjects were concurrently recorded with a Kinect V2 sensor and an optical motion tracking system (Vicon)...
2016: PloS One
https://www.readbyqxmd.com/read/27861433/understanding-phenotypes-of-obstructive-sleep-apnea-applications-in-anesthesia-surgery-and-perioperative-medicine
#20
Yamini Subramani, Mandeep Singh, Jean Wong, Clete A Kushida, Atul Malhotra, Frances Chung
Obstructive sleep apnea (OSA) is a prevalent sleep-disordered breathing with potential long-term major neurocognitive and cardiovascular sequelae. The pathophysiology of OSA varies between individuals and is composed of different underlying mechanisms. Several components including the upper airway anatomy, effectiveness of the upper airway dilator muscles such as the genioglossus, arousal threshold of the individual, and inherent stability of the respiratory control system determine the pathogenesis of OSA...
November 17, 2016: Anesthesia and Analgesia
keyword
keyword
1805
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"