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https://www.readbyqxmd.com/read/28211643/postural-analysis-in-a-pediatric-cohort-of-patients-with-ehlers-danlos-syndrome-a-pilot-study
#1
Claudio Lisi, Serena Monteleone, Carmine Tinelli, Berardo Rinaldi, Giuseppe Di Natali, Salvatore Savasta
BACKGROUND: The Ehlers-Danlos Syndrome (EDS) is a rare disorder affecting the connective tissue. EDS patients may suffer of proprioception and balance impairment but all the studies dealing with such symptoms have been addressed to adult subjects. The Study of such impairment in younger patients may lead to a better awareness of own motor abilities and to a focused rehabilitative intervention. Therefore, our work aims to assess the occurrence of these alterations in a pediatric cohort of EDS patients...
February 17, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28211526/stable-optical-trapping-and-sensitive-characterization-of-nanostructures-using-standing-wave-raman-tweezers
#2
Mu-Ying Wu, Dong-Xiong Ling, Lin Ling, William Li, Yong-Qing Li
Optical manipulation and label-free characterization of nanoscale structures open up new possibilities for assembly and control of nanodevices and biomolecules. Optical tweezers integrated with Raman spectroscopy allows analyzing a single trapped particle, but is generally less effective for individual nanoparticles. The main challenge is the weak gradient force on nanoparticles that is insufficient to overcome the destabilizing effect of scattering force and Brownian motion. Here, we present standing-wave Raman tweezers for stable trapping and sensitive characterization of single isolated nanostructures with a low laser power by combining a standing-wave optical trap with confocal Raman spectroscopy...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210057/a-comparison-of-the-balance-and-gait-function-between-children-with-down-syndrome-and-typically-developing-children
#3
Hee-Kyoung Jung, EunJung Chung, Byoung-Hee Lee
[Purpose] The purpose of this study was to compare the balance and gait functions of children with Down syndrome and typically developing children according to age. [Subjects and Methods] The subjects were 16 children with Down syndrome and 20 children with typical development. The one leg standing test, Romberg's test (open eyes/closed eyes), sharpened Romberg's (open eyes/closed eyes), functional reaching test and GAITRite were used for this study in order to measure the children's balance and gait function...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28210030/changes-in-postural-strategy-during-exercise-against-perturbation-using-the-balance-exercise-assist-robot-a-pilot-study
#4
Norihide Itoh, Shigeo Tanabe, Satoshi Hirano, Eiichi Saitoh, Jumpei Kawabata, Daisuke Imoto, Yasuo Mikami, Toshikazu Kubo
[Purpose] To clarify the changes in postural strategy by evaluating leg joint motion and muscle activity before and after continuous exercise against perturbation using the Balance Exercise Assist Robot (BEAR). [Subjects and Methods] Nine healthy subjects (male 7, female 2; mean age 23 ± 1 years) performed a postural perturbation coping exercise only. In the task, the robot leaned and moved automatically. Participants were instructed to maintain their default upright position and they performed the exercise five times in a row (1 minute/trial)...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28209741/frequency-characteristics-of-human-muscle-and-cortical-responses-evoked-by-noisy-achilles-tendon-vibration
#5
Robyn Lynne Mildren, Ryan M Peters, Aimee J Hill, Jean-Sebastien Blouin, Mark Gregory Carpenter, J Timothy Inglis
Noisy stimuli, along with linear systems analysis, have proven to be effective for mapping functional neural connections. We explored the use of noisy (10-115 Hz) Achilles tendon vibration to examine proprioceptive reflexes in the triceps surae muscles in standing healthy young adults (n = 8). We also examined the association between noisy vibration and electrical activity recorded over the sensorimotor cortex using electroencephalography. We applied two-minutes of vibration and recorded ongoing muscle activity of the soleus and gastrocnemii using surface electromyography (EMG)...
