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https://www.readbyqxmd.com/read/28922681/exercise-training-protects-cardiomyocytes-from-deleterious-effects-of-palmitate
#1
Marcia Netto Magalhães Alves, Danilo Roman-Campos, Amanda B Parreira, Pedro W M Almeida, Jader Santos Cruz, Silvia Guatimosim, Marco Fabricio Dias-Peixoto
We investigated the effects of palmitate, a high saturated fat, on Ca(2+), action potential and reactive oxygen species dynamics in cardiomyocytes from untrained and trained mice. Male mice were subjected to moderate intensity exercise training on a treadmill. Cardiomyocytes of untrained and trained mice were isolated, treated for 30 min with palmitate and intracellular calcium transient and action potential duration were recorded. Additionally, we assessed reactive oxygen species generation. Treatment of cardiomyocytes from untrained mice with palmitate induced a significant decrease in Ca(2+) transient magnitude by 34%...
September 18, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28921743/exercise-training-dose-differentially-alters-muscle-and-heart-capillary-density-and-metabolic-functions-in-an-obese-rat-with-metabolic-syndrome
#2
Marcus Vinicius Machado, Aline Bomfim Vieira, Fabiana Gomes da Conceição, Alessandro Rodrigues Nascimento, Antonio Claudio Lucas da Nóbrega, Eduardo Tibirica
We evaluated the effect of frequency, duration and intensity of exercise training on metabolic parameters and structural capillary density in obese rats with metabolic syndrome (MS). Wistar-Kyoto rats were fed a either standard commercial diet (CON) or high-fat diet (HFD). Animals that received the HFD were randomly separated into either a sedentary (SED) group or 8 different exercise groups that varied by the frequency, duration and intensity of training. After 12 weeks of aerobic exercise training, body composition, aerobic capacity, hemodynamic variables, metabolic parameters and capillary density in the heart and skeletal muscle were evaluated...
September 17, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28919842/international-society-of-sports-nutrition-position-stand-nutrient-timing
#3
REVIEW
Chad M Kerksick, Shawn Arent, Brad J Schoenfeld, Jeffrey R Stout, Bill Campbell, Colin D Wilborn, Lem Taylor, Doug Kalman, Abbie E Smith-Ryan, Richard B Kreider, Darryn Willoughby, Paul J Arciero, Trisha A VanDusseldorp, Michael J Ormsbee, Robert Wildman, Mike Greenwood, Tim N Ziegenfuss, Alan A Aragon, Jose Antonio
The International Society of Sports Nutrition (ISSN) provides an objective and critical review regarding the timing of macronutrients in reference to healthy, exercising adults and in particular highly trained individuals on exercise performance and body composition. The following points summarize the position of the ISSN:Nutrient timing incorporates the use of methodical planning and eating of whole foods, fortified foods and dietary supplements. The timing of energy intake and the ratio of certain ingested macronutrients may enhance recovery and tissue repair, augment muscle protein synthesis (MPS), and improve mood states following high-volume or intense exercise...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28918412/prediction-of-early-unplanned-intensive-care-unit-readmission-in-a-uk-tertiary-care-hospital-a-cross-sectional-machine-learning-approach
#4
Thomas Desautels, Ritankar Das, Jacob Calvert, Monica Trivedi, Charlotte Summers, David J Wales, Ari Ercole
OBJECTIVES: Unplanned readmissions to the intensive care unit (ICU) are highly undesirable, increasing variance in care, making resource planning difficult and potentially increasing length of stay and mortality in some settings. Identifying patients who are likely to suffer unplanned ICU readmission could reduce the frequency of this adverse event. SETTING: A single academic, tertiary care hospital in the UK. PARTICIPANTS: A set of 3326 ICU episodes collected between October 2014 and August 2016...
