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https://www.readbyqxmd.com/read/29346164/the-nuclear-receptor-nor-1-is-a-pleiotropic-regulator-of-exercise-induced-adaptations
#1
Michael A Pearen, George E O Muscat
Exercise induces various physical and metabolic changes in skeletal muscle that adaptively reprograms this tissue to current physiological and environmental demands. Underlying these changes are broad modifications to gene expression. We postulate that the nuclear hormone receptor, Nor-1, is activated following exercise and this transcription factor modifies gene expression to drive the molecular and cellular adaptations associated with contractile reorganization.
January 15, 2018: Exercise and Sport Sciences Reviews
https://www.readbyqxmd.com/read/29346160/potential-role-of-microrna-in-the-anabolic-capacity-of-skeletal-muscle-with-aging
#2
Lee M Margolis, Donato A Rivas
Age-induced loss of skeletal muscle mass and function, termed sarcopenia, may be the result of diminished response to anabolic stimulation. This review will explore the hypothesis that alterations in the expression of microRNA with aging contributes to reduced muscle plasticity resulting in impaired skeletal muscle adaptations to exercise-induced anabolic stimulation.
January 15, 2018: Exercise and Sport Sciences Reviews
https://www.readbyqxmd.com/read/29345213/matcha-green-tea-drinks-enhance-fat-oxidation-during-brisk-walking-in-females
#3
Mark Elisabeth Theodorus Willems, Mehmet Akif Şahin, Matthew David Cook
Intake of the catechin epigallocatechin gallate and caffeine has been shown to enhance exercise-induced fat oxidation. Matcha green tea powder contains catechins and caffeine and is consumed as a drink. We examined the effect of Matcha green tea drinks on metabolic, physiological and perceived intensity responses during brisk walking. Thirteen females (age: 27±8 yr, body mass: 65±7 kg, height: 166±6 cm) volunteered. Resting metabolic equivalent (1-MET) was measured using Douglas bags (1-MET: 3.4±0.3 ml·kg-1·min-1)...
January 18, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29345019/a-vascular-mechanism-to-explain-thermally-mediated-variations-in-deep-body-cooling-rates-during-the-immersion-of-profoundly-hyperthermic-individuals
#4
Joanne N Caldwell, Anne M J van den Heuvel, Pete Kerry, Mitchell J Clark, Gregory E Peoples, Nigel A S Taylor
Physiologically trivial time differences for cooling the intrathoracic viscera of hyperthermic individuals have been reported between cold- and temperate-water immersion treatments. One explanation for that observation is reduced convective heat delivery to the skin during cold immersion, and this experiment was designed to test both the validity of that observation, and its underlying hypothesis. Eight healthy males participated in four head-out, water immersions: two when normothermic, and two following exercise-induced, moderate-profound hyperthermia...
January 18, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29343673/transcutaneous-exercise-oximetry-for-patients-with-claudication%C3%A3-a-retrospective-review-of-approximately-5-000-consecutive-tests-over-15-years
#5
Pierre Abraham, Christophe Colas-Ribas, Isabelle Signolet, Myriam Ammi, Mathieu Feuilloy, Jean Picquet, Samir Henni
BACKGROUND: Exercise transcutaneous oximetry (Ex-tcPO2) is used to argue for the vascular origin of lower limb pain, especially at the proximal level, where the diagnosis of peripheral artery disease can be difficult. This study analyzed the principal indications, mean results, and limitations of Ex-tcPO2, as well as the relationship between the annual number of Ex-tcPO2 tests and internal iliac artery (IIA) revascularizations.Methods and Results:Data from our first 15 years' experience (3,631 patients, 5,080 tests) with Ex-tcPO2 were analyzed retrospectively using the minimal value of the decrease from rest of oxygen pressure (DROPmin)...