February 16, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28206847/vocation-belongingness-and-balance-a-qualitative-study-of-veterinary-student-well-being
#6
Jacqueline M Cardwell, Elisa G Lewis
An elevated risk for suicide among veterinarians has stimulated research into the mental health of the veterinary profession, and more recently attention has turned to the veterinary student population. This qualitative study sought to explore UK veterinary students' perceptions and experiences of university life, and to consider how these may affect well-being. Semi-structured interviews were conducted with 18 students from a single UK school who were purposively selected to include perspectives from male, female, graduate-entry, standard-entry (straight from high school), and widening participation students across all 5 years of the program...
2017: Journal of Veterinary Medical Education
https://www.readbyqxmd.com/read/28197674/role-of-vision-in-sighted-and-blind-soccer-players-in-adapting-to-an-unstable-balance-task
#7
María Campayo-Piernas, Carla Caballero, David Barbado, Raúl Reina
This study tested whether a compensatory hypothesis exists on postural control during standing unstable balance tasks comparing blind soccer players (n = 7) to sighted soccer players (n = 15) and sighted sedentary individuals (n = 6). All subjects performed a pre-test, a training of ten practice trials on a single day, and a post-test balance test. All tests were performed on an unstable surface placed on a force platform and under closed-eyes conditions, and a final test was performed with open eyes...
February 14, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28197198/application-of-a-paraplegic-gait-orthosis-in-thoracolumbar-spinal-cord-injury
#8
Lang Shuai, Guo-Hua Yu, Zhen Feng, Wan-Song Wang, Wei-Ming Sun, Lu Zhou, Yin Yan
Paraplegic gait orthosis has been shown to help paraplegic patients stand and walk, although this method cannot be individualized for patients with different spinal cord injuries and functional recovery of the lower extremities. There is, however, a great need to develop individualized paraplegic orthosis to improve overall quality of life for paraplegic patients. In the present study, 36 spinal cord (below T4) injury patients were equally and randomly divided into control and observation groups. The control group received systematic rehabilitation training, including maintenance of joint range of motion, residual muscle strength training, standing training, balance training, and functional electrical stimulation...
December 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/28190683/there-and-back-again-two-views-on-the-protein-folding-puzzle
#9
REVIEW
Alexei V Finkelstein, Azat J Badretdin, Oxana V Galzitskaya, Dmitry N Ivankov, Natalya S Bogatyreva, Sergiy O Garbuzynskiy
The ability of protein chains to spontaneously form their spatial structures is a long-standing puzzle in molecular biology. Experimentally measured folding times of single-domain globular proteins range from microseconds to hours: the difference (10-11 orders of magnitude) is the same as that between the life span of a mosquito and the age of the universe. This review describes physical theories of rates of overcoming the free-energy barrier separating the natively folded (N) and unfolded (U) states of protein chains in both directions: "U-to-N" and "N-to-U"...
January 27, 2017: Physics of Life Reviews
https://www.readbyqxmd.com/read/28185317/static-postural-stability-in-women-with-stress-urinary-incontinence-effects-of-vision-and-bladder-filling
#10
Daria Chmielewska, Magdalena Stania, Kajetan Słomka, Edward Błaszczak, Jakub Taradaj, Patrycja Dolibog, Grzegorz Juras
AIMS: This case-control study was designed to compare static postural stability between women with stress urinary incontinence and continent women and it was hypothesized that women with incontinence aged around 50 years also have balance disorders. METHODS: Eighteen women with incontinence and twelve women without incontinence aged 50-55 years participated in two 60-s trials of each of four different testing conditions: eyes open/full bladder, eyes open/empty bladder, eyes closed/full bladder, eyes closed/empty bladder...
