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Exercise physiology

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https://www.readbyqxmd.com/read/29332237/acute-acetaminophen-ingestion-improves-performance-and-muscle-activation-during-maximal-intermittent-knee-extensor-exercise
#1
Paul T Morgan, Joanna L Bowtell, Anni Vanhatalo, Andrew M Jones, Stephen J Bailey
AIM: Acetaminophen is a commonly used medicine for pain relief and emerging evidence suggests that it may improve endurance exercise performance. This study investigated some of the physiological mechanisms by which acute acetaminophen ingestion might blunt muscle fatigue development. METHODS: Thirteen active males completed 60 × 3 s maximum voluntary contractions (MVC) of the knee extensors with each contraction separated by a 2 s passive recovery period...
January 13, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29331594/effects-of-physical-activity-on-the-symptoms-of-tourette-syndrome-a-systematic-review
#2
David D Kim, Darren E R Warburton, Nana Wu, Alasdair M Barr, William G Honer, Ric M Procyshyn
There is irrefutable evidence that routine physical activity or exercise can offer considerable health benefits to individuals living with various mental disorders. However, it is not clear what effect physical activity has on the symptoms of Tourette syndrome. Despite a paucity of evidence, physical activity or exercise has already been recommended by various health organizations for the management of tics. We provide a systematic review of the effects of physical activity or exercise on tic symptomology in individuals with Tourette syndrome...
December 8, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/29329778/high-intensity-interval-training-versus-continuous-training-on-physiological-and-metabolic-variables-in-prediabetes-and-type-2-diabetes-a-meta-analysis
#3
REVIEW
Angélica Trevisan De Nardi, Tainara Tolves, Thatiane Larissa Lenzi, Luis Ulisses Signori, Antônio Marcos Vargas da Silva
AIMS: To compare the effects of high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) on functional capacity and cardiometabolic markers in individuals prediabetes and type 2 diabetes (T2D). METHODS: The search was performed in PubMed (MEDLINE), EMBASE, PEDro, CENTRAL, Scopus, LILACS database, and Clinical Trials from the inception to July 2017, included randomized clinical trials that compared the use of HIIT and MICT in prediabetes and T2D adults...
January 9, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29326895/effects-of-walking-with-hand-held-weights-on-energy-expenditure-and-excess-postexercise-oxygen-consumption
#4
Catherine T Campaña, Pablo B Costa
Walking is not only important to assist in performing daily tasks, but also to gain cardiovascular benefits. Further research on walking is needed to examine the physiological responses to improve health and reduce the risks of cardiovascular disease. The purpose of this study was to compare the energy expenditure (EE) during and after walking exercise with versus without hand-held weights (HHW). Nineteen sedentary women (mean±standard deviation; age, 21±2.7 years, height, 163.1±6.3 cm; body mass, 66.6± 15...
December 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29325455/influence-of-middle-distance-running-on-muscular-micro-rnas
#5
Elisa Danese, Marco Benati, Fabian Sanchis-Gomar, Cantor Tarperi, Gian Luca Salvagno, Elisa Paviati, Martina Montagnana, Federico Schena, Giuseppe Lippi
A specific subset of micro RNAs (miRs), including miR-133 and miR-206, is specifically expressed in muscle tissue, so that they are currently defined as muscular miRs (myomiRs). To further elucidate the role of myomiRs in muscle biology, we measured miR-133a and miR-206 in plasma of 28 middle-age recreational athletes. The study population consisted of 28 middle aged, recreation athletes (11 women and 17 men; mean age, 46 years) who completed a 21.1 km, half-marathon. The plasma concentration of miR-133a and miR-206, the serum concentration of creatine kinase (CK) and high-sensitivity (HS) cardiac troponin T (cTnT), as well as capillary lactate, were measured before and immediately after the run...
January 11, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29324693/inhibiting-the-physiological-stress-effects-of-a-sustained-attention-task-on-shoulder-muscle-activity
#6
Fiona Wixted, Cliona O'Riordan, Leonard O'Sullivan
OBJECTIVE: The objective of this study was to investigate if a breathing technique could counteract the effects of hyperventilation due to a sustained attention task on shoulder muscle activity. BACKGROUND: The trend towards higher levels of automation in industry is increasing. Consequently, manufacturing operators often monitor automated process for long periods of their work shift. Prolonged monitoring work requires sustained attention, which is a cognitive process that humans are typically poor at and find stressful...
January 11, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29324576/intermittent-cooling-during-judo-training-in-a-warm-humid-environment-reduces-autonomic-and-hormonal-impact
#7
Eduardo Carballeira, José Morales, David H Fukuda, María L Granada, Vicente Carratalá-Deval, Alfonso López Díaz de Durana, Jeffrey R Stout
The purpose of this study was to identify the effects of superficial cooling on physiological responses while training in a warm, humid environment during an international judo training camp. Sixteen judokas (8 women and 8 men) participated in the experiment. Four high-level women and four men were randomly assigned to wear a cooling vest (vest group, VG) during the recovery periods within a training session (i.e. 8 bouts of 5 min fighting with 5 min rest) and up to 10 min after the session, while the remaining athletes in the control group (CG) trained without the use of any cooling aids...
