keyword
MENU ▼
Read by QxMD icon Read
search

posterior center of pressure

keyword
https://www.readbyqxmd.com/read/28107239/management-of-pharyngeal-fistulas-after-anterior-cervical-spine-surgery-a-treatment-algorithm-for-severe-complications
#1
Christian Simon, Carl H Fürstenberg, Markus Eichler, Stefan Rohde, Cem Bulut, Bernd Wiedenhöfer
STUDY DESIGN: This study is a retrospective database query to identify all anterior spinal approaches. OBJECTIVES: The objectives were to assess all patients with pharyngocutaneous fistulas (PCFs) after anterior cervical spine surgery. SUMMARY OF BACKGROUND DATA: Patients with the diagnosis of PCFs were treated at the University of Heidelberg Spine Medical Center, Spinal Cord Injury Unit and Department of Otolaryngology (Germany), between 2005 and 2011...
February 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28093258/stooping-crouching-and-standing-characterizing-balance-control-strategies-across-postures
#2
Tyler B Weaver, Michal N Glinka, Andrew C Laing
BACKGROUND: While stooping and crouching postures are critical for many activities of daily living, little is known about the balance control mechanisms employed during these postures. Accordingly, the purpose of this study was to characterize the mechanisms driving net center of pressure (COPNet) movement across three postures (standing, stooping, and crouching) and to investigate if control in each posture was influenced by time. METHODS: Ten young adults performed the three postures for 60s each...
January 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28050918/unstable-footwear-affects-magnitude-and-structure-of-variability-in-postural-control
#3
Michael Buchecker, Stefan Wegenkittl, Thomas Stöggl, Erich Müller
This study evaluated the amount, and particularly the structure of variability in postural control accompanying an unstable shoe (US) application. Medio-lateral and anterior-posterior center of pressure (COP) signals, plus electromyographic (EMG) profiles of the tibialis anterior and gastrocnemius medialis were recorded in 29 asymptomatic men while wearing both US and flat shoes (FS). Statistical analysis included common measures of dispersion, as well as sample entropy (SEn) and largest Lyapunov exponent (LyE) estimates...
January 4, 2017: Motor Control
https://www.readbyqxmd.com/read/28032141/vestibular-control-of-standing-balance-is-enhanced-with-increased-cognitive-load
#4
Michael A McGeehan, Marjorie H Woollacott, Brian H Dalton
When cognitive load is elevated during a motor task, cortical inhibition and reaction time are increased; yet, standing balance control is often unchanged. This disconnect is likely explained by compensatory mechanisms within the balance system such as increased sensitivity of the vestibulomotor pathway. This study aimed to determine the effects of increased cognitive load on the vestibular control of standing balance. Participants stood blindfolded on a force plate with their head facing left and arms relaxed at their sides for two trials while exposed to continuous electrical vestibular stimulation (EVS)...
December 28, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28032037/surgical-apgar-score-predicts-early-complication-in-transfemoral-amputees-retrospective-study-of-170-major-amputations
#5
Christian Wied, Nicolai B Foss, Morten T Kristensen, Gitte Holm, Thomas Kallemose, Anders Troelsen
AIM: To assess whether the surgical apgar score (SAS) is a prognostic tool capable of identifying patients at risk of major complications following lower extremity amputations surgery. METHODS: This was a single-center, retrospective observational cohort study conducted between January 2013 and April 2015. All patients who had either a primary transtibial amputation (TTA) or transfemoral amputation (TFA) conducted at our institution during the study period were assessed for inclusion...
December 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28031752/postural-preparation-to-stepping-coupled-center-of-pressure-shifts-in-the-anterior-posterior-and-medio-lateral-directions
#6
Clint Hansen, Jacques LaRue, Manh-Cuong Do, Mark L Latash
We explored changes in the postural preparation to stepping introduced by modifications of the initial coordinates of the center of pressure (COP). We hypothesized that the postural adjustments in the anterior-posterior direction would persist across all initial COP manipulations while the adjustments in the medio-lateral direction would be highly sensitive to the initial COP coordinate. Healthy subjects stood on a force plate, shifted the body weight to one of the initial conditions that spanned the range of COP coordinates in both directions, and initiated a single step or started to walk...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28026984/examining-changes-to-center-of-pressure-during-the-first-trials-of-wii-gameplay
#7
Rebecca Reed-Jones, Laura Carvalho, Chelsey Sanderson, William Montelpare, Nicholas Murray, Douglas Powell
OBJECTIVE: Use of the Nintendo Wii™ as a balance assessment and rehabilitation tool continues to grow. One advantage of the Wii is that games can serve as a virtual reality training tool; however, a disadvantage of the Wii is the human-machine interface and the learning effect over multiple trials. The purpose of this study was to assess changes in postural control during Wii gameplay over a series of trials in novice players. MATERIALS AND METHODS: Thirty-one university athletes (aged 18-25 years) completed four trials of the Nintendo Wii Fit™ soccer heading (SH) balance game...