January 18, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29341364/food-dependent-exercise-induced-anaphylaxis-in-japanese-elementary-school-children
#6
Tetsuharu Manabe, Norihiro Oku, Yukoh Aihara
BACKGROUND: In 2012, we clarified that the prevalence of food-dependent exercise-induced anaphylaxis (FDEIA) was 0.018% among junior-high students in Yokohama, Japan. Furthermore, although different from FDEIA, one student who had completed oral immunotherapy developed anaphylaxis during exercise after eating causative food. However, there have been few large-scale epidemiological studies of FDEIA in elementary school children, so we conducted the epidemiological study among elementary school children in Yokohama to clarify the frequency and characteristic of FDEIA...
January 17, 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29340984/exercise-induced-st-elevation-with-minimal-ischemia-by-perfusion-imaging
#7
Ayman A Farag, Shane Prejean, Ami E Iskandrian, Fadi G Hage
No abstract text is available yet for this article.
January 16, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29338015/exercise-induced-circulating-microrna-changes-in-athletes-in-various-training-scenarios
#8
Martin Horak, Filip Zlamal, Robert Iliev, Jan Kucera, Jan Cacek, Lenka Svobodova, Zuzana Hlavonova, Tomas Kalina, Ondrej Slaby, Julie Bienertova-Vasku
BACKGROUND: The aim of the study was to compare selected extracellular miRNA levels (miR-16, miR-21, miR-93 and miR-222 with the response to 8-week-long explosive strength training (EXPL), hypertrophic strength training (HYP) and high-intensity interval training (HIIT). METHODS: 30 young male athletes of white European origin (mean age: 22.5 ± 4.06 years) recruited at the Faculty of Sports Studies of Masaryk University were enrolled in this study. The study participants were randomly assigned to three possible training scenarios: EXPL, HYP or HITT and participated in 8-week-long program in given arm...
2018: PloS One
https://www.readbyqxmd.com/read/29331100/prevalence-associated-factors-and-control-level-of-asthma-symptoms-among-adolescents-in-northern-jordan
#9
Nihaya A Al-Sheyab, Mahmoud A Alomari
Objective To investigate the prevalence, associated factors, and control level of asthma in Jordanian high school students. Methods A descriptive, comparative, cross sectional design was used and a cluster sample of 2691 students (mean age = 14.5 years, 51.0% girls), drawn from eight randomly selected public high schools in Northern Jordan, participated in the study. Each student had the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire completed in the classroom between February and May, 2015...
January 13, 2018: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/29326089/associations-between-markers-of-oxidative-stress-skeletal-muscle-mass-and-function-and-to-the-influence-of-resistance-exercise-training-in-older-adults
#10
Ciriaco Carru, Mariasole Da Boit, Panagiotis Paliogiannis, Angelo Zinellu, Salvatore Sotgia, Rachael Sibson, Judith R Meakin, Richard M Aspden, Arduino A Mangoni, Stuart R Gray
BACKGROUND: Oxidative stress (OS) negatively affects skeletal muscle homeostasis in experimental models of ageing. However, little is known about the associations between circulating OS markers and parameters of muscle mass and function, and their responses to exercise training, in humans. METHODS: Maximal voluntary contraction (MVC, primary outcome) and isokinetic torque of the knee extensors at 30° s-1 (MIT), muscle cross-sectional area (MCSA) and quality (MQ, secondary outcomes), and plasma concentrations of malondialdehyde (MDA, pro-OS), homocysteine (HCY, pro-OS), taurine (TAU, anti-OS), and protein sulphydryl groups (PSH, anti-OS) were measured in 27 healthy older males and 23 females at baseline and after an 18-week resistance exercise program, with or without a nutritional intervention (fish oil vs...
January 8, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29324186/impact-of-sodium-citrate-ingestion-during-recovery-after-dehydrating-exercise-on-rehydration-and-subsequent-40-km-cycling-time-trial-performance-in-the-heat
#11
Silva Suvi, Martin Mooses, Saima Timpmann, Luule Medijainen, Daria Narõškina, Eve Unt, Vahur Ööpik
The purpose of this study was to assess the impact of sodium citrate (CIT) ingestion (600 mg·kg<sup>‒1</sup>) during recovery from dehydrating cycling exercise (DE) on subsequent 40-km cycling performance in a warm environment (32 °C). Twenty male non-heat-acclimated endurance athletes exercised in the heat until 4% body mass (BM) loss occurred. After 16 h recovery with consumption of water ad libitum and prescribed diet (evening meal 20 kcal·kg<sup>‒1</sup>, breakfast 12 kcal·kg<sup>‒1</sup>) supplemented in a double-blind, randomized, crossover manner with CIT or placebo (PLC), they performed 40-km time-trial (TT) on a cycle ergometer in a warm environment...
