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https://www.readbyqxmd.com/read/28325024/balance-quality-assessment-as-an-early-indicator-of-physical-frailty-in-older-people
#1
Aly Chkeir, Doha Safieddine, D Bera, M Collart, J L Novella, M Drame, David J Hewson, Jacques Duchene
Frailty is an increasingly common geriatric condition that results in an increased risk of adverse health outcomes such as falls. The most widely-used means of detecting frailty is the Fried phenotype, which includes several objective measures such as grip strength and gait velocity. One method of screening for falls is to measure balance, which can be done by a range of techniques including the assessment of the Centre of Pressure (CoP) during a balance assessment. The Balance Quality Tester (BQT) is a device based on a commercial bathroom scale that can evaluate balance quality...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324939/visual-transparent-visual-occlusion-an-eeg-and-cop-study
#2
Kwang Leng Goh, Susan Morris, Wee Lih Lee, Alexander Ring, Tele Tan
Electroencephalography (EEG) and centre of pressure (COP) data were recorded in young adults for 60 seconds during standing in visual transparent (VT) and visual occlusion (VO) conditions. In both of these conditions, participants wore VO liquid crystal spectacles which allowed the experimenter to accurately control visual information being presented or occluded to the participant. Alpha band (8-13 Hz) revealed significant differences in channel-averaged power spectrum in these two conditions, but not theta band (4-8 Hz) and beta band (13-30 Hz)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324753/error-augmentation-feedback-for-lateral-weight-shifting
#3
Kevin O'Brien, Charles R Crowell, James Schmiedeler
This study examines the effect of error augmentation of center of pressure (CoP) visual feedback on the performance of a lateral weight shifting task. Error augmentation emphasizes deviations from a standard CoP trajectory generated from existing data of over 2000 weight shifts collected with young, healthy subjects. Thirty-six subjects completed nine lateral weight shifting sessions, of which four were training sessions between each of the five testing sessions. Half of the subjects received error augmentation feedback during the training sessions, while the other half received the unaltered, control feedback...
March 6, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28318852/cardiorespiratory-optimal-point-during-exercise-testing-as-a-predictor-of-all-cause-mortality
#4
Plínio S Ramos, Claudio Gil S Araújo
INTRODUCTION AND AIM: The cardiorespiratory optimal point (COP) is a novel index, calculated as the minimum oxygen ventilatory equivalent (VE/VO2) obtained during cardiopulmonary exercise testing (CPET). In this study we demonstrate the prognostic value of COP both independently and in combination with maximum oxygen consumption (VO2max) in community-dwelling adults. METHODS: Maximal cycle ergometer CPET was performed in 3331 adults (66% men) aged 40-85 years, healthy (18%) or with chronic disease (81%)...
March 17, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28314390/oxysterols-in-cosmetics-determination-by-planar-solid-phase-extraction-and-gas-chromatography-mass-spectrometry
#5
S Schrack, C Hohl, W Schwack
Sterol oxidation products (SOPs) are linked to several toxicological effects. Therefore, investigation of potential dietary uptake sources particularly food of animal origin has been a key issue for these compounds. For the simultaneous determination of oxysterols from cholesterol, phytosterols, dihydrolanosterol and lanosterol in complex cosmetic matrices, planar solid phase extraction (pSPE) was applied as clean-up tool. SOPs were first separated from more non-polar and polar matrix constituents by normal phase thin-layer chromatography and then focussed into one target zone...
November 18, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28300574/sex-steroid-receptor-expression-in-idiopathic-pulmonary-fibrosis
#6
Mitra Mehrad, Humberto E Trejo Bittar, Samuel A Yousem
Usual interstitial pneumonia (UIP) is characterized by progressive scarring of the lungs and is associated with high morbidity and mortality despite therapeutic interventions. Sex steroid receptors have been demonstrated to play an important role in chronic lung conditions; however, their significance is unknown in patients with UIP. We retrospectively reviewed 40 idiopathic UIP cases for the expression of hormonal receptors. Forty cases including 10 normal lung, 10 cryptogenic organizing pneumonia (COP), 10 idiopathic organizing diffuse alveolar damage (DAD), 7 hypersensitivity pneumonitis (HP) and 3 nonspecific interstitial pneumonitis (NSIP) served as controls...
March 11, 2017: Human Pathology
https://www.readbyqxmd.com/read/28291295/-association-between-parenting-styles-and-symptoms-of-attention-deficit-hyperactivity-disorder
#7
Esra Çöp, S Ebru Çengel Kültür, Gülser Şenses Dinç
OBJECTIVE: We aimed to study characteristics of child and mother reported parenting styles of children with Attention Deficit Hyperacitivity Disorder (ADHD) and association of parenting styles of mothers with demographic and clinical variables like ADHD symptoms, sex, age, ADHD subtype, and comorbidity. METHOD: 58 children with ADHD and 30 healthy children were included in this study. All children were assessed by The Schedule for Affective Disorders and Schizophrenia for School Aged Children- Present and Lifetime Version...