January 5, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29324562/effectiveness-of-interventions-to-prevent-pre-frailty-and-frailty-progression-in-older-adults-a-systematic-review
#8
João Apóstolo, Richard Cooke, Elzbieta Bobrowicz-Campos, Silvina Santana, Maura Marcucci, Antonio Cano, Miriam Vollenbroek-Hutten, Federico Germini, Barbara D'Avanzo, Holly Gwyther, Carol Holland
OBJECTIVE: To summarize the best available evidence regarding the effectiveness of interventions for preventing frailty progression in older adults. INTRODUCTION: Frailty is an age-related state of decreased physiological reserves characterized by an increased risk of poor clinical outcomes. Evidence supporting the malleability of frailty, its prevention and treatment, has been presented. INCLUSION CRITERIA: The review considered studies on older adults aged 65 and over, explicitly identified as pre-frail or frail, who had been undergoing interventions focusing on the prevention of frailty progression...
January 2018: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29324352/administration-of-exercise-conditioned-plasma-alters-muscle-catalase-kinetics-in-rat-an-argument-for-in-vivo-like-km-instead-of-in-vitro-like-vmax
#9
Aristidis S Veskoukis, Vassilis Paschalis, Antonios Kyparos, Michalis G Nikolaidis
Maximal velocity (Vmax) is a well established biomarker for the assessment of tissue redox status. There is scarce evidence, though, that it does not probably reflect sufficiently in vivo tissue redox profile. Instead, the Michaelis constant (Km) could more adequately image tissue oxidative stress and, thus, be a more physiologically relevant redox biomarker. Therefore, the aim of the present study was to side-by-side compare Vmax and Km of an antioxidant enzyme after implementing an in vivo set up that induces alterations in tissue redox status...
January 3, 2018: Redox Biology
https://www.readbyqxmd.com/read/29322520/muscle-cooling-too-much-of-a-good-thing
#10
C Mawhinney, R Allan
It is well documented that strenuous exercise elicits stress on the body, which may lead to physiological impairments and associated reductions in muscle function and fatigue, in the hours and days post-exercise. This article is protected by copyright. All rights reserved.
January 11, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29322250/lactate-metabolism-historical-context-prior-misinterpretations-and-current-understanding
#11
REVIEW
Brian S Ferguson, Matthew J Rogatzki, Matthew L Goodwin, Daniel A Kane, Zachary Rightmire, L Bruce Gladden
Lactate (La-) has long been at the center of controversy in research, clinical, and athletic settings. Since its discovery in 1780, La- has often been erroneously viewed as simply a hypoxic waste product with multiple deleterious effects. Not until the 1980s, with the introduction of the cell-to-cell lactate shuttle did a paradigm shift in our understanding of the role of La- in metabolism begin. The evidence for La- as a major player in the coordination of whole-body metabolism has since grown rapidly. La- is a readily combusted fuel that is shuttled throughout the body, and it is a potent signal for angiogenesis irrespective of oxygen tension...
January 10, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29321394/-chrono-nutrition-and-n-3-polyunsaturated-fatty-acid
#12
Shigenobu Shibata, Akiko Furutani
Circadian clock system has been widely maintained in many spices from prokaryote to mammals. "Circadian" means "approximately day" in Latin, thus circadian rhythm means about 24 hour rhythms. The earth revolves once every 24 hours, and our circadian system has been developed for adjusting to this 24 hour cycles, to get sun light information for getting their foods or for alive in birds or mammals. We have two different circadian systems so-called main oscillator located in the suprachiasmatic nucleus (SCN) of the hypothalamus, and local oscillator located in the various peripheral organ tissues such as liver, kidney and skeletal muscle...
2018: Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica
https://www.readbyqxmd.com/read/29320878/exercise-training-for-improving-outcomes-post-burns-a-systematic-review-and-meta-analysis
#13
Orlando Flores, Zephanie Tyack, Kellie Stockton, Robert Ware, Jennifer D Paratz
OBJECTIVES: To determine the effectiveness of different modalities of exercise and to evaluate the safety of exercise-based interventions post-burns. DATA SOURCES: Six databases were searched from inception to October 2017 using "burn," "exercise" and synonyms as keywords. Relevant authors, key journals and reference lists of included studies were hand-searched. REVIEW METHODS: Articles reporting on exercise interventions in patients post-burn and considering physical, physiological or psychological outcomes were considered...
