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https://www.readbyqxmd.com/read/28641241/influence-of-shoulder-kinematic-estimate-on-joint-and-muscle-mechanics-predicted-by-musculoskeletal-model
#1
Yoann Blache, Mickael Begon
Little information is available in the existing literature regarding the influence of the scapular kinematic estimate method on musculoskeletal analysis. This study aimed to assess the propagation of errors due to the method used for scapular kinematics reconstruction in the workflow of musculoskeletal modeling (joint kinematics, joint torques, muscle force and joint reaction force) in shoulder and upper-limb movements. Two participants performed functional (arm elevation and rotation), daily life (eating and reaching pants pockets) and sports movements (a simulated throwing maneuver)...
June 15, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28641199/influence-of-weight-bearing-visual-feedback-on-movement-symmetry-during-sit-to-stand-task
#2
Sumayeh Abujaber, Federico Pozzi, Joseph Zeni
BACKGROUND: Weight-bearing asymmetry is common in individuals with hip osteoarthritis and after total hip arthroplasty. Including symmetry training to the rehabilitation programs may normalize movement strategies during dynamic tasks. The purpose of this study was to evaluate the immediate influences of real-time visual feedback of weight distribution on the interlimb movement symmetry during the sit-to-stand task, before and after total hip arthroplasty, and to determine whether physical impairments affect the response to visual feedback...
June 8, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28641092/nuclear-mechanotransduction-sensing-the-force-from-within
#3
REVIEW
Avathamsa Athirasala, Nivi Hirsch, Amnon Buxboim
The cell nucleus is a hallmark of eukaryotic evolution, where gene expression is regulated and the genome is replicated and repaired. Yet, in addition to complex molecular processes, the nucleus has also evolved to serve physical tasks that utilize its optical and mechanical properties. Nuclear mechanotransduction of externally applied forces and extracellular stiffness is facilitated by the physical connectivity of the extracellular environment, the cytoskeleton and the nucleoskeletal matrix of lamins and chromatin...
June 19, 2017: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/28640798/evaluation-of-placental-and-fetal-tissue-specimens-for-zika-virus-infection-50-states-and-district-of-columbia-january-december-2016
#4
Sarah Reagan-Steiner, Regina Simeone, Elizabeth Simon, Julu Bhatnagar, Titilope Oduyebo, Rebecca Free, Amy M Denison, Demi B Rabeneck, Sascha Ellington, Emily Petersen, Joy Gary, Gillian Hale, M Kelly Keating, Roosecelis B Martines, Atis Muehlenbachs, Jana Ritter, Ellen Lee, Alexander Davidson, Erin Conners, Sarah Scotland, Kayleigh Sandhu, Andrea Bingham, Elizabeth Kassens, Lou Smith, Kirsten St George, Nina Ahmad, Mary Tanner, Suzanne Beavers, Brooke Miers, Kelley VanMaldeghem, Sumaiya Khan, Ingrid Rabe, Carolyn Gould, Dana Meaney-Delman, Margaret A Honein, Wun-Ju Shieh, Denise J Jamieson, Marc Fischer, Sherif R Zaki
Zika virus infection during pregnancy can cause congenital microcephaly and brain abnormalities (1), and detection of Zika virus RNA in clinical and tissue specimens can provide definitive laboratory evidence of recent Zika virus infection. Whereas duration of viremia is typically short, prolonged detection of Zika virus RNA in placental, fetal, and neonatal brain tissue has been reported and can provide key diagnostic information by confirming recent Zika virus infection (2). In accordance with recent guidance (3,4), CDC provides Zika virus testing of placental and fetal tissues in clinical situations where this information could add diagnostic value...
