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https://www.readbyqxmd.com/read/28938308/sensor-based-physiologic-control-strategy-for-biventricular-support-with-rotary-blood-pumps
#1
Yu Wang, Steven C Koenig, Zhongjun Wu, Mark S Slaughter, Guruprasad A Giridharan
Rotary biventricular assist devices (BiVAD) are becoming a clinically accepted treatment option for end-stage biventricular failure. To improve BiVAD efficacy and safety, we propose a control algorithm to achieve the clinical objectives of maintaining left-right-sided balance, restoring physiologic flows, and preventing ventricular suction. The control algorithm consists of two proportional-integral (PI) controllers for left and right ventricular assist devices (LVAD and RVAD) to maintain differential pump pressure across LVAD (ΔPL) and RVAD (ΔPR) to provide left-right balance and physiologic flow...
September 21, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28937577/trajectories-of-musculoskeletal-pain-from-adolescence-to-middle-age-the-role-of-early-depressive-symptoms-a-27-year-follow-up-of-the-northern-swedish-cohort
#2
Päivi Leino-Arjas, Kristiina Rajaleid, Gashaw Mekuria, Tapio Nummi, Pekka Virtanen, Anne Hammarström
Depression and musculoskeletal pain are associated, but long-term follow-up studies are rare. We aimed to examine the relationship of early depressive symptoms with developmental patterns of musculoskeletal pain from adolescence to middle age. Adolescents ending compulsory school (age 16) in Luleå, Northern Sweden, in 1981 (n = 1083) were studied and followed up in 1986, 1995, and 2008 (age 43) for musculoskeletal pain. Attrition was very low. Indicators for any and severe pain were based on pain in the neck-shoulders, low back, and the extremities...
September 19, 2017: Pain
https://www.readbyqxmd.com/read/28935825/effect-of-tapering-after-a-period-of-high-volume-sprint-interval-training-on-running-performance-and-muscular-adaptations-in-moderately-trained-runners
#3
Casper Skovgaard, Nicki Winfield Almquist, Thue Kvorning, Peter Møller Christensen, Jens Bangsbo
The effect of tapering following a period of high-volume sprint interval training (SIT) and a basic volume of aerobic training on performance and muscle adaptations in moderately trained runners was examined. Eleven (8 males, 3 females) runners (maximum oxygen uptake (VO2-max): 56.8±2.9 mL·min(-1)·kg(-1); mean±SD) conducted high-volume SIT (HV; 20 SIT sessions; 8-12 x 30-s all-out) for 40 days followed by 18 days of tapering (TAP; 4 SIT sessions; 4 x 30-s all-out). Before and after HV as well as midway through and at the end of TAP, the subjects completed a 10-km running test and a repeated running test at 90% of vVO2-max to exhaustion (RRT)...
September 21, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28931548/fluid-replacement-modulates-oxidative-stress-but-not-nitric-oxide-mediated-cutaneous-vasodilation-and-sweating-during-prolonged-exercise-in-the-heat
#4
Brendan D McNeely, Robert D Meade, Naoto Fujii, Andrew J E Seely, Ronald J Sigal, Glen P Kenny
The roles of nitric oxide synthase (NOS), reactive oxygen species (ROS) and angiotensin II type 1 receptor (AT1R) activation in regulating cutaneous vasodilation and sweating during prolonged (≥60 min) exercise are currently unclear. Moreover, it remains to be determined whether fluid replacement (FR) modulates the above thermoeffector responses. To investigate, eleven young men completed 90-min of continuous moderate intensity (46% of VO2peak) cycling performed at a fixed rate of metabolic heat production of 600 W (No-FR condition)...
September 20, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28931547/the-plateau-in-the-nirs-derived-hhb-signal-near-the-end-of-a-ramp-incremental-test-does-not-indicate-the-upper-limit-of-o2-extraction-in-the-vastus-lateralis
#5
Erin Calaine Inglis, Danilo Iannetta, Juan M Murias
This study aimed to examine, at the level of the active muscles, whether the plateau in oxygen (O2) extraction normally observed near the end of a ramp incremental (RI) exercise test to exhaustion, is caused by the achievement of an upper limit in O2 extraction. 11 healthy men (27.3 ± 3.0 years; 81.6 ± 8.1 kg; 183.9 ± 6.3 cm) performed a RI cycling test to exhaustion. O2 extraction of the vastus lateralis (VL) was measured continuously throughout the test using the near-infrared spectroscopy (NIRS)-derived deoxygenated hemoglobin [HHb] signal...
