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https://www.readbyqxmd.com/read/28646597/a-contrast-enhanced-ultrasonographic-study-about-the-impact-of-long-term-exercise-training-on-mammary-tumor-vascularization
#1
Ana I Faustino-Rocha, Adelina Gama, Paula A Oliveira, Katrien Vanderperren, Jimmy H Saunders, Maria J Pires, Rita Ferreira, Mário Ginja
OBJECTIVES: This study aimed to evaluate the impact of long-term exercise training on the vascularization of rat mammary tumors. METHODS: Female rats were divided into 4 groups: N-methyl-N-nitrosourea (MNU) treated sedentary, MNU treated exercised, control sedentary, and control exercised. Tumor development was induced in the MNU groups by MNU administration. Exercised groups were trained for 35 weeks. Tumor vascularization was evaluated by pulsed Doppler and contrast-enhanced ultrasonography...
June 24, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28643607/diabetes-self-management-training-in-a-virtual-environment
#2
Louise Reagan, Katherine Pereira, Vanessa Jefferson, Kathryn Evans Kreider, Susan Totten, Gail D'Eramo Melkus, Constance Johnson, Allison Vorderstrasse
Diabetes self-management training (DSMT) improves diabetes health outcomes. However, low numbers of patients receive DSMT. Using virtual environments (VEs) for DSMT is an innovative approach to removing barriers for patients. The purpose of this paper is to describe the experience of health professionals and diabetes educators establishing and teaching DSMT in a VE, Diabetes LIVE© (Learning in Virtual Environments), and the implications for future use of VEs in DSMT. It was found that providing DSMT in a VE preserves real-time interaction between patients and educators...
June 1, 2017: Diabetes Educator
https://www.readbyqxmd.com/read/28642717/the-lactate-minimum-test-concept-methodological-aspects-and-insights-for-future-investigations-in-human-and-animal-models
#3
REVIEW
Leonardo H D Messias, Claudio A Gobatto, Wladimir R Beck, Fúlvia B Manchado-Gobatto
In 1993, Uwe Tegtbur proposed a useful physiological protocol named the lactate minimum test (LMT). This test consists of three distinct phases. Firstly, subjects must perform high intensity efforts to induce hyperlactatemia (phase 1). Subsequently, 8 min of recovery are allowed for transposition of lactate from myocytes (for instance) to the bloodstream (phase 2). Right after the recovery, subjects are submitted to an incremental test until exhaustion (phase 3). The blood lactate concentration is expected to fall during the first stages of the incremental test and as the intensity increases in subsequent stages, to rise again forming a "U" shaped blood lactate kinetic...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28642711/weekly-time-course-of-neuro-muscular-adaptation-to-intensive-strength-training
#4
Niklas Brown, Dieter Bubeck, Daniel F B Haeufle, Johannes Weickenmeier, Ellen Kuhl, Wilfried Alt, Syn Schmitt
Detailed description of the time course of muscular adaptation is rarely found in literature. Thus, models of muscular adaptation are difficult to validate since no detailed data of adaptation are available. In this article, as an initial step toward a detailed description and analysis of muscular adaptation, we provide a case report of 8 weeks of intense strength training with two active, male participants. Muscular adaptations were analyzed on a morphological level with MRI scans of the right quadriceps muscle and the calculation of muscle volume, on a voluntary strength level by isometric voluntary contractions with doublet stimulation (interpolated twitch technique) and on a non-voluntary level by resting twitch torques...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28641261/robust-web-image-annotation-via-exploring-multi-facet-and-structural-knowledge
#5
Mengqiu Hu, Yang Yang, Fumin Shen, Luming Zhang, Heng Tao Shen, Xuelong Li
Driven by the rapid development of Internet and digital technologies, we have witnessed the explosive growth of Web images in recent years. Seeing that labels can reflect the semantic contents of the images, automatic image annotation, which can further facilitate the procedure of image semantic indexing, retrieval and other image management tasks, has become one of the most crucial research directions in multimedia. Most of the existing annotation methods heavily rely on well-labeled training data (expensive to collect) and/or single view of visual features (insufficient representative power)...
June 19, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28640758/consecutive-ultra-short-term-heart-rate-variability-to-track-dynamic-changes-in-autonomic-nervous-system-during-and-after-exercise
#6
Xiang Chen, Ruijie Yao, Gezhen Yin, Jin Li
OBJECTIVE: Quantitative measurement of the dynamic changes in autonomic nervous system (ANS) during and after exercise has great significance in clinical, sports training and other fields. A consecutive ultra-short-term (30 s, UST) heart rate variability (HRV) method was proposed to track the exercise-induced autonomic control of heart rate (HR). APPROACH: Twenty-three healthy young men participated in the study. The first four stages of the Modified Bruce Protocol (S0-S3) were performed...
