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posterior center of pressure

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https://www.readbyqxmd.com/read/29145576/different-filling-patterns-of-the-choriocapillaris-in-fluorescein-and-indocyanine-green-angiography-in-primate-eyes-under-elevated-intraocular-pressure
#1
Naoto Hanyuda, Hideo Akiyama, Yukitoshi Shimoda, Ryo Mukai, Morihiko Sano, Yoichiro Shinohara, Shoji Kishi
Purpose: To investigate the hemodynamics of the choriocapillaris in primate eyes under elevated intraocular pressure. Methods: Indocyanine green angiography (ICGA) and fluorescein angiography (FA) were performed in two monkeys after elevation of the intraocular pressure (IOP) to 35 and 60 mm Hg. Results: ICGA and FA showed no perfusion delays in the choriocapillaris at 35 mm Hg. The slow dye filling at 60 mm Hg made it possible to observe the early phase angiography sequence...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29141386/-clinical-characteristics-and-surgical-effect-observation-of-congenital-aniridia-combined-with-cataract
#2
X H Wu, Q Z Cao, Y X Hu, J N Lin, H T Lin, W R Chen, Y Z Liu
Objective: To analyze the clinical manifestations, surgical approaches and postoperative prognosis for the cases of congenital aniridia combined with cataract. Methods: In this retrospective case series, 26 patients diagnosed with congenital aniridia combined with cataract were collected from Zhongshan Ophthalmic Center from February 2002 to August 2016. The Clinical data were collected to analyze the clinical features, surgical approaches and postoperative prognosis. T-test was used for statistical analysis...
November 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29120261/effects-of-vision-and-cognitive-load-on-static-postural-control-in-subjects-with-and-without-patellofemoral-pain-syndrome
#3
Afsaneh Zeinalzadeh, Saeed Talebian, Soofia Naghdi, Mahyar Salavati, Salman Nazary-Moghadam, Bahareh Zeynalzadeh Ghoochani
OBJECTIVE: To compare the effects of vision and cognitive load on static postural control in subjects with and without patellofemoral pain syndrome (PFPS). METHODS: Twenty-eight PFPS patients and 28 controls participated in the study. Postural control was assessed in isolation as well as with visual manipulation and cognitive loading on symptomatic limb. The outcome measures of postural control were quantified in terms of area, anterior-posterior (AP), medial-lateral (ML), and mean velocity (MV) of the displacements of center of pressure (COP)...
November 9, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29093770/associates-and-prognosis-of-giant-left-atrium-single-center-experience
#4
Hyoeun Kim, Young-Ah Park, Sung Min Choi, Hyemoon Chung, Jong-Youn Kim, Pil-Ki Min, Young Won Yoon, Byoung Kwon Lee, Bum-Kee Hong, Se-Joong Rim, Hyuck Moon Kwon, Eui-Young Choi
Background: Left atrial (LA) remodeling develops as a result of longstanding pressure overload. However, determinants and clinical outcome of excessive remodeling, so called giant left atrium (GLA), are not clear. Methods: Clinical characteristics of patients with GLA (antero-posterior diameter higher than 65 mm), including echo-Doppler parameters, and follow-up clinical outcomes from a tertiary referral hospital were investigated. Results: Among 68519 consecutive primary patients who underwent echocardiography over a period of 10 years, data from 163 GLA cases (0...
September 2017: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29079459/effect-of-noisy-galvanic-vestibular-stimulation-on-center-of-pressure-sway-of-static-standing-posture
#5
Yasuto Inukai, Naofumi Otsuru, Mitsuhiro Masaki, Kei Saito, Shota Miyaguchi, Sho Kojima, Hideaki Onishi
BACKGROUND: The vestibular system is involved in the control of standing balance. Galvanic vestibular stimulation (GVS) is a noninvasive technique that can stimulate the vestibular system. In recent years, noisy GVS (nGVS) using noise current stimulation has been attempted, but it has not been clarified whether it affects postural sway in open-eye standing. OBJECTIVE: The purpose of this study was to clarify the influence of nGVS on the center of pressure (COP) sway measurement in open-eye standing postural control and identify the responders of nGVS...