September 20, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28929478/defining-a-risk-informed-framework-for-whole-of-government-lessons-learned-a-canadian-perspective
#6
Shaye K Friesen, Shelley Kelsey, J A Jim Legere
Lessons learned play an important role in emergency management (EM) and organizational agility. Virtually all aspects of EM can derive benefit from a lessons learned program. From major security events to exercises, exploiting and applying lessons learned and "best practices" is critical to organizational resilience and adaptiveness. A robust lessons learned process and methodology provides an evidence base with which to inform decisions, guide plans, strengthen mitigation strategies, and assist in developing tools for operations...
July 2017: Journal of Emergency Management: JEM
https://www.readbyqxmd.com/read/28928174/exercise-for-patients-with-major-depression-a-systematic-review-with-meta-analysis-and-trial-sequential-analysis
#7
Jesper Krogh, Carsten Hjorthøj, Helene Speyer, Christian Gluud, Merete Nordentoft
OBJECTIVES: To assess the benefits and harms of exercise in patients with depression. DESIGN: Systematic review DATA SOURCES: Bibliographical databases were searched until 20 June 2017. ELIGIBILITY CRITERIA AND OUTCOMES: Eligible trials were randomised clinical trials assessing the effect of exercise in participants diagnosed with depression. Primary outcomes were depression severity, lack of remission and serious adverse events (eg, suicide) assessed at the end of the intervention...
September 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28927667/development-and-validation-of-a-tool-to-evaluate-the-evolution-of-clinical-reasoning-in-trauma-using-virtual-patients
#8
David Fleiszer, Michael L Hoover, Nancy Posel, Tarek Razek, Simon Bergman
CONTEXT: Undergraduate medical students at a large academic trauma center are required to manage a series of online virtual trauma patients as a mandatory exercise during their surgical rotation. PURPOSE: Clinical reasoning during undergraduate medical education can be difficult to assess. The purpose of the study was to determine whether we could use components of the students' virtual patient management to measure changes in their clinical reasoning over the course of the clerkship year...
September 16, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28926466/barriers-impeding-the-use-of-non-pharmacological-non-surgical-care-in-hip-and-knee-osteoarthritis-the-views-of-general-practitioners-physical-therapists-and-medical-specialists
#9
Ellen M H Selten, Johanna E Vriezekolk, Marc W Nijhof, Henk J Schers, Roelien G van der Meulen-Dilling, Willemijn H van der Laan, Rinie Geenen, Cornelia H M van den Ende
BACKGROUND: Non-pharmacological, non-surgical treatment modalities are underused in the management of knee and hip osteoarthritis (OA). One possible explanation for this could be healthcare providers' opinions about these treatment modalities. The objective of this qualitative study was to identify healthcare providers' views on non-pharmacological, non-surgical care for OA. METHODS: Semi-structured in-depth interviews with 24 healthcare providers (rheumatologists, orthopedic surgeons, physical therapists and general practitioners) were held...
September 19, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28924565/nirs-based-cerebrovascular-regulation-assessment-exercise-and-cerebrovascular-reactivity
#10
Stephanie Miller, Kunal Mitra
Alterations to cerebral blood flow (CBF) have been implicated in diverse neurological conditions. Near-infrared spectroscopy (NIRS)-measured regional cerebral tissue oxygen saturation ([Formula: see text]) provides an estimate of oxygenation of interrogated cerebral volume useful in identifying variations in oxygen supply to cerebral tissue and in monitoring cerebrovascular function. [Formula: see text]-inhalation-based hypercapnic breathing challenges were used to simulate CBF dysregulation, utilizing NIRS to monitor the CBF autoregulatory response...
