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https://www.readbyqxmd.com/read/29351335/the-effects-of-an-acute-exercise-bout-on-gh-and-igf-1-in-prediabetic-and-healthy-african-americans-a-pilot-study-investigating-gene-expression
#1
Nathaniel T Berry, Monica Hubal, Laurie Wideman
The incidence of pre-diabetes (PD) and Type-2 Diabetes Mellitus (T2D) is a worldwide epidemic. African American (AA) individuals are disproportionately more likely to become diabetic than other ethnic groups. Over the long-term, metabolic complications related to diabetes result in significant alterations in growth hormone (GH) and insulin-like growth factor-1 (IGF-1). Considering the limited exercise-related studies in the area of gene expression changes with disease progression, the objective of this study was to examine differences in exercise-induced gene expression related to the GH and IGF-1 pathways in peripheral blood mononuclear cells (PBMCs) of healthy (CON) and PD AA individuals...
2018: PloS One
https://www.readbyqxmd.com/read/29351130/comparative-effectiveness-of-low-volume-time-efficient-resistance-training-versus-endurance-training-in-patients-with-heart-failure
#2
Gregers Winding Munch, Jaya Birgitte Rosenmeier, Morten Petersen, Anders Rasmussen Rinnov, Ulrik Winning Iepsen, Bente Klarlund Pedersen, Stefan Peter Mortensen
PURPOSE: Cardiorespiratory fitness is positively related to heart failure (HF) prognosis, but lack of time and low energy are barriers for adherence to exercise. We, therefore, compared the effect of low-volume time-based resistance exercise training (TRE) with aerobic moderate-intensity cycling (AMC) on maximal and submaximal exercise capacity, health-related quality of life, and vascular function. METHODS: Twenty-eight HF patients (New York Heart Association class I-II) performed AMC (n = 14) or TRE (n = 14)...
January 18, 2018: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/29349712/highly-favorable-physiological-responses-to-concurrent-resistance-and-high-intensity-interval-training-during-chemotherapy-the-optitrain-breast-cancer-trial
#3
Sara Mijwel, Malin Backman, Kate A Bolam, Emil Olofsson, Jessica Norrbom, Jonas Bergh, Carl Johan Sundberg, Yvonne Wengström, Helene Rundqvist
BACKGROUND: Advanced therapeutic strategies are often accompanied by significant adverse effects, which warrant equally progressive countermeasures. Physical exercise has proven an effective intervention to improve physical function and reduce fatigue in patients undergoing chemotherapy. Effects of high-intensity interval training (HIIT) in this population are not well established although HIIT has proven effective in other clinical populations. The aim of the OptiTrain trial was to examine the effects of concurrent resistance and high-intensity interval training (RT-HIIT) or concurrent moderate-intensity aerobic and high-intensity interval training (AT-HIIT), to usual care (UC) on pain sensitivity and physiological outcomes in patients with breast cancer during chemotherapy...
January 18, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29348183/neurophysiological-mechanisms-of-exertional-dyspnoea-in-fibrotic-interstitial-lung-disease
#4
Michele R Schaeffer, Christopher J Ryerson, Andrew H Ramsook, Yannick Molgat-Seon, Sabrina S Wilkie, Satvir S Dhillon, Reid A Mitchell, A William Sheel, Nasreen Khalil, Pat G Camp, Jordan A Guenette
Our understanding of the mechanisms of dyspnoea in fibrotic interstitial lung disease (ILD) is incomplete. The aims of this study were two-fold: 1) to determine whether dyspnoea intensity is better predicted by neural respiratory drive (NRD) or neuromechanical uncoupling (NMU) of the respiratory system in fibrotic ILD, and 2) to examine the effect of breathing 60% oxygen on NRD, NMU and dyspnoea ratings.Fourteen patients with fibrotic ILD were included. Visit 1 comprised a familiarisation incremental cycle exercise test, Visit 2 comprised a normoxic incremental cycling test to address Aim 1, and Visits 3 and 4 consisted of constant-load cycling while breathing room air or 60% oxygen to address Aim 2...