October 17, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29072015/-clinical-trials-for-thyroidectomy-under-acupuncture-aided-anesthesia-by-using-electroacupuncture-or-transcutaneous-acupoint-electrical-stimulation-of-different-acupoints
#6
Yin-Qiu Gao, Qing Jia, Shen Xie, Li-Wei Yin, Ji-Xiu Xue, Li-Hua Kou, Bing Xue, Jun-Ling Liu, Jin-Hua Shi
OBJECTIVE: To observe the effectiveness of transcutaneous acupoint electrical stimulation (TAES) or electroacupuncture (EA) stimulation of different acupoints in combination with anesthetics in the management of thyroidectomy patients, so as to choose a better stimulating method and most effective acupoints for thyroidectomy. METHODS: A total of 216 thyroidectomy patients (ASA Ⅰ-Ⅱ grades) with thyroid gland adenoma, thyroid cyst or thyroid nodules from 3 hospitals (3 research centers) were randomized into 6 groups, i...
August 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29060412/evaluation-of-postural-instability-in-stroke-patient-during-quiet-standing
#7
Wei Wang, Ke Li, Na Wei, Cuiping Yin, Shouwei Yue
This study was designed to investigate the postural instability in stroke survivals during quiet standing. Eleven stroke patients and 11 healthy volunteers (gender- and age-matched) were recruited for this experiment. The center of pressure (COP) signals from both planta in anterior-posterior (AP) and medial-lateral (ML) directions were recorded using a three-dimensional motion capture system (BTS Bioengineering Corp, Italy) when subjects stood on the two adjacent force platforms quietly with their eyes open (EO) for 30 s and with their eyes close (EC) for another 30 s...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29037616/the-effect-of-motor-control-training-on-kinetics-variables-of-patients-with-non-specific-low-back-pain-and-movement-control-impairment-prospective-observational-study
#8
Vahid Mohammadi, Amir Letafatkar, Haydar Sadeghi, AmirAli Jafarnezhadgero, Roger Hilfiker
INTRODUCTION: The purpose of this study was to determine the effects of motor control training on pain, disability and motor control indices in patients with nonspecific low back pain (NSLBP) and movement control impairment (MCI) and also to evaluate the correlation between the changes in disability and the motor control indices. METHODS: Thirty people with NSLBP and MCI based on a clinical examination were following either motor control training or normal activity over 8 weeks...
October 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29021758/acute-neuromuscular-adaptations-in-the-postural-control-of-patients-with-parkinson-s-disease-after-perturbed-walking
#9
Cristian F Pasluosta, Simon Steib, Sarah Klamroth, Heiko Gaßner, Julia Goßler, Julius Hannink, Vinzenz von Tscharner, Klaus Pfeifer, Juergen Winkler, Jochen Klucken, Bjoern M Eskofier
Patients suffering from Parkinson's disease (PD) present motor impairments reflected in the dynamics of the center of pressure (CoP) adjustments during quiet standing. One method to study the dynamics of CoP adjustments is the entropic half-life (EnHL), which measures the short-term correlations of a time series at different time scales. Changes in the EnHL of CoP time series suggest neuromuscular adaptations in the control of posture. In this study, we sought to investigate the immediate changes in the EnHL of CoP adjustments of patients with PD during one session of perturbed (experimental group) and unperturbed treadmill walking (control group)...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29016477/shod-versus-barefoot-effects-on-force-and-power-development-during-a-conventional-deadlift
#10
Mark E Hammer, Rudi A Meir, John W Whitting, Zachary J Crowley-McHattan
The kinetics of a conventional deadlift in shod (S) versus unshod (US) footwear conditions in 10 male participants (mean ± SD, age = 27.0 ± 5.8 years; weight = 78.7 ± 11.5 kg; height = 175.8 ± 8.2 cm; 1RM deadlift = 155.8 ± 25.8 kg) was assessed in two testing sessions. A counterbalanced, crossover experimental design was used with different loads (60% and 80% 1RM). Four sets of four repetitions were prescribed per session with two sets per shoe and with each shoe condition involving one set per load. Peak vertical force (PF), rate of force development (RFD), time to peak force (TPF), anterior-posterior (COP-AP) and medio-lateral (COP-ML) center of pressure excursion, and barbell peak power (PP) data were recorded during all repetitions...