January 1, 2018: Clinical Rehabilitation
https://www.readbyqxmd.com/read/29319584/physiological-responses-to-overdressing-and-exercise-heat-stress-in-trained-runners
#14
Brett R Ely, Laurie A Blanchard, Jared R Steele, Michael A Francisco, Samuel N Cheuvront, Christopher T Minson
Heat acclimation is the best strategy to improve performance in a hot environment. Many athletes seeking the benefits of heat acclimation lack access to a hot environment for exercise, and thus rely on over-dressing to simulate environmental heat stress. It is currently unknown whether this approach produces the requisite thermoregulatory strain necessary for heat acclimation in trained men and women. PURPOSE: To compare physiological and cellular responses to exercise in a hot environment (HOT; 40°C, 30%rh) with minimal clothing (clo= 0...
January 9, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29318339/-e-health-in-diagnosis-and-therapy-of-mental-disorders-will-therapists-soon-become-superfluous
#15
REVIEW
Stefan Lüttke, Martin Hautzinger, Kristina Fuhr
Digital media, online programs, and electronic health systems are available and easily accessible for diagnostic, prevention, and intervention of somatic and psychiatric disorders. These modern tools can assess objective as well as subjective information about acute symptoms, wellbeing, life quality, sleep, physiological indicators, etc. Wearables and apps collect data over days and weeks in the real world of subjects. This information can be used to document baselines as well as changes over time influenced by events or interventions...
January 9, 2018: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/29317069/blood-flow-restriction-training-as-a-prehabilitation-concept-in-total-knee-arthroplasty-a-narrative-review-about-current-preoperative-interventions-and-the-potential-impact-of-bfr
#16
Alexander Franz, Fina Pauline Queitsch, Michael Behringer, Constantin Mayer, Rüdiger Krauspe, Christoph Zilkens
Osteoarthritis of the knee is one of the most commonly diagnosed joint ailments and responsible for increased rates of total knee arthroplasty surgeries worldwide. Whereas the surgical approach is able to diminish the perceived knee pain of concerned patients', the postoperative recovery is often accompanied by persistent skeletal muscle dysfunctions and atrophy, which is responsible for functional deficits for up to several years. Recent findings indicate that surgery induced adverse effects on skeletal muscles are largely associated with the use of pneumatic tourniquets, wherefore several studies try to reduce tourniquet use in orthopedic surgery...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29316273/pilot-project-physiologic-responses-to-a-high-intensity-active-video-game-with-copd-patients-tools-for-home-rehabilitation
#17
Andrée-Anne Parent, Vincent Gosselin-Boucher, Marilyn Houle-Peloquin, Claude Poirier, Alain-Steve Comtois
INTRODUCTION: Chronic Obstructive Pulmonary Disease (COPD) is a respiratory condition that causes a significant deterioration of the quality of life. However, exercise can improve the quality of life for COPD patients and it is for this reason previous study observed the effects of active video games to increase exercise. Using motion capture devices with short bursts of exercise never been tried with COPD patients. OBJECTIVES: The objective was to observe the feasibility of using this device safely and easily with COPD patients...
January 8, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29315892/effects-of-fasted-vs-fed-state-exercise-on-performance-and-post-exercise-metabolism-a-systematic-review-meta-analysis
#18
REVIEW
Tom P Aird, Robert W Davies, Brian P Carson
The effects of nutrition on exercise metabolism and performance remains an important topic among sports scientists, clinical, and athletic populations. Recently, fasted exercise has garnered interest as a beneficial stimulus which induces superior metabolic adaptations to fed exercise in key peripheral tissues. Conversely, pre-exercise feeding augments exercise performance compared with fasting conditions. Given these seemingly divergent effects on performance and metabolism, an appraisal of the literature is warranted...
January 6, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29314654/exercise-program-for-children-and-adolescents-with-leukemia-and-lymphoma-during-treatment-a-comprehensive-review
#19
REVIEW
Giulia Zucchetti, Francesca Rossi, Carolina Chamorro Vina, Nicoletta Bertorello, Franca Fagioli
An exercise program (EP) during cancer treatment seems to be a valid strategy against physiological and quality-of-life impairments, but scientific evidence of benefits among pediatric patients is still limited. This review summarizes the literature focused on randomized controlled trials of EP offered to patients during leukemia and lymphoma treatment. Studies published up to June 2017 were selected from multiple databases and assessed by three independent reviewers for methodological validity. The review identified eight studies, but several types of bias have to be avoided to provide evidence-based recommendations accessible to patients, families, and professionals...
January 4, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29308842/effectiveness-evaluation-of-whole-body-electromyostimulation-as-a-post-exercise-recovery-method
#20
Miguel A DE LA Camara, Ana I Pardos, Óscar L Veiga
BACKGROUND: Whole-body electromyostimulation (WB-EMS) devices are now being used in health and sports training, although there are few studies investigating their benefits. The objective of this research was to evaluate the effectiveness of WB-EMS as a post-exercise recovery method, and compare it with other methods like active and passive recovery. METHODS: The study included nine trained men (age = 21 ± 1years, height = 1.77 ± 0.4 m, mass = 62 ± 7 kg). Three trials were performed in three different sessions, 1 week apart...
January 4, 2018: Journal of Sports Medicine and Physical Fitness
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