January 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29347921/prospective-pre-and-post-race-evaluation-of-biochemical-electrophysiologic-and-echocardiographic-indices-in-30-racing-thoroughbred-horses-that-received-furosemide
#5
Catherine T Gunther-Harrington, Rick Arthur, Krista Estell, Beatriz Martinez Lopez, Alexandra Sinnott, Eric Ontiveros, Anita Varga, Joshua A Stern
BACKGROUND: Exercise induced cardiac fatigue (EICF) and cardiac dysrhythmias are well described conditions identified in high-level human athletes that increase in frequency with intensity and duration of exercise. Identification of these conditions requires an understanding of normal pre- and post-race cardiac assessment values. The objectives of this study were to (1) characterize selected indices of cardiac function, electrophysiologic parameters, and biochemical markers of heart dysfunction prior to and immediately after high level racing in Thoroughbred horses receiving furosemide; and (2) create pre- and post-race reference values in order to make recommendations on possible screening practices for this population in the future...
January 18, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29345213/matcha-green-tea-drinks-enhance-fat-oxidation-during-brisk-walking-in-females
#6
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/29345167/dietary-supplements-for-health-adaptation-and-recovery-in-athletes
#7
Eric S Rawson, Mary P Miles, D Enette Larson-Meyer
Some dietary supplements are recommended to athletes based on data that supports improved exercise performance. Other dietary supplements are not ergogenic per se, but may improve health, adaptation to exercise, or recovery from injury, and so could help athletes to train and/or compete more effectively. In this review, we describe several dietary supplements that may improve health, exercise adaptation, or recovery. Creatine monohydrate may improve: recovery from and adaptation to intense training, recovery from periods of injury with extreme inactivity, cognitive processing, and reduce severity of or enhance recovery from mild traumatic brain injury (mTBI)...
January 18, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29345161/caffeine-improves-triathlon-performance-a-field-study-in-males-and-females
#8
Sunita Potgieter, Hattie H Wright, Carine Smith
The ergogenic effect of caffeine on endurance exercise is commonly accepted. We aimed to elucidate realistically the effect of caffeine on triathlon event performance using a field study design, while allowing investigation into potential mechanisms at play. A double-blind, randomized, crossover, field trial was conducted. Twenty-six triathletes (14 males, 12 females) participated (age: 37.8±10.6 years, habitual caffeine intake: 413±505 mg/day, percentage body fat: 14.5±7.2%, training/week: 12.8±4.5 hours)...
January 18, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29344913/cardiac-basal-autophagic-activity-and-increased-exercise-capacity
#9
Fang-Hui Li, Tao Li, Ying-Min Su, Jing-Yi Ai, Rui Duan, Timon Cheng-Yi Liu
To investigate whether high-intensity interval training (HIIT) and continuous moderate-intensity training (CMT) have different impacts on exercise performance and cardiac function and to determine the influence of these exercise protocols on modulating basal autophagy in the cardiac muscle of rats. Rats were assigned to three groups: sedentary control (SC), CMT, and HIIT. Total exercise volume and mean intensity were matched between the two protocols. After a 10-week training program, rats were evaluated for exercise performance, including exercise tolerance and grip strength...
January 17, 2018: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/29344729/sodium-bicarbonate-supplementation-improves-severe-intensity-intermittent-exercise-under-moderate-acute-hypoxic-conditions
#10
Sanjoy K Deb, Lewis A Gough, S Andy Sparks, Lars R McNaughton
Acute moderate hypoxic exposure can substantially impair exercise performance, which occurs with a concurrent exacerbated rise in hydrogen cation (H+) production. The purpose of this study was therefore, to alleviate this acidic stress through sodium bicarbonate (NaHCO3) supplementation and determine the corresponding effects on severe-intensity intermittent exercise performance. Eleven recreationally active individuals participated in this randomised, double-blind, crossover study performed under acute normobaric hypoxic conditions (FiO2% = 14...