February 10, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28185071/sagittal-spinal-alignment-in-asymptomatic-patients-over-30%C3%A2-years-old-in-the-korean-population
#11
Seil Sohn, Chun Kee Chung, Yongjung Jay Kim, Inbo Han, Su Min Kang, Ji Won Yoon, Hyejin Kim
BACKGROUND: We aim to provide sagittal and pelvic parameters according to different age groups in an asymptomatic population all over 30 years old and to investigate the possible causes of changes in these parameters. METHODS: Whole-spine, standing lateral radiographs were taken in 128 asymptomatic Korean people over 30 years old. The spinal parameters (the total thoracic kyphosis (TTK), maximal lumbar lordosis (MLL), total lumbar lordosis (TLL), lower lumbar lordosis (LLL), thoracolumbar junctional angle (TLJA), and lumbar inclination (LI)), pelvic parameters (pelvic incidence (PI), sacral slope (SS), and pelvic tilt (PT)), and spinal balance parameters (spinal balance, sacropelvic balance, and spinopelvic balance) were measured...
February 9, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28182303/variable-effects-of-climate-on-forest-growth-in-relation-to-climate-extremes-disturbance-and-forest-dynamics
#12
Malcolm S Itter, Andrew O Finley, Anthony W D'Amato, Jane R Foster, John B Bradford
Changes in the frequency, duration, and severity of climate extremes are forecast to occur under global climate change. The impacts of climate extremes on forest productivity and health remain difficult to predict due to potential interactions with disturbance events and forest dynamics-changes in forest stand composition, density, size and age structure over time. Such interactions may lead to non-linear forest growth responses to climate involving thresholds and lag effects. Understanding how forest dynamics influence growth responses to climate is particularly important given stand structure and composition can be modified through management to increase forest resistance and resilience to climate change...
February 9, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28182163/which-is-preferable-for-orthostatic-hypotension-diagnosis-in-older-adults-active-standing-test-or-head-up-tilt-table-test
#13
Ali Ekrem Aydin, Pinar Soysal, Ahmet Turan Isik
BACKGROUND: Correct evaluation of orthostatic hypotension (OH) is crucial in geriatric practice, since OH is associated with mortality and morbidity. The study aimed to determine the most appropriate method for measuring blood pressure in transition from supine to upright position in order to diagnose OH in older adults. METHODS: Active standing test (AST) and head-up tilt table (HUT) test as well as comprehensive geriatric assessment (CGA), including mini-mental state examination or the cognitive state test, mini-nutritional assessment, basic and instrumental activities of daily living, and Tinetti performance-oriented mobility assessment indexes, were performed in 290 geriatric patients...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28178991/an-ethnographic-study-of-salt-use-and-humoral-concepts-in-a-latino-farm-worker-community-in-california-s-central-valley
#14
Judith C Barker, Claudia Guerra, M Judy Gonzalez-Vargas, Kristin S Hoeft
BACKGROUND: This article reports on the use of domestic or table salt for its perceived health effects and healing properties in a Latino farmworker community. It explores how contemporary salt usage beliefs can be seen to have roots in long-standing humoral theories of medicine and health. METHODS: This qualitative investigation comprised 30 in-depth individual interviews and five focus groups conducted in Spanish with Mexican and Central American immigrants in one small city in California's Central Valley (N = 61 total participants)...
February 8, 2017: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/28178773/postural-control-of-individuals-with-chronic-stroke-compared-to-healthy-participants-tug-frt-and-center-of-pressure-movement
#15
Sigal Portnoy, Shlomit Reif, Tom Mendelboim, Debbie Rand
BACKGROUND: Balance impairments are common following stroke, and may lead to loss of independent functional mobility and falls. Previous studies strived to come up with precise measures of postural control, which will provide a better prognostic power for the health status and safety of the individual. To date, the degree of difference in postural control measures between individuals with chronic stroke and healthy participants is not reported. Also there are no reported correlations between these measures and the Timed-Up-and-Go (TUG) and the Functional Reach Test (FRT)...