2017: Türk Psikiyatri Dergisi, Turkish Journal of Psychiatry
https://www.readbyqxmd.com/read/28290191/effects-of-progressive-resistance-exercise-in-akinetic-rigid-parkinson-s-disease-patients-a-randomized-controlled-trial
#8
Luis Santos, Javier Fernandez-Rio, Kristian Winge, Beatriz Barragán-Pérez, Lucía González-Gómez, Vicente Rodríguez-Pérez, Vicente González-Díez, Alejandro Lucía, Eliseo Iglesias-Soler, Xurxo Dopico-Calvo, Miguel Fernández-Del-Olmo, Miguel Del-Valle, Miguel Blanco-Traba, Oscar E Suman, Javier Rodríguez-Gómez
BACKGROUND: Progressive resistance exercise (PRE) can have a positive effect in individuals with Parkinson's disease (PD). However, the effect of PRE may vary with the clinical subtype of PD. To date, no study has assessed the effects of PRE in the different subtypes of PD. AIM: The aim of the present study was to assess the effects of PRE in PD patients with akinesia and rigidity (AR-subtype). DESIGN: A randomized controlled trial was conducted...
March 13, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28287707/through-space-ultrafast-photoinduced-electron-transfer-dynamics-of-a-c70-encapsulated-bisporphyrin-covalent-organic-polyhedron-in-a-low-dielectric-medium
#9
Michael Ortiz, Sung Cho, Jens Niklas, Seonah Kim, Oleg G Poluektov, Wei Zhang, Garry Rumbles, Jaehong Park
Ultrafast photoinduced electron transfer (PIET) dynamics of a C70-encapsulated bisporphyrin covalent organic polyhedron hybrid (C70@COP-5) is studied in a nonpolar toluene medium with fluorescence and transient absorption spectroscopies. This structurally rigid donor (D)-acceptor (A) molecular hybrid offers a new platform featuring conformationally predetermined cofacial D-A orientation with a fixed edge-to-edge separation, REE (2.8 Å), without the aid of covalent bonds. Sub-picosecond PIET (τET ≤ 0.4 ps) and very slow charge recombination (τCR ≈ 600 ps) dynamics are observed...
March 20, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28285746/single-and-multiple-step-balance-recovery-responses-can-be-different-at-first-step-lift-off-following-lateral-waist-pull-perturbations-in-older-adults
#10
Masahiro Fujimoto, Woei-Nan Bair, Mark W Rogers
An inability to recover lateral balance with a single step is predictive of future falls in older adults. This study investigated if balance stability at first step lift-off (FSLO) would be different between multiple and single stepping responses to lateral perturbations. 54 healthy older adults received left and right waist-pulls at 5 different intensities (levels 1-5). Crossover stepping responses at and above intensity level 3 that induced both single and multiple steps were analyzed. Whole-body center of mass (COM) and center of pressure (COP) positions in the medio-lateral direction with respect to the base of support were calculated...
February 21, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28284667/center-of-pressure-and-center-of-mass-behavior-during-gait-initiation-on-inclined-surfaces-a-statistical-parametric-mapping-analysis
#11
Marcus Fraga Vieira, Ademir Alves de Brito, Georgia Cristina Lehnen, Fábio Barbosa Rodrigues
This study analyzed gait initiation (GI) on inclined surfaces with 68 young adult subjects of both sexes. Ground reaction forces and moments were collected using two AMTI force platforms, of which one was in a horizontal position and the other was inclined by 8% in relation to the horizontal plane. Departing from a standing position, each participant executed three trials in the following conditions: horizontal position (HOR), inclined position at ankle dorsi-flexion (UP), and inclined position at ankle plantar-flexion (DOWN)...
February 27, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28282797/relief-of-knee-flexion-contracture-and-gait-improvement-following-adaptive-training-for-an-assist-device-in-a-transtibial-amputee-a-case-study
#12
Sol-Bi Kim, Chang-Yong Ko, Jinho Son, Sungjae Kang, Jeicheong Ryu, Museong Mun
BACKGROUND: Management of a knee contracture is important for regaining gait ability in transtibial amputees. However, there has been little study of prosthesis training for enhancing mobility and improving range of motion in cases of restricted knee extension. OBJECTIVE: This study aimed to evaluate the effects of adaptive training for an assist device (ATAD) for a transtibial amputee with a knee flexion contracture (KFC). A male transtibial amputee with KFC performed 4 months of ATAD with a multidisciplinary team...
2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28279602/chymotrypsin-with-sialendoscopy-assisted-surgery-for-the-treatment-of-chronic-obstructive-parotitis
#13
H-J Sun, J-Q Xiao, Q-H Qiao, X Bao, C-B Wu, Q Zhou
Chronic obstructive parotitis (COP) is a common disease of the parotid gland. A total of 104 patients with COP were identified and randomized into a treatment group (52 cases) and a control group (52 cases). All patients underwent sialography and salivary gland scintigraphy (SGS) examinations before surgery. The patients in the treatment group received chymotrypsin combined with gentamicin via interventional sialendoscopy to irrigate the duct, and the control group received gentamicin alone. All patients were asked to record their pain on a visual analogue scale (VAS) before treatment and at 1 week, 2 weeks, 1 month, 3 months, and 6 months after surgery...