October 2017: Neurophotonics
https://www.readbyqxmd.com/read/28919728/chronic-obstructive-pulmonary-disease-with-mild-airflow-limitation-current-knowledge-and-proposal-for-future-research-a-consensus-document-from-six-scientific-societies
#11
REVIEW
Andrea Rossi, Bojana Butorac-Petanjek, Marco Chilosi, Borja G Cosío, Matjaz Flezar, Nikolaos Koulouris, José Marin, Neven Miculinic, Guido Polese, Miroslav Samaržija, Sabina Skrgat, Theodoros Vassilakopoulos, Andrea Vukić-Dugac, Spyridon Zakynthinos, Marc Miravitlles
Chronic obstructive pulmonary disease (COPD) is a leading cause of mortality and morbidity worldwide, with high and growing prevalence. Its underdiagnosis and hence under-treatment is a general feature across all countries. This is particularly true for the mild or early stages of the disease, when symptoms do not yet interfere with daily living activities and both patients and doctors are likely to underestimate the presence of the disease. A diagnosis of COPD requires spirometry in subjects with a history of exposure to known risk factors and symptoms...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28919591/the-establishment-and-operation-of-longjing-medical-college-the-history-of-longjing-medical-college-as-frontier-history-focusing-on-its-disconnection-and-continuity
#12
Mira Moon, Young-Jeon Shin
Longjing Medial College, established in Longjing, Yanbian, China on September 12, 1945, existed for about 1 year and 6 months until it was renamed as the Medical Department of Dongbei Junzheng Daxue Jilin Fenxiao in April 1947. However, there are only few records and studies on Longjing Medical College in Yanbian as well as in Korea. In order to fill the gap, this study attempted to restore the history of Longjing Medical College built in Yanbian, China immediately after the liberation. In particular, it analyzed how and why the Longjing Medical College was founded and operated, and which relations the college had with the post-war medical educational institutions, focusing on the 'disconnection' and 'continuity' in the historical sense...
August 2017: Ŭi Sahak
https://www.readbyqxmd.com/read/28917367/perceptions-of-hatha-yoga-amongst-persistently-depressed-individuals-enrolled-in-a-trial-of-yoga-for-depression
#13
Lisa A Uebelacker, Morganne Kraines, Monica K Broughton, Geoffrey Tremont, L Tom Gillette, Gary Epstein-Lubow, Ana M Abrantes, Cynthia Battle, Ivan W Miller
OBJECTIVES: To understand depressed individuals' experiences in a 10-week hatha yoga program. DESIGN: In a randomized controlled trial, participants were assigned to either 10 weeks of hatha yoga classes or a health education control group. This report includes responses from participants in yoga classes. At the start of classes, average depression symptom severity level was moderate. MAIN OUTCOME MEASURES: After 10 weeks of yoga classes, we asked participants (n=50) to provide written responses to open-ended questions about what they liked about classes, what they did not like or did not find helpful, and what they learned...
October 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28912128/aging-modifies-the-effect-of-cardiac-output-on-middle-cerebral-artery-blood-flow-velocity
#14
Anne-Sophie G T Bronzwaer, Jasper Verbree, Wim J Stok, Mat J A P Daemen, Mark A van Buchem, Matthias J P van Osch, Johannes J van Lieshout
An association between cerebral blood flow (CBF) and cardiac output (CO) has been established in young healthy subjects. As of yet it is unclear how this association evolves over the life span. To that purpose, we continuously recorded mean arterial pressure (MAP; finger plethysmography), CO (pulse contour; CO-trek), mean blood flow velocity in the middle cerebral artery (MCAV; transcranial Doppler ultrasonography), and end-tidal CO2 partial pressure (PetCO2) in healthy young (19-27 years), middle-aged (51-61 years), and elderly subjects (70-79 years)...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28910192/subjective-life-expectancy-among-college-students
#15
Alyssa E Rodemann, Danielle Arigo
Establishing healthy habits in college is important for long-term health. Despite existing health promotion efforts, many college students fail to meet recommendations for behaviors such as healthy eating and exercise, which may be due to low perceived risk for health problems. The goals of this study were to examine: (1) the accuracy of life expectancy predictions, (2) potential individual differences in accuracy (i.e., gender and conscientiousness), and (3) potential change in accuracy after inducing awareness of current health behaviors...