June 22, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28639445/periodized-training-archive-better-autonomic-modulation-and-aerobic-performance-than-non-periodized-training
#7
Vicente J Clemente-Suarez
BACKGROUND: The aim of the present research was to analyze autonomic response and aerobic performance after performing three different workloads training distributions. METHODS: Thirty athletes (38.7±9.8 years. 174.7±6.5 cm. 72.0±9.8 kg) were randomly divided in 3 groups of 10 participants each one to perform 3 different 4-week training programs: PRO group: increasing the aerobic training intensity during the 4-weeks; UNI group: performing a uniform aerobic intensity every week; and FRE group performing a free training...
June 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28639441/effect-of-periodized-high-intensity-interval-training-hiit-on-body-composition-and-attitudes-towards-hunger-in-active-men-and-women
#8
Todd A Astorino, Brendyn Heath, Jason Bandong, Gina M Ordille, Ramon Contreras, Matthew Montell, Matthew M Schubert
BACKGROUND: High intensity interval training (HIIT) increases maximal oxygen uptake similar to aerobic exercise. However, changes in body composition are equivocal in response to HIIT. AIM: We examined changes in body composition and dietary restraint in response to 20 sessions of HIIT varying in structure. METHODS: Thirty nine active men and women (age and VO2max = 22.5 ± 4.4 yr and 40.1 ± 5.6 mL/kg/min) were randomized to one of three periodized HIIT regimes performed on a cycle ergometer...
June 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28636505/the-effect-of-aerobic-interval-training-and-continuous-training-on-exercise-capacity-and-its-determinants
#9
Nele Pattyn, Paul J Beckers, Véronique A Cornelissen, Ellen Coeckelberghs, Catherine De Maeyer, Geert Frederix, Kaatje Goetschalckx, Nadine Possemiers, Dirk Schepers, Emeline M Van Craenenbroeck, Kurt Wuyts, Viviane M Conraads, Luc Vanhees
Objective We aimed to investigate (1) the effects of aerobic interval training (AIT) and aerobic continuous training (ACT) on (sub)maximal exercise measures and its determinants including endothelial function, muscle strength and cardiac autonomic function, and (2) the relationship between exercise capacity and these determinants. Methods Two-hundred coronary artery disease (CAD) patients (58.4 ± 9.1 years) were randomized to AIT or ACT for 12 weeks. All patients performed a cardiopulmonary exercise test and endothelial function measurements before and after the intervention; a subpopulation underwent muscle strength and heart rate variability (HRV) assessments...
March 21, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28636482/impact-of-freeway-weaving-segment-design-on-light-duty-vehicle-exhaust-emissions
#10
Qing Li, Fengxiang Qiao, Lei Yu, Shuyan Chen, Tiezhu Li
In United States, 26% of greenhouse gas emissions is emitted from the transportation sector, which meanwhile accompanies with enormous toxic emissions to humans, such as CO, NOx, and HC, approximately 2.5% and 2.44% of a total exhaust emission for a petrol and diesel engine, respectively. These exhaust emissions are typically subject to vehicles' intermittent operations, such as hard acceleration and hard braking. In practice, drivers are inclined to operate intermittently while driving through a weaving segment, due to complex vehicle maneuvering for weaving...
June 21, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28633438/sandpuma-ensemble-predictions-of-nonribosomal-peptide-chemistry-reveals-biosynthetic-diversity-across-actinobacteria
#11
Marc G Chevrette, Fabian Aicheler, Oliver Kohlbacher, Cameron R Currie, Marnix H Medema
Summary: Nonribosomally synthesized peptides (NRPs) are natural products with widespread applications in medicine and biotechnology. Many algorithms have been developed to predict the substrate specificities of nonribosomal peptide synthetase adenylation (A) domains from DNA sequences, which enables prioritization and dereplication, and integration with other data types in discovery efforts. However, insufficient training data and a lack of clarity regarding prediction quality have impeded optimal use...