January 17, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29344422/the-effects-of-physical-training-are-varied-and-occur-in-an-exercise-type-dependent-manner-in-elderly-men
#11
Mari L Sbardelotto, Giulia S Pedroso, Fernanda T Pereira, Helen R Soratto, Stella Ms Brescianini, Pauline S Effting, Anand Thirupathi, Renata T Nesi, Paulo Cl Silveira, Ricardo A Pinho
Regular exercise can decrease the deleterious effects of aging and limit the development and progression of chronic disease in elderly people, depending on the type, intensity, frequency, and duration of exercise. This study aimed to investigate the potential protective effects of different physical training programs on oxidative stress parameters and inflammatory and neurotrophic mediators in the serum of elderly men. Healthy male volunteers [60 to 80 years; n=55] were divided into four groups: control [Ctr, n=14], aerobic training on dry land [ATdl, n=12]; and combined training on dry land [CTdl, n=12] or in water [CTw, n=17]...
December 2017: Aging and Disease
https://www.readbyqxmd.com/read/29344008/understanding-the-factors-that-effect-maximal-fat-oxidation
#12
REVIEW
Troy Purdom, Len Kravitz, Karol Dokladny, Christine Mermier
Lipids as a fuel source for energy supply during submaximal exercise originate from subcutaneous adipose tissue derived fatty acids (FA), intramuscular triacylglycerides (IMTG), cholesterol and dietary fat. These sources of fat contribute to fatty acid oxidation (FAox) in various ways. The regulation and utilization of FAs in a maximal capacity occur primarily at exercise intensities between 45 and 65% VO2max, is known as maximal fat oxidation (MFO), and is measured in g/min. Fatty acid oxidation occurs during submaximal exercise intensities, but is also complimentary to carbohydrate oxidation (CHOox)...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29343130/a-community-based-exercise-program-to-increase-participation-in-physical-activities-among-youth-with-disability-a-feasibility-study
#13
Nora Shields, Roos van den Bos, Kirsty Buhlert-Smith, Luke Prendergast, Nicholas Taylor
PURPOSE: To evaluate the feasibility of a student-mentored community-based exercise program for youth with disability. METHOD: Nineteen youth (nine female; mean age 18 years) with disability (seven cerebral palsy, six Down syndrome, three spina bifida, two autism spectrum disorder, one spinal cord injury) were recruited. Each participant was matched with a student mentor and exercised twice a week for 12 weeks at their local gymnasium. Five domains of feasibility were assessed: demand, implementation, practicality, limited efficacy testing, and acceptability...
January 17, 2018: Disability and Rehabilitation
https://www.readbyqxmd.com/read/29342932/interstitial-glucose-and-physical-exercise-in-type-1-diabetes-integrative-physiology-technology-and-the-gap-in-between
#14
REVIEW
Othmar Moser, Jane E Yardley, Richard M Bracken
Continuous and flash glucose monitoring systems measure interstitial fluid glucose concentrations within a body compartment that is dramatically altered by posture and is responsive to the physiological and metabolic changes that enable exercise performance in individuals with type 1 diabetes. Body fluid redistribution within the interstitial compartment, alterations in interstitial fluid volume, changes in rate and direction of fluid flow between the vasculature, interstitium and lymphatics, as well as alterations in the rate of glucose production and uptake by exercising tissues, make for caution when interpreting device read-outs in a rapidly changing internal environment during acute exercise...