September 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/28912129/the-efficacy-of-unsupervised-home-based-exercise-regimens-in-comparison-to-supervised-laboratory-based-exercise-training-upon-cardio-respiratory-health-facets
#5
James Blackwell, Philip J Atherton, Kenneth Smith, Brett Doleman, John P Williams, Jonathan N Lund, Bethan E Phillips
Supervised high-intensity interval training (HIIT) can rapidly improve cardiorespiratory fitness (CRF). However, the effectiveness of time-efficient unsupervised home-based interventions is unknown. Eighteen volunteers completed either: laboratory-HIIT (L-HIIT); home-HIIT (H-HIIT) or home-isometric hand-grip training (H-IHGT). CRF improved significantly in L-HIIT and H-HIIT groups, with blood pressure improvements in the H-IHGT group only. H-HIIT offers a practical, time-efficient exercise mode to improve CRF, away from the laboratory environment...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28911936/exercise-training-in-patients-with-pulmonary-and-systemic-hypertension-a-unique-therapy-for-two-different-diseases
#6
REVIEW
Massimo Leggio, Augusto Fusco, Giorgio Limongelli, Luca Sgorbini
Pulmonary hypertension is a potentially life-threatening condition. Given its evolving definition, the incidence and prevalence of the disease is difficult to define, but registries suggest an increased global awareness. The management of patients with pulmonary arterial hypertension is highly specialised and requires multi-disciplinary input from a range of healthcare professionals, including cardiologists, respiratory physicians, rheumatologists, rehabilitation physicians and cardio-pulmonary physiotherapists...
September 11, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28910757/learning-building-extraction-in-aerial-scenes-with-convolutional-networks
#7
Jiangye Yuan
Extracting buildings from aerial scene images is an important task with many applications. However, this task is highly difficult to automate due to extremely large variations of building appearances, and still heavily relies on manual work. To attack this problem, we design a deep convolutional network with a simple structure that integrates activation from multiple layers for pixel-wise prediction, and introduce the signed distance function of building boundaries as the output representation, which has an enhanced representation power...
September 11, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28910548/time-of-day-effects-of-exposure-to-solar-radiation-on-thermoregulation-during-outdoor-exercise-in-the-heat
#8
Hidenori Otani, Takayuki Goto, Heita Goto, Minayuki Shirato
High solar radiation has been recognised as a contributing factor to exertional heat-related illness in individuals exercising outdoors in the heat. Although solar radiation intensity has been known to have similar time-of-day variation as body temperature, the relationship between fluctuations in solar radiation associated with diurnal change in the angle of sunlight and thermoregulatory responses in individuals exercising outdoors in a hot environment remains largely unknown. The present study therefore investigated the time-of-day effects of variations in solar radiation associated with changing solar elevation angle on thermoregulatory responses during moderate-intensity outdoor exercise in the heat of summer...
September 14, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28910365/acute-effects-of-strength-exercises-and-effects-of-regular-strength-training-on-cell-free-dna-concentrations-in-blood-plasma
#9
Suzan Tug, Anna-Katharina Tross, Patrick Hegen, Elmo Wanja Immanuel Neuberger, Susanne Helmig, Wolfgang Schöllhorn, Perikles Simon
Creatine kinase (CK) is a marker for muscle cell damage with limited potential as marker for training load in strength training. Recent exercise studies identified cell free DNA (cfDNA) as a marker for aseptic inflammation and cell damage. Here we overserved in a pilot study the acute effects during strength exercise and chronic effects of regular strength training on cfDNA concentrations over a period of four weeks in three training groups applying conservation training (CT) at 60% of the 1 repetition maximum, high intensity-low repetition training (HT) at 90% of the 1 repetition maximum and differential training (DT) at 60% of the 1 repetition maximum...
2017: PloS One
https://www.readbyqxmd.com/read/28906125/imaging-of-rare-appendicular-non-acral-soft-tissue-chondromas-in-adults-with-histopathologic-correlation
#10
Mohamed Ragab Nouh, Hanan Abd El-Aziz Amr, Rola H Ali
Background Soft-tissue chondroma (STC) is a rare benign soft tissue tumor that arises primarily in acral extra-skeletal locations. Occasionally, STCs may arise in more proximal non-acral locations, accompanied by non-classic features that label them as indeterminate lesions and pose diagnostic challenge for both radiologists and pathologists alike. Purpose To explicate the potential of diagnostic imaging in the identification and characterization of appendicular non-acral STCs with emphasis on their morphologic magnetic resonance imaging (MRI) enhancement...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28904878/the-effects-of-different-physical-activities-on-atrial-fibrillation-in-patients-with-hypertension-and-chronic-kidney-disease
#11
Márcio Galindo Kiuchi, Shaojie Chen, Neil Alexander Hoye
BACKGROUND: Atrial fibrillation (AF) is highly common, and is most frequently observed in individuals with hypertension and structural cardiac disease. Sympathetic hyperactivity plays a fundamental role in the progression, maintenance and aggravation of arrhythmia. Endurance exercise training clearly lowers sympathetic activity in sympathoexcitatory disease states, and is well-tolerated by patients with chronic kidney disease (CKD). METHODS: We assessed 50 CKD patients with hypertension...