October 7, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29016446/incidence-and-risk-factors-of-acute-pancreatitis-following-scoliosis-surgery-a-prospective-study
#11
Fan Feng, Haining Tan, Xingye Li, Yi Qiao, Chong Chen, Youxi Lin, Zheng Li, Jianxiong Shen
STUDY DESIGN: A prospective study. OBJECTIVE: To investigate the incidence and risk factors of acute pancreatitis after scoliosis surgery. SUMMARY OF BACKGROUND DATA: Pancreatitis has been recognized as a possible complication of extra-abdominal surgeries. However, there were few reports on the incidence and risk factors of acute pancreatitis following scoliosis surgery. METHODS: A prospective clinical study was performed at our center from September 2014 to October 2015...
October 9, 2017: Spine
https://www.readbyqxmd.com/read/28993042/effect-of-sacroiliac-manipulation-on-postural-sway-in-quiet-standing-a-randomized-controlled-trial
#12
Mohammad Reza Farazdaghi, Alireza Motealleh, Forough Abtahi, Andrej Panjan, Nejc Šarabon, Farahnaz Ghaffarinejad
BACKGROUND: Sacroiliac joint manipulation can alter joint and muscle control mechanisms through local and remote effects. Postural balance is controlled by supraspinal (rambling) and spinal-peripheral (trembling) mechanisms. A manipulation may interfere with postural control in quiet standing. OBJECTIVES: To evaluate the immediate effects of sacroiliac joint manipulation on postural control in patients with (1) sacroiliac dysfunction and (2) to determine whether rambling and trembling are affected by sacroiliac joint manipulation...
September 8, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28938361/columellar-reconstruction-following-nasal-cpap-injury
#13
Catherine S Chang, Jordan W Swanson, Anthony Wilson, David W Low, Scott P Bartlett
Nasal continuous positive airway pressure (nCPAP) is utilized increasingly to treat pulmonary immaturity in premature neonates. Nasal injury is common with nCPAP use, with full thickness tissue loss at the columella among the most devastating complications.Columellar necrosis often imparts a full thickness injury to the overlying columellar skin, the medial crura of the lower lateral nasal cartilages, as well as the anteromedial inner nasal mucosal lining, and potentially the anterior septal cartilage. Consequently, the columella can become scarred and shortened...
September 15, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28934067/transient-effects-of-gaze-stability-exercises-on-postural-stability-in-patients-with-posterior-circulation-stroke
#14
Tsubasa Mitsutake, Maiko Sakamoto, Kozo Ueta, Etsuo Horikawa
The authors sought to investigate if short-term gaze stability exercises have an effect on postural stability of dynamic standing during neck movement in patients with posterior circulation stroke (PCS). Patients in both PCS and non-PCS groups were assigned to either an intervention or control group. The intervention group performed the gaze stability exercises for 10 min while the control group was merely resting. The center of pressure velocity was calculated to evaluate the postural stability. After intervention, PCS and non-PCS showed a significant reduction in center of pressure velocity during dynamic standing with eyes closed condition, and the PCS group showed a significant improvement in eye-opened condition...
September 21, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28918002/effect-of-natural-sagittal-trunk-lean-on-standing-balance-in-untreated-scoliotic-girls
#15
Sébastien Leteneur, Émilie Simoneau-Buessinger, Franck Barbier, Charles-Hilaire Rivard, Paul Allard
BACKGROUND: Generally, scoliotic girls have a tendency to lean further back than a comparable group of non-scoliotic girls. To date, no study has addressed how standing balance in untreated scoliotic girls is affected by a natural backwardly or forwardly inclined trunk. METHODS: 27 able-bodied young girls and 27 young girls with a right thoracic curve were classified as leaning forward or backward according to the median of their trunk sagittal inclination. Participants stood upright barefoot...