March 6, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28276913/postural-stability-clicker-reaction-time-and-bow-draw-force-predict-performance-in-elite-recurve-archery
#14
Wayne Spratford, Rhiannon Campbell
Recurve archery is an Olympic sport that requires extreme precision, upper body strength and endurance. The purpose of this research was to quantify how postural stability variables both pre- and post-arrow release, draw force, flight time, arrow length and clicker reaction time, collectively, impacted on the performance or scoring outcomes in elite recurve archery athletes. Thirty-nine elite-level recurve archers (23 male and 16 female; mean age = 24.7 ± 7.3 years) from four different countries volunteered to participate in this study prior to competing at a World Cup event...
February 14, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28269494/can-an-anti-gravity-treadmill-improve-stability-of-children-with-cerebral-palsy
#15
P M Birgani, M Ashtiyani, A Rasooli, M Shahrokhnia, A Shahrokhi, M M Mirbagheri
We aimed to study the effects of an anti-gravity treadmill (AlterG) training on balance and postural stability in children with cerebral palsy (CP). AlterG training was performed 3 days/week for 8 weeks, with up to 45 minutes of training per session. The subject was evaluated before and after the 8-week training. The effects of training on the balance and postural stability was evaluated based on the Romberg test that was performed by using a posturography device. The parameters quantifying Center-of-Pressure (CoP) were calculated using different analytical approaches including power spectral density and principal components analyses...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269388/testing-the-assumption-of-normality-in-body-sway-area-calculations-during-unipedal-stance-tests-with-an-inertial-sensor
#16
Kyoung Jae Kim, Jennifer Lucarevic, Christopher Bennett, Ignacio Gaunaurd, Robert Gailey, Vibhor Agrawal
The quantification of postural sway during the unipedal stance test is one of the essentials of posturography. A shift of center of pressure (CoP) is an indirect measure of postural sway and also a measure of a person's ability to maintain balance. A widely used method in laboratory settings to calculate the sway of body center of mass (CoM) is through an ellipse that encloses 95% of CoP trajectory. The 95% ellipse can be computed under the assumption that the spatial distribution of the CoP points recorded from force platforms is normal...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269294/linear-discriminant-analysis-for-symmetric-lifting-recognition-of-skilled-logistic-experts-by-center-of-pressure-trajectory
#17
Hieyong Jeong, Michiko Kido, Yuko Ohno
GOAL: The main purpose of the present study was to propose a recognizing method to analyze characteristics of symmetric lifting of skilled logistic experts by center of pressure (CoP) trajectories. Although it has been known that good posture helps reduce the intradiscal loads on lumbar discs, the most significant problem was that most of logistic workers did not know whether the current posture was proper or not. METHODS: The experiment of lifting was performed three times under 18 kg loads with closed eyes...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268966/attractor-shape-descriptors-for-balance-impairment-assessment-in-parkinson-s-disease
#18
Anirudh Som, Narayanan Krishnamurthi, Vinay Venkataraman, Pavan Turaga
In this paper, we propose a computational framework using high-dimensional shape descriptors of reconstructed attractors of center-of-pressure (CoP) tracings collected from subjects with Parkinson's disease while performing dynamical posture shifts, to quantitatively assess balance impairment. Using a dataset collected from 60 subjects, we demonstrated that the proposed method outperforms traditional methods, such as dynamical shift indices and use of chaotic invariants, in assessment of balance impairment.
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268273/postural-flexibility-during-quiet-standing-in-healthy-elderly-and-patients-with-parkinson-s-disease
#19
Kazuyuki Matsuda, Yasuyuki Suzuki, Naoya Yoshikawa, Tomohisa Yamamoto, Ken Kiyono, Takao Tanahashi, Takuyuki Endo, Kei Fukada, Kunihiko Nomura, Saburo Sakoda, Taishin Nomura
Postural instability is one of the predominant symptoms of Parkinson's disease (PD). Despite its significant impact on the deterioration in quality of life in PD patients, mechanistic causes of the instability have not been clarified. Joint inflexibility at ankle and hip joints might be such a major cause, leading to small variability in the center of pressure (CoP) during quiet stance. However, this conjecture is still controversial. Thus, quantitative characterization of CoP patterns during quiet stance in PD patients remains a matter of research...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267434/dietary-phytochemicals-in-the-protection-against-oxysterol-induced-damage
#20
REVIEW
Antonio Cilla, Amparo Alegría, Alessandro Attanzio, Guadalupe Garcia-Llatas, Luisa Tesoriere, Maria A Livrea
The intake of fruits and vegetables is associated with reduced incidence of many chronic diseases. These foods contain phytochemicals that often possess antioxidant and free radical scavenging capacity and show anti-inflammatory action, which are also the basis of other bioactivities and health benefits, such as anticancer, anti-aging, and protective action for cardiovascular diseases, diabetes mellitus, obesity and neurodegenerative disorders. Many factors can be included in the etiopathogenesis of all of these multifactorial diseases that involve oxidative stress, inflammation and/or cell death processes, oxysterols, i...
March 3, 2017: Chemistry and Physics of Lipids
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