June 23, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28640620/using-complementary-nmr-data-sets-to-detect-inconsistencies-and-model-flaws-in-the-structure-determination-of-human-interleukin-4
#5
Lorna J Smith, Wilfred F van Gunsteren, Niels Hansen
The derivation of protein structure from values of observable quantities measured in NMR experiments is a rather non-trivial task due to (i) the limited number of data compared to degrees of freedom of a protein, (ii) the uncertainty inherent to the function connecting an observable quantity to molecular structure, (iii) the finite quality of biomolecular models and force fields used in structure refinement, and (iv) the conformational freedom of a protein in aqueous solution, which requires extensive conformational sampling and appropriate conformational averaging when calculating or restraining to sets of NMR data...
June 22, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28636453/testing-the-efficacy-of-existing-force-endurance-models-to-account-for-the-prevalence-of-obesity-in-the-workforce
#6
Mojdeh Pajoutan, Lora A Cavuoto, Ranjana K Mehta
This study evaluated whether the existing force-endurance relationship models are predictive of endurance time for overweight and obese individuals, and if not, provide revised models that can be applied for ergonomics practice. Data was collected from 141 participants (49 normal weight, 50 overweight, 42 obese) who each performed isometric endurance tasks of hand grip, shoulder flexion, and trunk extension at four levels of relative workload. Subject-specific fatigue rates and a general model of the force-endurance relationship were determined and compared to two fatigue models from the literature...
June 21, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28634218/high-quality-statin-trials-support-the-2013-acc-aha-cholesterol-guidelines-after-hope-3-the-multi-ethnic-study-of-atherosclerosis
#7
Martin B Mortensen, Matthew J Budoff, Dong Li, Khurram Nasir, Michael J Blaha, Veit Sandfort, Carlos J Rodriguez, Pamela Ouyang, Erling Falk
The 2013 American College of Cardiology/American Heart Association (ACC/AHA) guideline on cholesterol treatment to prevent atherosclerotic cardiovascular disease (ASCVD) has been criticized for lowering the risk thresholds for primary prevention with statin therapy. Although the ≥ 7.5% (class I) and ≥ 5% (class IIa) 10-year ASCVD risk thresholds were identified as new indications for treatment by extrapolating results obtained in randomized controlled trials (RCT) of statin therapy, results from population-based European cohorts indicate that >30% of individuals eligible for statin therapy by class I recommendations do not have RCT data supporting statin efficacy...
June 20, 2017: Circulation
https://www.readbyqxmd.com/read/28633483/an-informatics-research-agenda-to-support-patient-and-family-empowerment-and-engagement-in-care-and-recovery-during-and-after-hospitalization
#8
Sarah Collins, Patricia Dykes, David W Bates, Brittany Couture, Ronen Rozenblum, Jennifer Prey, Kristin O'Reilly, Patricia Q Bourie, Cindy Dwyer, S Ryan Greysen, Jeffery Smith, Michael Gropper, Anuj K Dalal
As part of an interdisciplinary acute care patient portal task force with members from 10 academic medical centers and professional organizations, we held a national workshop with 71 attendees representing over 30 health systems, professional organizations, and technology companies. Our consensus approach identified 7 key sociotechnical and evaluation research focus areas related to the consumption and capture of information from patients, care partners (eg, family, friends), and clinicians through portals in the acute and post-acute care settings...
June 17, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28632874/screening-for-obesity-in-children-and-adolescents-us-preventive-services-task-force-recommendation-statement
#9
David C Grossman, Kirsten Bibbins-Domingo, Susan J Curry, Michael J Barry, Karina W Davidson, Chyke A Doubeni, John W Epling, Alex R Kemper, Alex H Krist, Ann E Kurth, C Seth Landefeld, Carol M Mangione, Maureen G Phipps, Michael Silverstein, Melissa A Simon, Chien-Wen Tseng
Importance: Based on year 2000 Centers for Disease Control and Prevention growth charts, approximately 17% of children and adolescents aged 2 to 19 years in the United States have obesity, and almost 32% of children and adolescents are overweight or have obesity. Obesity in children and adolescents is associated with morbidity such as mental health and psychological issues, asthma, obstructive sleep apnea, orthopedic problems, and adverse cardiovascular and metabolic outcomes (eg, high blood pressure, abnormal lipid levels, and insulin resistance)...