January 15, 2018: Nutrients
https://www.readbyqxmd.com/read/29339987/physiological-demands-morphological-characteristics-physical-abilities-and-injuries-of-female-soccer-players
#15
Zoran Milanović, Goran Sporiš, Nic James, Nebojša Trajković, Aleksandar Ignjatović, Hugo Sarmento, Athos Trecroci, Bruno Miguel Borges Mendes
The popularity of female soccer is increasing as well as the number of females playing soccer. Similarly, over the last twenty or so years, research in soccer has increased significantly, but a large disparity exists in the volume of studies involving male and female players. As a consequence of this, female players remain less well understood compared to males. The purpose of the present narrative review was to describe morphological characteristics, physiological demands, physical abilities and injuries in female soccer players...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29339923/an-acute-bout-of-housework-activities-has-beneficial-effects-on-executive-function
#16
Kenji Tsuchiya, Shinichi Mitsui, Ryuji Fukuyama, Noriki Yamaya, Takaaki Fujita, Kaori Shimoda, Fusae Tozato
Purpose: Although acute bouts of exercise reportedly have beneficial effects on executive function, inactive people may find it difficult to start exercising. In this study, we focused on housework activities (HAs) that generate a sense of accomplishment and require a mild intensity of physical activity. We examined the impact of an acute bout of HA on executive function and oxygenated hemoglobin (oxy-Hb) flow to related cortical regions. Materials and methods: Twenty-five participants (age, 18-21 years; mean, 19...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29338917/exercise-training-in-adults-with-repaired-tetralogy-of-fallot-a-randomized-controlled-pilot-study-of-continuous-versus-interval-training
#17
Marko Novaković, Katja Prokšelj, Uroš Rajkovič, Tjaša Vižintin Cuderman, Katja Janša Trontelj, Zlatko Fras, Borut Jug
INTRODUCTION: Adults with repaired tetralogy of Fallot (ToF) have impaired exercise capacity, vascular and cardiac autonomic function, and quality of life (QoL). Specific effects of high-intensity interval or moderate continuous exercise training on these parameters in adults with repaired ToF remain unknown. METHODS AND RESULTS: Thirty adults with repaired ToF were randomized to either high-intensity interval, moderate intensity continuous training (36 sessions, 2-3 times a week) or usual care (no supervised exercise)...
January 3, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29338323/psychosocial-interventions-for-people-with-dementia-a-synthesis-of-systematic-reviews
#18
Orii McDermott, Georgina Charlesworth, Eef Hogervorst, Charlotte Stoner, Esme Moniz-Cook, Aimee Spector, Emese Csipke, Martin Orrell
OBJECTIVES: Over the last 10 years there has been a multitude of studies of psychosocial interventions for people with dementia. However, clinical services face a dilemma about which intervention should be introduced into clinical practice because of the inconsistency in some of the findings between different studies and the differences in the study qualities and trustworthiness of evidence. There was a need to provide a comprehensive summary of the best evidence to illustrate what works...
January 17, 2018: Aging & Mental Health
https://www.readbyqxmd.com/read/29338015/exercise-induced-circulating-microrna-changes-in-athletes-in-various-training-scenarios
#19
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/29337837/accidental-rivaroxaban-intoxication-in-a-boy-some-lessons-in-managing-new-oral-anticoagulants-in-children
#20
Julieta Weirthein, Dennis Scolnik, Nili Yanai Milshtein, Tali Capua, Miguel Glatstein
Novel oral anticoagulants offer equivalent or improved therapeutic profiles compared with warfarin, with less risk of bleeding, no interactions with food, and no need for routine laboratory monitoring. Caution must be exercised in using these drugs in certain patient populations, for example, renal insufficiency, those receiving additional antithrombotic therapy, those with questionable compliance, children, and those with a high risk of gastrointestinal bleeding. One of the novel oral anticoagulants, rivaroxaban, is a direct Factor Xa inhibitor, used to reduce risk of stroke and systemic embolism in patients with nonvalvular atrial fibrillation, deep vein thrombosis, and pulmonary embolism...
January 15, 2018: Pediatric Emergency Care
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