September 6, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28912279/differences-in-morphologic-and-hemodynamic-characteristics-for-phases-based-intracranial-aneurysm-locations
#16
N Varble, H Rajabzadeh-Oghaz, J Wang, A Siddiqui, H Meng, A Mowla
BACKGROUND AND PURPOSE: Several recent prospective studies have found that unruptured intracranial aneurysms at various anatomic locations have different propensities for future rupture. This study aims to uncover the lack of understanding regarding rupture-prone characteristics, such as morphology and hemodynamic factors, associated with different intracranial aneurysm location. MATERIALS AND METHODS: We investigated the characteristics of 311 unruptured aneurysms at our center...
September 14, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28910658/postural-regulatory-strategies-during-quiet-sitting-are-affected-in-individuals-with-thoracic-spinal-cord-injury
#17
Matija Milosevic, Dany H Gagnon, Philippe Gourdou, Kimitaka Nakazawa
Thoracic spinal cord injury (SCI) can have significant negative consequences, which can affect the ability to maintain unsupported sitting. The objectives of this study were to compare postural control of individuals with high- and low-thoracic SCI to able-bodied people and evaluate the effects of upper-limb support on postural control during quiet sitting. Twenty-five individuals were recruited into: (a) high-thoracic SCI; (b) low-thoracic SCI; and (c) able-body subgroups. Participants were seated and asked to maintain a steady balance in the following postures: (1) both hands resting on thighs; (2) both arms crossed over the chest; and (3) both arms extended...
October 2017: Gait & Posture
https://www.readbyqxmd.com/read/28910656/test-retest-reliability-of-a-balance-testing-protocol-with-external-perturbations-in-young-healthy-adults
#18
Shawn M Robbins, Ryan M Caplan, Daniel I Aponte, Nancy St-Onge
External perturbations are utilized to challenge balance and mimic realistic balance threats in patient populations. The reliability of such protocols has not been established. The purpose was to examine test-retest reliability of balance testing with external perturbations. Healthy adults (n=34; mean age 23 years) underwent balance testing over two visits. Participants completed ten balance conditions in which the following parameters were combined: perturbation or non-perturbation, single or double leg, and eyes open or closed...
October 2017: Gait & Posture
https://www.readbyqxmd.com/read/28893391/the-effects-of-early-stages-of-aging-on-postural-sway-a-multiple-domain-balance-assessment-using-a-force-platform
#19
Adriana M Degani, Charles T Leonard, Alessander Danna-Dos-Santos
Technical advancements in instrumentation and analytical methods have improved the ability of assessing balance control. This study investigated the effects of early stages of aging on postural sway using traditional and contemporary postural indices from different domains. Eleven healthy young adults and fourteen healthy non-faller older adults performed two postural tasks: (a) functional limits of stability and (b) unperturbed bipedal stance for 120s. Postural indices from spatial, temporal, frequency, and structural domains were extracted from the body's center of pressure (COP) signals and its Rambling and Trembling components...
September 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28880935/post-fatigue-recovery-of-power-postural-control-and-physical-function-in-older-women
#20
RANDOMIZED CONTROLLED TRIAL
Stephen A Foulis, Stephanie L Jones, Richard E van Emmerik, Jane A Kent
Low muscle power, particularly at high velocities, has been linked to poor physical function in older adults. Any loss in muscle power following fatiguing exercise or daily activities could impact physical function and postural control until power has fully recovered. To test the overall hypothesis that a common task such as walking can result in prolonged power loss and decreased physical function and balance, 17 healthy older (66-81 years) women completed a 32-min walking test (32MWT) designed to induce neuromuscular fatigue, followed by 60min of recovery (60R)...
2017: PloS One
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