June 20, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28632873/screening-for-obesity-and-intervention-for-weight-management-in-children-and-adolescents-evidence-report-and-systematic-review-for-the-us-preventive-services-task-force
#10
Elizabeth A O'Connor, Corinne V Evans, Brittany U Burda, Emily S Walsh, Michelle Eder, Paula Lozano
Importance: Obesity is common in children and adolescents in the United States, is associated with negative health effects, and increases the likelihood of obesity in adulthood. Objective: To systematically review the benefits and harms of screening and treatment for obesity and overweight in children and adolescents to inform the US Preventive Services Task Force. Data Sources: MEDLINE, PubMed, PsycINFO, Cochrane Collaboration Registry of Controlled Trials, and the Education Resources Information Center through January 22, 2016; references of relevant publications; government websites...
June 20, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28632849/putting-the-us-preventive-services-task-force-recommendation-for-childhood-obesity-screening-in-context
#11
Rachel L J Thornton, Raquel G Hernandez, Tina L Cheng
No abstract text is available yet for this article.
June 20, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28632842/practical-considerations-for-the-us-preventive-services-task-force-recommendations-on-obesity-in-children-and-adolescents
#12
Jason P Block, Emily Oken
No abstract text is available yet for this article.
June 20, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28632736/from-the-motor-cortex-to-the-movement-and-back-again
#13
Wondimu W Teka, Khaldoun C Hamade, William H Barnett, Taegyo Kim, Sergey N Markin, Ilya A Rybak, Yaroslav I Molkov
The motor cortex controls motor behaviors by generating movement-specific signals and transmitting them through spinal cord circuits and motoneurons to the muscles. Precise and well-coordinated muscle activation patterns are necessary for accurate movement execution. Therefore, the activity of cortical neurons should correlate with movement parameters. To investigate the specifics of such correlations among activities of the motor cortex, spinal cord network and muscles, we developed a model for neural control of goal-directed reaching movements that simulates the entire pathway from the motor cortex through spinal cord circuits to the muscles controlling arm movements...
2017: PloS One
https://www.readbyqxmd.com/read/28632660/clinical-experience-with-the-use-of-low-intensity-pulsed-ultrasound-lipus-in-the-treatment-of-atypical-femoral-fractures
#14
Sang Yang Lee, Takahiro Niikura, Takashi Iwakura, Tomoaki Fukui, Ryosuke Kuroda
OBJECTIVE: The aim of this study was to report the clinical results of atypical femoral fractures (AFFs) treated with low-intensity pulsed ultrasound (LIPUS). MATERIALS AND METHODS: The data on AFFs that were surgically treated in our hospital from 2010 to 2016 was retrospectively analyzed. AFF was diagnosed based on the criteria defined by the second report of an ASBMR task force. RESULTS: Seven fractures in 6 cases were included in this study...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632104/bimanual-lifting-do-fingertip-forces-work-independently-or-interactively
#15
Pan Dimitriou, Gavin Buckingham
Bimanual coordination is a commonplace activity, but the consequences of using both hands simultaneously are not well understood. The authors examined fingertip forces across 4 experiments in which participants undertook a range of bimanual tasks. They first measured fingertip forces during simultaneous lifts of 2 identical objects, noting that individuals held the objects with more force bimanually than unimanually. They then varied the mass of the objects held by each hand, noting that when both hands lifted together performance was equivalent to unimanual lifts...