December 27, 2016: Games for Health
https://www.readbyqxmd.com/read/28004203/aging-effect-on-muscle-synergies-in-stepping-forth-during-a-forward-perturbation
#8
Yun Wang, Kazuhiko Watanabe, Tadayoshi Asaka
PURPOSE: We explored changes in muscle interactions during healthy aging as a window into neural control strategies of postural preparation to action/perturbation. In particular, we quantified the strength of multi-muscle synergies stabilizing the center of pressure (COP) displacement during the preparation for making a step associated with support surface translations. METHODS: Young and elderly subjects were required to make a step in response to support surface perturbations...
December 21, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27991482/the-effects-of-unstable-surface-balance-training-on-postural-sway-stability-functional-ability-and-flexibility-in-women
#9
Svetlana Nepocatych, Caroline J Ketcham, Srikant Vallabhajosula, Gytis Balilionis
BACKGROUND: This study examined the effects of balance training routine, using both sides utilized balance trainer (BOSU) and aerobic step (STEP) on postural sway and functional ability in middle-aged women. METHODS: Twenty-seven females participated in the study, age 40.6 ± 12.0 years, body mass 72.0 ± 14.0 kg, height 164.0 ± 7.7 cm, BMI 26.5 ± 4.5 kg/m2, and relative body fat 33.1 ± 7.4%. Participants were divided into two groups and performed progressive exercise routine on either STEP or BOSU for three weeks...
December 16, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27968868/timing-and-approaches-in-congenital-cataract-surgery-a-randomised-controlled-trial
#10
Weirong Chen, Erping Long, Jingjing Chen, Zhenzhen Liu, Zhuoling Lin, Qianzhong Cao, Xiaohang Wu, Qiwei Wang, Duoru Lin, Xiaoyan Li, Lixia Luo, Bo Qu, Haotian Lin, Yizhi Liu
BACKGROUND: The optimum timing of surgery and the approach that should be used during congenital cataract surgery are controversial and present challenges for paediatric cataract surgeons in China. The aim of this study was to compare visual prognoses and postoperative adverse effects of paediatric cataract surgery done at different times and using different surgical approaches. METHODS: In this prospective, randomised controlled trial, we recruited Chinese patients aged 3 months or younger who were diagnosed with bilateral diffuse or total cataracts, but who did not have coexisting ocular, systemic or neurological diseases...
October 2016: Lancet
https://www.readbyqxmd.com/read/27937076/uveitic-glaucoma-long-term-clinical-outcome-and-risk-factors-for-progression
#11
Yael Sharon, Ronit Friling, Moshe Luski, Belén Quizhpe Campoverde, Radgonde Amer, Michal Kramer
PURPOSE: To study the long-term clinical outcomes of uveitic glaucoma and to identify risk factors for progression. METHODS: Retrospective study of uveitic glaucoma patients in two tertiary medical centers in 2003-2015. Patient- and disease-related data was retrieved. Clinical parameters and visual fields measured at predetermined time points were recorded. Outcome measures included maintaining intraocular pressure ≤21 mmHg and preserving visual fields. RESULTS: Included were 34 patients (53 eyes), with a mean follow-up of 7 years...
December 12, 2016: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/27933108/postural-orientation-and-equilibrium-processes-associated-with-increased-postural-sway-in-autism-spectrum-disorder-asd
#12
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/27914310/electrical-potentials-measured-on-the-surface-of-the-knee-reflect-the-changes-of-the-contact-force-in-the-knee-joint-produced-by-postural-sway
#13
Lin Zhu, Martin Garon, Éric Quenneville, Michael D Buschmann, Pierre Savard
Electroarthrography (EAG) is a novel technique for recording potentials on the knee surface that are generated by the compression of articular cartilage and that reflect both compression force and cartilage quality. The mechanical loading of the knee is achieved by transferring the subject's body weight from a bipedal stance to a unipedal stance. We hypothesized that EAG potentials change with postural sway. The study was performed on 20 normal subjects (10 male, 10 female; age 29±10.5 yrs.; mass 68.8±14...
October 18, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27888694/head-movement-measurement-an-alternative-method-for-posturography-studies
#14
REVIEW
L F Ciria, M A Muñoz, J Gea, N Peña, J G V Miranda, P Montoya, J Vila
The present study evaluated the measurement of head movements as a valid method for postural emotional studies using the comparison of simultaneous recording of center of pressure (COP) sway as criterion. Thirty female students viewed a set of 12 pleasant, 12 unpleasant and 12 neutral pictures from the International Affective Picture System, repeated twice, using a block presentation procedure while standing on a force platform (AMTI AccuSway). Head movements were recorded using a webcam (©KPC139E) located in the ceiling in line with the force platform and a light-emitting diode (LED) placed on the top of the head...