January 11, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29320704/extracellular-vesicles-provide-a-means-for-tissue-crosstalk-during-exercise
#12
Martin Whitham, Benjamin L Parker, Martin Friedrichsen, Janne R Hingst, Marit Hjorth, William E Hughes, Casey L Egan, Lena Cron, Kevin I Watt, Rhiannon P Kuchel, Navind Jayasooriah, Emma Estevez, Tim Petzold, Catherine M Suter, Paul Gregorevic, Bente Kiens, Erik A Richter, David E James, Jørgen F P Wojtaszewski, Mark A Febbraio
Exercise stimulates the release of molecules into the circulation, supporting the concept that inter-tissue signaling proteins are important mediators of adaptations to exercise. Recognizing that many circulating proteins are packaged in extracellular vesicles (EVs), we employed quantitative proteomic techniques to characterize the exercise-induced secretion of EV-contained proteins. Following a 1-hr bout of cycling exercise in healthy humans, we observed an increase in the circulation of over 300 proteins, with a notable enrichment of several classes of proteins that compose exosomes and small vesicles...
January 9, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29318900/exercise-induced-myokines-as-emerging-therapeutic-agents-in-colorectal-cancer-prevention-and-treatment
#13
Priya Roy, Sanjib Chowdhury, Hemant K Roy
No abstract text is available yet for this article.
January 10, 2018: Future Oncology
https://www.readbyqxmd.com/read/29318030/environmental-temperature-and-exercise-modality-independently-impact-central-and-muscle-fatigue-among-people-with-multiple-sclerosis
#14
Geetika Grover, Michelle Ploughman, Devin T Philpott, Liam P Kelly, Augustine J Devasahayam, Katie Wadden, Kevin E Power, Duane C Button
Background: Heat sensitivity and fatigue limit the ability of multiple sclerosis patients to participate in exercise. Objective: The purpose of this study was to determine the optimal aerobic exercise parameters (environmental temperature and exercise modality) to limit exercise-induced central and muscle fatigue among people with multiple sclerosis. Methods: Fourteen people with multiple sclerosis with varying levels of disability completed four randomized exercise sessions at 65% of the maximal volume of oxygen: body-weight supported treadmill cool (16°C), body-weight supported treadmill room (21°C), total-body recumbent stepper cool and total-body recumbent stepper room...
October 2017: Multiple Sclerosis Journal—Experimental, Translational and Clinical
https://www.readbyqxmd.com/read/29315829/effects-of-acute-isometric-resistance-exercise-on-cervicomedullary-motor-evoked-potentials
#15
James L Nuzzo, Benjamin K Barry, Simon C Gandevia, Janet L Taylor
Cervicomedullary motor evoked potentials (CMEPs) in relaxed biceps brachii have been reported to facilitate after acute isometric exercise of the elbow flexors. This facilitation, which reflects either enhanced corticospinal transmission or increased motoneurone excitability, has only been documented in the limb posture used during exercise. In Experiment 1, we tested if these spinal changes "transfer" to a second posture. Fourteen individuals completed 12 sets of high-force isometric contractions of the elbow flexors with the forearm pronated...
January 6, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29315567/the-influence-of-capillarization-on-satellite-cell-pool-expansion-and-activation-following-exercise-induced-muscle-damage-in-healthy-young-men
#16
Joshua P Nederveen, Sophie Joanisse, Tim Snijders, Aaron Cq Thomas, Dinesh Kumbhare, Gianni Parise
Factors that determine the skeletal muscle satellite cell (SC) response remain incompletely understood. It is known, however, that SC activation status is closely related to the anatomical relationship between SC and muscle capillaries. We investigated the impact of muscle fibre capillarization on the expansion and activation status of SC following a muscle damaging exercise protocol in healthy young men. Twenty-nine young men (21 ± 0.5 yrs) performed 300 unilateral eccentric contractions (180 deg·s-1 ) of the knee extensors...