March 2, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28632053/the-effect-of-a-secondary-cognitive-task-on-landing-mechanics-and-jump-performance
#16
Boyi Dai, Ross F Cook, Elizabeth A Meyer, Yvonne Sciascia, Taylour J Hinshaw, Chaoyi Wang, Qin Zhu
Anterior cruciate ligament (ACL) injuries commonly occur during jump-landing tasks when individuals' attention is simultaneously allocated to other objects and tasks. The purpose of the current study was to investigate the effect of allocation of attention imposed by a secondary cognitive task on landing mechanics and jump performance. Thirty-eight recreational athletes performed a jump-landing task in three conditions: no counting, counting backward by 1 s from a randomly given number, and counting backward by 7 s from a randomly given number...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28632050/effects-of-turf-and-cleat-footwear-on-plantar-load-distributions-in-adolescent-american-football-players-during-resisted-pushing
#17
Jeffrey B Taylor, Anh-Dung Nguyen, Janet R Griffin, Kevin R Ford
Metatarsal and midfoot injuries are common in American football. Footwear design may influence injury rates by altering plantar foot loading patterns in these regions. The purpose of this study was to determine the effect of cleat design on in-shoe plantar foot loading during a football-specific, resisted pushing task. Twenty competitive football players (age 14.7 ± 1.8 years, height 1.72 ± 0.10 m, and mass 71.8 ± 26.9 kg) completed three trials of pushing a weighted sled at maximal effort in a standard shoe (CLEAT) and artificial turf-specific shoe (TURF), with flexible in-shoe force measuring insoles...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28630806/prevalence-and-barriers-to-lung-cancer-screening-in-karachi-pakistan-a-cross-sectional-survey-of-smokers-and-physicians
#18
Aleeza Abbasi, Rabbia Siddiqi, Aatika Owais, Tooba Laeeq, Sara N Ali, Zonaira Mushahid, Syed M Ahsan, Aliya S Jatoi, Aleena Abbasi, Ifrah Butt, Ruba Ali, Maham Abbasi, Syeda Naintara N Jaffri, Mariam Jabir, Hajra Khanani, Kaneez Fatima
BACKGROUND: Early detection of lung cancer using low-dose computed tomography (LDCT) can potentially reduce morbidity and mortality. However, LDCT for lung cancer screening, especially in low income countries, has been underutilized. The objective of this study was to evaluate the prevalence and the potential personal, social, and economic barriers of lung cancer screening using LDCT. METHODS: A total sample of 156 smokers and 200 general physicians was collected during December 2016-February 2017 from community settings in Karachi, Pakistan...
May 15, 2017: Curēus
https://www.readbyqxmd.com/read/28629131/a-hybrid-scheme-for-fine-grained-search-and-access-authorization-in-fog-computing-environment
#19
Min Xiao, Jing Zhou, Xuejiao Liu, Mingda Jiang
In the fog computing environment, the encrypted sensitive data may be transferred to multiple fog nodes on the edge of a network for low latency; thus, fog nodes need to implement a search over encrypted data as a cloud server. Since the fog nodes tend to provide service for IoT applications often running on resource-constrained end devices, it is necessary to design lightweight solutions. At present, there is little research on this issue. In this paper, we propose a fine-grained owner-forced data search and access authorization scheme spanning user-fog-cloud for resource constrained end users...
June 17, 2017: Sensors
https://www.readbyqxmd.com/read/28628398/skill-level-changes-the-coordination-and-variability-of-standing-posture-and-movement-in-a-pistol-aiming-task
#20
Ji-Hyun Ko, Dong-Wook Han, Karl M Newell
The study investigated the coordination and variability of posture and pistol motion for skilled pistol shooters and novices in a pistol-aiming task. The participants stood on a force platform and held a pistol with the preferred arm to aim for accuracy to a target on 30 s trials. The results revealed that the amount of the centre of pressure (COP) and pistol motion was lower for the expert than novice group. The time-varying structure of COP as indexed by multiscale entropy (MSE) and detrended fluctuation analysis (DFA) was also lower for the expert than the novice group...
June 19, 2017: Journal of Sports Sciences
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