February 8, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28174517/a-practical-guide-to-approaching-biased-agonism-at-g-protein-coupled-receptors
#16
Jaimee Gundry, Rachel Glenn, Priya Alagesan, Sudarshan Rajagopal
Biased agonism, the ability of a receptor to differentially activate downstream signaling pathways depending on binding of a "biased" agonist compared to a "balanced" agonist, is a well-established paradigm for G protein-coupled receptor (GPCR) signaling. Biased agonists have the promise to act as smarter drugs by specifically targeting pathogenic or therapeutic signaling pathways while avoiding others that could lead to side effects. A number of biased agonists targeting a wide array of GPCRs have been described, primarily based on their signaling in pharmacological assays...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28167910/adaptive-baseline-enhances-em-based-policy-search-validation-in-a-view-based-positioning-task-of-a-smartphone-balancer
#17
Jiexin Wang, Eiji Uchibe, Kenji Doya
EM-based policy search methods estimate a lower bound of the expected return from the histories of episodes and iteratively update the policy parameters using the maximum of a lower bound of expected return, which makes gradient calculation and learning rate tuning unnecessary. Previous algorithms like Policy learning by Weighting Exploration with the Returns, Fitness Expectation Maximization, and EM-based Policy Hyperparameter Exploration implemented the mechanisms to discard useless low-return episodes either implicitly or using a fixed baseline determined by the experimenter...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/28167519/regulation-of-polyhydroxybutyrate-accumulation-in-sinorhizobium-meliloti-by-the-trans-encoded-small-rna-mmgr
#18
Antonio Lagares, Germán Ceizel Borella, Uwe Linne, Anke Becker, Claudio Valverde
Riboregulation has a major role in the fine-tuning of multiple bacterial processes. Among the RNA players, trans-encoded untranslated small RNAs (sRNAs) regulate complex metabolic networks by tuning expression from multiple target genes in response to numerous signals. In Sinorhizobium meliloti, over 400 sRNAs are expressed under different stimuli. The sRNA MmgR-standing for Makes more granules Regulator-has been of particular interest to us since its sequence and structure are highly conserved among the α-proteobacteria, and its expression is regulated by the amount and quality of the bacterium's available nitrogen source...
February 6, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28167191/effect-of-cognitive-task-on-postural-control-of-the-patients-with-chronic-ankle-instability-during-single-and-double-leg-standing
#19
Zeinab Shiravi, Saeed Talebian Moghadam, Mohammad Reza Hadian, Gholamreza Olyaei
OBJECTIVE: The aim of this study was to investigate the effect of a cognitive task on standing postural control of the injured and non-injured leg of athletes with chronic ankle instability. METHODS: Postural stability was measured by center of pressure parameters while chronic ankle instability patients (n = 8) randomly performed single and double leg standing in isolation or concurrently with a digit-backward cognitive task. RESULTS: After performing a concurrent cognitive task, anteroposterior sway significantly decreased in injured leg (P < 0...
January 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28166265/compliant-flooring-to-prevent-fall-related-injuries-in-older-adults-a-scoping-review-of-biomechanical-efficacy-clinical-effectiveness-cost-effectiveness-and-workplace-safety
#20
Chantelle C Lachance, Michal P Jurkowski, Ania C Dymarz, Stephen N Robinovitch, Fabio Feldman, Andrew C Laing, Dawn C Mackey
BACKGROUND: Compliant flooring, broadly defined as flooring systems or floor coverings with some level of shock absorbency, may reduce the incidence and severity of fall-related injuries in older adults; however, a lack of synthesized evidence may be limiting widespread uptake. METHODS: Informed by the Arksey and O'Malley framework and guided by a Research Advisory Panel of knowledge users, we conducted a scoping review to answer: what is presented about the biomechanical efficacy, clinical effectiveness, cost-effectiveness, and workplace safety associated with compliant flooring systems that aim to prevent fall-related injuries in healthcare settings? We searched academic and grey literature databases...
2017: PloS One
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