January 6, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29313359/effects-of-different-aerobic-exercise-programmes-with-nutritional-intervention-in-sedentary-adults-with-overweight-obesity-and-hypertension-exerdiet-hta-study
#17
Ilargi Gorostegi-Anduaga, Pablo Corres, Aitor MartinezAguirre-Betolaza, Javier Pérez-Asenjo, G Rodrigo Aispuru, Simon M Fryer, Sara Maldonado-Martín
Background Both exercise training and diet are recommended to prevent and control hypertension and overweight/obesity. Purpose The purpose of this study was to determine the effectiveness of different 16-week aerobic exercise programmes with hypocaloric diet on blood pressure, body composition, cardiorespiratory fitness and pharmacological treatment. Methods Overweight/obese, sedentary participants ( n = 175, aged 54.0 ± 8.2 years) with hypertension were randomly assigned into an attention control group (physical activity recommendations) or one of three supervised exercise groups (2 days/week: high-volume with 45 minutes of moderate-intensity continuous training (MICT), high-volume and high-intensity interval training (HIIT), alternating high and moderate intensities, and low-volume HIIT (20 minutes))...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29306678/exercise-transcutaneous-oximetry-significantly-modifies-the-diagnostic-hypotheses-and-impacts-scheduled-investigations-or-treatments-of-patients-with-exertional-limb-pain
#18
Samir Henni, Guillaume Mahe, Christophe Lamotte, Remi Laurent, Alessandra Bura Riviere, Marion Aubourg, Gabrielle Sarlon, Damien Laneelle, Anne Long, Isabelle Signolet, Jean Picquet, Mathieu Feuilloy, Pierre Abraham
INTRODUCTION: In lower extremity peripheral artery disease (PAD), transcutaneous oximetry at exercise (Ex-TcpO2) has been largely validated in research practice, but evidence of routine practice in various vascular laboratories is missing. We hypothesized that Ex-TcPO2 would change the diagnosis hypotheses, investigations and treatments for patients referred for exertional limb pain. MATERIAL & METHODS: A multicenter prospective trial was conducted in nine different referral centers...
January 3, 2018: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29306449/chronic-exercise-induces-pathological-left-ventricular-hypertrophy-in-adrenaline-deficient-mice
#19
Priscila Mendes, Raquel Martinho, Sara Leite, Leonardo Maia-Moço, Adelino F Leite-Moreira, André P Lourenço, Mónica Moreira-Rodrigues
Adrenaline-deficient phenylethanolamine-N-methyltransferase-knockout mice (Pnmt-KO) have concentric heart remodeling and though their resting blood pressure is normal, it becomes higher during acute exercise. The aim of this study was to evaluate cardiac morphological, functional and molecular alterations after chronic exercise in adrenaline-deficient mice. Genotypes at the Pnmt locus were verified by polymerase chain reaction (PCR) of ear samples of Pnmt-KO and wild-type (WT) mice. These mice were submitted to chronic exercise training during 6weeks...
February 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29301680/moderate-intensity-exercise-induced-catecholamine-release-in-the-preoptic-area-and-anterior-hypothalamus-in-rats-is-enhanced-in-a-warm-environment
#20
Xinyan Zheng, Satomi Takatsu, Ryo Ishikawa, Hiroshi Hasegawa
Thermoeffector responses and core body temperature (Tcore) homeostasis during exercise are affected by both ambient temperature and exercise intensity. We have previously reported that Tcore, heat loss responses, and catecholamine release in the preoptic area and anterior hypothalamus (PO/AH) increased during incremental treadmill running. However, no previous study has examined whether changes in the thermoregulatory responses at warm ambient temperature are related to catecholamine responses during moderate intensity exercise in rats...
January 2018: Journal of Thermal Biology
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