November 17, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27867519/force-plate-analyses-of-balance-following-a-balance-exercise-program-during-acute-post-operative-phase-in-individuals-with-total-hip-and-knee-arthroplasty-a-randomized-clinical-trial
#15
Pankaj Jogi, Aleksandra Zecevic, Tom J Overend, Sandi J Spaulding, John F Kramer
OBJECTIVES: Typical rehabilitation programs following total hip arthroplasty and total knee arthroplasty include joint range of motion and muscle-strengthening exercises. Balance and balance exercises following total hip arthroplasty and total knee arthroplasty have not received much attention. The purpose of this study was to determine whether an intervention of balance exercises added to a typical rehabilitation program positively affects patients' balance. METHODS: A total of 63 patients were provided with outpatient physical therapy at their home...
2016: SAGE Open Medicine
https://www.readbyqxmd.com/read/27858700/three-months-of-resistance-training-in-overweight-and-obese-individuals-improves-reactive-balance-control-under-unstable-conditions
#16
Erika Zemková, Ol'a Kyselovičová, Michal Jeleň, Zuzana Kováčiková, Gábor Ollé, Gabriela Řtefániková, Tomáš Vilman, Miroslav Baláž, Timea Kurdiová, Jozef Ukropec, Barbara Ukropcová
BACKGROUND: Contrary to static and dynamic balance, there is a lack of scientific evidence on the training induced changes in reactive balance control in response to unexpected perturbations in overweight and obese individuals. OBJECTIVE: This study evaluates the effect of 3 months of resistance and aerobic training programs on postural responses to unexpected perturbations under stable and unstable conditions in the overweight and obese. METHODS: A group of 17 overweight and obese subjects, divided into two groups, underwent either resistance or aerobic training for a period of 3 months (3 sessions per week)...
November 11, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27852401/-distribution-and-compensation-mechanism-of-aberrations-between-anterior-and-posterior-surface-of-the-cornea-in-myopia-and-myopic-astigmatism-eyes
#17
X J Li, Y Wang, Y N Wu, W J Wu, C J Yu, L L Xu
Objective: To study the compensation mechanism of aberrations between anterior and posterior corneal surface, and to investigate the correlations between corneal aberrations and K values, intraocular pressure and central corneal thickness. Methods: One hundred and sixty-one subjects (300 eyes) with myopia and myopic astigmatism were recruited randomly. Corneal aberrations (anterior, posterior and total) in three different optical zones (2 mm, 4 mm, and 6 mm) centered on the corneal vertex were assessed with a corneal topographer (Sirius)...
November 11, 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/27847269/intrasylvian-intracerebral-hematomas-associated-with-ruptured-mca-aneurysms-a-single-center-series-and-a-review-of-literature
#18
Yupeng Zhang, Quan Hu, Hao Xue, Mingran Zhang, Jie Shen, Lin Deing, Qinglin Liu, Gang Li
OBJECTIVE: Ruptured MCA aneurysms usually lead to SAH,and several cases will represent concomitant intrasylvian or intracerebral hematomas. The objective of this paper was to compare the clinical and radiographic characteristics with their different outcomes. METHODS: The charts of 30 consecutive patients with ruptured MCA aneurysm related intracranial hematoma were retrospectively reviewed. These patients were dichotomized into ISH group and ICH group by the presence of intrahematomal contrast enhancing vessel (IHCEV), and for patients under open surgery, hematoma type was further confirmed by intraoperative observation...
November 12, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27845393/quantitative-analysis-of-upright-standing-in-adults-with-late-onset-pompe-disease
#19
Maria Stella Valle, Antonino Casabona, Agata Fiumara, Dora Castiglione, Giovanni Sorge, Matteo Cioni
Pompe disease is a rare disorder producing muscle weakness and progressive impairments in performing daily motor activities, such as walking and standing. Most studies have focused on dysfunctions at cellular level, restricting the examination of gross motor functions to qualitative or subjective rating scales evaluations. With the aim of providing an instrumented quantification of upright standing in Pompe disease, we used a force platform to measure the center of pressure over three foot positions and with eyes open and closed...
November 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27812748/relationship-between-changes-in-vestibular-sensory-reweighting-and-postural-control-complexity
#20
Brian L Cone, Daniel J Goble, Christopher K Rhea
Complexity measures have become increasingly prominent in the postural control literature. Several studies have found associations between clinical balance improvements and complexity, but the relationship between sensory reweighting and complexity changes has remained unobserved. The purpose of this study was to determine the relationship between sensory reweighting via Wii Fit balance training and complexity. Twenty healthy adults completed 6 weeks of training. Participants completed the sensory organization test (SOT) before and after the sessions...
November 3, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
keyword
keyword
104017
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"