June 19, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28630698/physical-activity-in-the-classroom-to-prevent-childhood-obesity-a-pilot-study-in-santiago-chile
#12
Francisco Mardones, Pilar Arnaiz, Johana Soto-Sánchez, Juana Saavedra, Angélica Domínguez, Jaime Rozowski, Laura Iriarte, Jennifer Cantwell Wood
This paper describes a 4-month pilot study that tested the suitability of a physical activity intervention for first graders (children aged 6 and 7 years) in a public school in Santiago, Chile. Teachers were trained to deliver the programme in the classroom during the school day. Teachers were surveyed to determine if this intervention fit within their curriculum and classroom routines and they reported in a focus group that it was suitable for them. All children actively participated in the programme and positive changes in their attitudes towards physical activity were observed by their teachers...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28630575/acute-and-post-exercise-physiological-responses-to-high-intensity-interval-training-in-endurance-and-sprint-athletes
#13
Lukas Cipryan, Gerhard Tschakert, Peter Hofmann
The purpose of the presented study was to compare acute and post-exercise differences in cardiorespiratory, metabolic, cardiac autonomic, inflammatory and muscle damage responses to high-intensity interval exercise (HIIT) between endurance and sprint athletes. The study group consisted of sixteen highly-trained males (age 22.1 ± 2.5 years) participating in endurance (n = 8) or sprint (n = 8) sporting events. All the participants underwent three exercise sessions: short HIIT (work interval duration 30s), long HIIT (3min) and constant load exercise (CE)...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28630468/neurofeedback-learning-modifies-the-incidence-rate-of-alpha-spindles-but-not-their-duration-and-amplitude
#14
Alexei Ossadtchi, Tatiana Shamaeva, Elizaveta Okorokova, Victoria Moiseeva, Mikhail A Lebedev
Although the first experiments on alpha-neurofeedback date back nearly six decades ago, when Joseph Kamiya reported successful operant conditioning of alpha-rhythm in humans, the effectiveness of this paradigm in various experimental and clinical settings is still a matter of debate. Here, we investigated the changes in EEG patterns during a continuously administered neurofeedback of P4 alpha activity. Two days of neurofeedback training were sufficient for a significant increase in the alpha power to occur...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629390/results-of-the-first-interim-analysis-of-the-rapper-ii-trial-in-patients-with-spinal-cord-injury-ambulation-and-functional-exercise-programs-in-the-rex-powered-walking-aid
#15
Nick Birch, Jon Graham, Tom Priestley, Chris Heywood, Mohamed Sakel, Angela Gall, Andrew Nunn, Nada Signal
BACKGROUND: The RAPPER II study investigates the feasibility, safety and acceptability of using the REX self-stabilising robotic exoskeleton in people with spinal cord injury (SCI) who are obligatory wheelchair users. Feasibility is assessed by the completion of transfer into the REX device, competency in achieving autonomous control and completion of upper body exercise in an upright position in the REX device. Safety is measured by the occurrence of serious adverse events. Device acceptability is assessed with a user questionnaire...
June 19, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28628163/-quantitative-structure-activity-relationship-model-for-prediction-of-cardiotoxicity-of-chemical-components-in-traditional-chinese-medicines
#16
(no author information available yet)
OBJECTIVE: Some quantitative structure-activity relationship (QSAR) models have been developed to predict cardiac toxicity of drugs, which have limited predictive power due to based on hERG channel inhibition. The objective of this study was try to develop a QSAR model based on all kinds of cardiac adverse effects, and to predict the potential cardiotoxicity of chemical components in traditional Chinese medicines (TCM). METHODS: In this study, the compounds data of all kinds of cardiac adverse reactions were selected as the training set...
June 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28627505/monitoring-alert-and-drowsy-states-by-modeling-eeg-source-nonstationarity
#17
Sheng-Hsiou Hsu, Tzyy-Ping Jung
As a human brain performs various cognitive functions within ever-changing environments, states of the brain characterized by recorded brain activities such as electroencephalogram (EEG) are inevitably nonstationary. The challenges of analyzing the nonstationary EEG signals include finding neurocognitive sources that underlie different brain states and using EEG data to quantitatively assess the state changes. Approach. This study hypothesizes that brain activities under different states, e.g. levels of alertness, can be modeled as distinct compositions of statistically independent sources using independent component analysis (ICA)...
June 19, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28626126/conduct-of-occupational-health-during-major-disasters-a-comparison-of-literature-on-occupational-health-issues-in-the-world-trade-center-terrorist-attack-and-the-fukushima-nuclear-power-plant-accident
#18
Hiroyuki Toyoda, Koji Mori
Workers who respond to large-scale disasters can be exposed to health hazards that do not exist in routine work. It is assumed that learning from past cases is effective for preparing for and responding to such problems, but published information is still insufficient. Accordingly, we conducted a literature review about the health issues and occupational health activities at the World Trade Center (WTC) terrorist attack and at the Fukushima Nuclear Power Plant accident to investigate how occupational health activities during disasters should be conducted...
2017: Journal of UOEH
https://www.readbyqxmd.com/read/28624688/relation-between-peak-power-output-in-sprint-cycling-and-maximum-voluntary-isometric-torque-production
#19
Mehdi Kordi, Stuart Goodall, Paul Barratt, Nicola Rowley, Jonathan Leeder, Glyn Howatson
From a cycling paradigm, little has been done to understand the relationships between maximal isometric strength of different single joint lower body muscle groups and their relation with, and ability to predict PPO and how they compare to an isometric cycling specific task. The aim of this study was to establish relationships between maximal voluntary torque production from isometric single-joint and cycling specific tasks and assess their ability to predict PPO. Twenty male trained cyclists participated in this study...
June 10, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28623922/use-of-simulation-based-medical-training-in-swiss-pediatric-hospitals-a-national-survey
#20
Martin Stocker, Kathryn Laine, Francis Ulmer
BACKGROUND: Simulation-based medical training (SBMT) is a powerful tool for continuing medical education. In contrast to the Anglo-Saxon medical education community, up until recently, SBMT was scarce in continental Europe's pediatric health care education: In 2009, only 3 Swiss pediatric health care institutions used SBMT. The Swiss catalogue of objectives in Pediatrics does not acknowledge SBMT. The aim of this survey is to describe and analyze the current state of SBMT in Swiss pediatric hospitals and health care departments...
June 17, 2017: BMC Medical Education
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