September 14, 2017: Behavioral Medicine
https://www.readbyqxmd.com/read/28903544/the-process-defines-the-product-what-really-matters-in-biosimilar-design-and-production
#16
Arnold G Vulto, Orlando A Jaquez
Biologic drugs are highly complex molecules produced by living cells through a multistep manufacturing process. The key characteristics of these molecules, known as critical quality attributes (CQAs), can vary based on post-translational modifications that occur in the cellular environment or during the manufacturing process. The extent of the variation in each of the CQAs must be characterized for the originator molecule and systematically matched as closely as possible by the biosimilar developer to ensure bio-similarity...
August 1, 2017: Rheumatology
https://www.readbyqxmd.com/read/28902623/chronic-endurance-exercise-antagonizes-the-cardiac-ucp2-and-ucp3-protein-up-regulation-induced-by-nandrolone-decanoate
#17
Gholamreza Bayat, Mohammad Javan, Azadeh Khalili, Fatemeh Safari, Saeed Shokri, Sohrab Hajizadeh
BACKGROUND: Several lines of evidence revealed that chronic treatment of anabolic androgenic steroids (AASs) is accompanied with some cardiovascular side effects and in addition they also negatively mask the beneficial effects of exercise training on cardiac performance. METHODS: The present study examined whether the nandrolone decanoate (ND)-induced cardiac effects were mediated by changing the cardiac uncoupling protein 2 (UCP2) and 3 (UCP3) expression. Five groups of male wistar-albino rats including sedentary control (SC), sedentary vehicle (SV), sedentary nandrolone decanoate (SND), exercise control (EC), and exercise nandrolone decanoate (END) were used...
September 13, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28902126/work-rate-during-self-paced-exercise-is-not-mediated-by-the-rate-of-heat-storage
#18
Brian J Friesen, Julien D Périard, Martin P Poirier, Martin Lauzon, Denis P Blondin, Francois Haman, Glen P Kenny
PURPOSE: To date, there have been mixed findings on whether greater anticipatory reductions in self-paced exercise intensity in the heat are mediated by early differences in rate of body heat storage. The disparity may be due to an inability to accurately measure minute-to-minute changes in whole-body heat loss. Thus, we evaluated whether early differences in rate of heat storage can mediate exercise intensity during self-paced cycling at a fixed rate of perceived exertion (RPE of 16; hard-to-very-hard work effort) in COOL (15°C), NORMAL (25°C) and HOT (35°C) ambient conditions...
September 8, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28899341/development-of-a-home-based-training-program-for-post-ward-geriatric-rehabilitation-patients-with-cognitive-impairment-study-protocol-of-a-randomized-controlled-trail
#19
Martin Bongartz, Rainer Kiss, Phoebe Ullrich, Tobias Eckert, Jürgen Bauer, Klaus Hauer
BACKGROUND: Geriatric patients with cognitive impairment (CI) show an increased risk for a negative rehabilitation outcome and reduced functional recovery following inpatient rehabilitation. Despite this obvious demand, evidence-based training programs at the transition from rehabilitation to the home environments are lacking. The aim of this study is to evaluate the efficacy of a feasible and cost-effective home-based training program to improve motor performance and to promote physical activity, specifically-tailored for post-ward geriatric patients with CI...
September 12, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28898708/cue-exposure-therapy-reduces-overeating-of-exposed-and-non-exposed-foods-in-obese-adolescents
#20
Ghislaine Schyns, Anne Roefs, Fren T Y Smulders, Anita Jansen
BACKGROUND AND OBJECTIVES: This study tested whether two sessions of food cue exposure therapy reduced eating in the absence of hunger (EAH), specified for exposed and non-exposed food, in overweight and obese adolescents, and whether habituation of food cue reactivity and reduced CS-US expectancies predicted a decrease in EAH. METHODS: 41 overweight adolescents (aged 12-18 years) were randomly assigned to a cue exposure intervention or a lifestyle intervention (control condition)...
September 5, 2017: Journal of Behavior Therapy and Experimental Psychiatry
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