September 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28904232/effects-of-high-versus-moderate-intensity-training-on-neuroplasticity-and-functional-recovery-after-focal-ischemia
#12
Caroline Pin-Barre, Annabelle Constans, Jeanick Brisswalter, Christophe Pellegrino, Jérôme Laurin
BACKGROUND AND PURPOSE: This study was designed to compare the effects of high-intensity interval training (HIT) and moderate-intensity aerobic training (MOD) on functional recovery and cerebral plasticity during the first 2 weeks after cerebral ischemia. METHODS: Rats were randomized as follows: control (n=15), SHAM (n=9), middle cerebral artery occlusion (n=13), middle cerebral artery occlusion at day 1 (n=7), MOD (n=13), and HIT (n=13). Incremental tests were performed at day 1 (D1) and 14 (D14) to identify the running speed associated with the lactate threshold (SLT) and the maximal speed (Smax)...
September 13, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28902118/concurrent-training-followed-by-detraining-does-the-resistance-training-intensity-matter
#13
António C Sousa, Daniel A Marinho, Maria H Gil, Mikel Izquierdo, David Rodríguez-Rosell, Henrique P Neiva, Mário C Marques
The aim of the present study was to analyze the training and detraining effects of concurrent aerobic training and resistance training against three different external loads on strength and aerobic variables. Thirty-two men were randomly assigned to four groups: low-load (LLG, n=9), moderate-load (MLG, n=9), high-load (HLG, n=8), and control group (CG, n=6). Resistance training consisted of FS with a low-load (40-55% 1RM), a moderate-load (55-70% 1RM) or a high-load (70-85% 1RM) combined with jump and sprint exercises...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28902115/repeated-high-intensity-cycling-performance-is-unaffected-by-timing-of-carbohydrate-ingestion
#14
Ren-Jay Shei, Hunter L Paris, Christopher P Beck, Robert F Chapman, Timothy D Mickleborough
To determine whether carbohydrate feeding taken immediately before, early, or late in a series of high-intensity cycling exercises affected cycling performance 16 trained, male cyclists (> 6hr post-prandial) performed three, 4-km cycling time trials (TT1, TT2, TT3) separated by 15 min of active recovery on four separate occasions. Carbohydrate feeding (80g) was given either before TT1 (PRE1), before TT2 (PRE2), before TT3 (PRE3), or not at all (control, CTL). Treatment order was randomized. Sweet-placebo was given prior to the other time trials...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28901118/randomized-controlled-trial-of-maximal-strength-training-vs-standard-rehabilitation-following-total-knee-arthroplasty
#15
Vigdis S Husby, Olav A Foss, Otto S Husby, Siri B Winther
BACKGROUND: Total knee arthroplasty (TKA) alleviates pain, but muscle strength and function is reduced for a long period postoperatively. AIM: To investigate whether maximal strength training (MST) is more effective in improving muscle strength than standard rehabilitation (SR) after TKA. DESIGN: A randomized, controlled study. SETTING: Community physical therapy centers and University hospital research department. POPULATION: Forty-one adults <75 years with primary, unilateral osteoarthritis of the knee scheduled for TKA...
September 13, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28900291/assessing-the-expected-response-to-genomic-selection-of-individuals-and-families-in-eucalyptus-breeding-with-an-additive-dominant-model
#16
R T Resende, M D V Resende, F F Silva, C F Azevedo, E K Takahashi, O B Silva-Junior, D Grattapaglia
We report a genomic selection (GS) study of growth and wood quality traits in an outbred F2 hybrid Eucalyptus population (n=768) using high-density single-nucleotide polymorphism (SNP) genotyping. Going beyond previous reports in forest trees, models were developed for different selection targets, namely, families, individuals within families and individuals across the entire population using a genomic model including dominance. To provide a more breeder-intelligible assessment of the performance of GS we calculated the expected response as the percentage gain over the population average expected genetic value (EGV) for different proportions of genomically selected individuals, using a rigorous cross-validation (CV) scheme that removed relatedness between training and validation sets...
October 2017: Heredity
https://www.readbyqxmd.com/read/28899655/characteristics-of-physical-activity-interventions-and-effects-on-cardiorespiratory-fitness-in-children-aged-6-12-years-a-systematic-review
#17
REVIEW
Petra Braaksma, Ilse Stuive, Rianne M E Garst, Carlijn F Wesselink, Corry K van der Sluis, Rienk Dekker, Marina M Schoemaker
OBJECTIVES: To examine the characteristics of physical activity (PA) interventions and the effects on cardiorespiratory fitness (CRF) in healthy children based on treatment theory. DESIGN: Systematic review. METHODS: PubMed and Embase were searched for studies published between 2003 and 2016. Inclusion criteria were: Participants: healthy children aged 6-12. INTERVENTIONS: interventions with activities to increase PA behaviour or physical fitness (PF) regardless of setting...
July 20, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28898133/differential-impact-of-treadmill-training-on-stroke-induced-neurological-disorders
#18
Rasoul Rezaei, Maryam Nourshahi, Fariba Khodagholi, Abbas Haghparast, Sanaz Nasoohi, Mohammadreza Bigdeli, Ghorbangol Ashabi
OBJECTIVE: Physical exercise contributes to improving stability against nerve injury caused by ischaemic stroke. Here we aimed to preliminarily investigate the effects of continuous endurance training (CET) and high-intensity interval training (HIT) on stroke-associated anxiety, locomotion, neurological assessments and P70S6 Kinase (P70S6K) activation as well. To do this, rats were trained according to HIT and CET protocols for 2 months prior to being subject to middle cerebral artery occlusion surgery...
September 12, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28895659/implementation-strategies-for-health-systems-in-low-income-countries-an-overview-of-systematic-reviews
#19
REVIEW
Tomas Pantoja, Newton Opiyo, Simon Lewin, Elizabeth Paulsen, Agustín Ciapponi, Charles S Wiysonge, Cristian A Herrera, Gabriel Rada, Blanca Peñaloza, Lilian Dudley, Marie-Pierre Gagnon, Sebastian Garcia Marti, Andrew D Oxman
BACKGROUND: A key function of health systems is implementing interventions to improve health, but coverage of essential health interventions remains low in low-income countries. Implementing interventions can be challenging, particularly if it entails complex changes in clinical routines; in collaborative patterns among different healthcare providers and disciplines; in the behaviour of providers, patients or other stakeholders; or in the organisation of care. Decision-makers may use a range of strategies to implement health interventions, and these choices should be based on evidence of the strategies' effectiveness...
September 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28895467/kinetic-and-kinematic-patterns-during-high-intensity-clean-movement-searching-for-optimal-load
#20
Achraf Ammar, Bryan L Riemann, Liwa Masmoudi, Marcel Blaumann, Osama Abdelkarim, Anita Hökelmann
The aim of the present study was to investigate loading effects on kinematic and kinetic variables among elite-weightlifters in order to identify an optimal training load to maximize power production for clean-movement. Nine elite-weightlifter (age: 24 ± 4years, body-mass: 77 ± 6.5kg, height: 176 ± 6.1cm and 1RM clean: 170 ± 5kg) performed 2 separate repetitions of the clean using 85, 90, 95% and 100%, in a randomized order, while standing on a force platform and being recorded using 3D-capture-system. Differences in kinematics (barbell displacement, velocity and acceleration) and kinetics (power, vertical ground reaction force (vGRF), rate of force development (RFD), and work) across the loads were statistically assessed...
September 12, 2017: Journal of Sports Sciences
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