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Intermittent training

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https://www.readbyqxmd.com/read/28813839/timing-of-intermittent-torque-control-with-wire-driven-gait-training-robot-lifting-toe-trajectory-for-trip-avoidance
#1
Tamon Miyake, Yo Kobayashi, Masakatsu G Fujie, Shigeki Sugano
Gait training robots are useful for changing gait patterns and decreasing risk of trip. Previous research has reported that decreasing duration of the assistance or guidance of the robot is beneficial for efficient gait training. Although robotic intermittent control method for assisting joint motion has been established, the effect of the robot intervention timing on change of toe clearance is unclear. In this paper, we tested different timings of applying torque to the knee, employing the intermittent control of a gait training robot to increase toe clearance throughout the swing phase...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28811138/intermittent-hypoxia-training-powerful-non-invasive-cerebroprotection-against-ethanol-withdrawal-excitotoxicity
#2
REVIEW
Marianna E Jung, Robert T Mallet
Ethanol intoxication and withdrawal exact a devastating toll on the central nervous system. Abrupt ethanol withdrawal provokes massive release of the excitatory neurotransmitter glutamate, which over-activates its postsynaptic receptors, causing intense Ca(2+) loading, p38 mitogen activated protein kinase activation and oxidative stress, culminating in ATP depletion, mitochondrial injury, amyloid β deposition and neuronal death. Collectively, these mechanisms produce neurocognitive and sensorimotor dysfunction that discourages continued abstinence...
August 12, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28797398/right-middle-lobe-collapse-and-pleural-effusion-in-an-18-year-old-man
#3
Joshua Patterson, David Graham, Alan George, Micah Will, Deena Sutter
An 18-year-old African American male subject presented to an acute care clinic with 3 days of productive cough, chills, pleuritic right chest pain, sore throat with hoarseness, congestion, and intermittent shortness of breath. He recently relocated to Texas from Georgia to undergo basic military training. He denied any other recent travel or contact with persons with pulmonary TB or other respiratory illnesses. His medical history was significant for glucose-6-phosphate dehydrogenase deficiency and sickle cell trait...
August 2017: Chest
https://www.readbyqxmd.com/read/28795112/real-time-fmri-data-for-testing-opennft-functionality
#4
Yury Koush, John Ashburner, Evgeny Prilepin, Ronald Sladky, Peter Zeidman, Sergei Bibikov, Frank Scharnowski, Artem Nikonorov, Dimitri Van De Ville
Here, we briefly describe the real-time fMRI data that is provided for testing the functionality of the open-source Python/Matlab framework for neurofeedback, termed Open NeuroFeedback Training (OpenNFT, Koush et al. [1]). The data set contains real-time fMRI runs from three anonymized participants (i.e., one neurofeedback run per participant), their structural scans and pre-selected ROIs/masks/weights. The data allows for simulating the neurofeedback experiment without an MR scanner, exploring the software functionality, and measuring data processing times on the local hardware...
October 2017: Data in Brief
https://www.readbyqxmd.com/read/28771487/cardiorespiratory-dynamics-measured-from-continuous-ecg-monitoring-improves-detection-of-deterioration-in-acute-care-patients-a-retrospective-cohort-study
#5
Travis J Moss, Matthew T Clark, James Forrest Calland, Kyle B Enfield, John D Voss, Douglas E Lake, J Randall Moorman
BACKGROUND: Charted vital signs and laboratory results represent intermittent samples of a patient's dynamic physiologic state and have been used to calculate early warning scores to identify patients at risk of clinical deterioration. We hypothesized that the addition of cardiorespiratory dynamics measured from continuous electrocardiography (ECG) monitoring to intermittently sampled data improves the predictive validity of models trained to detect clinical deterioration prior to intensive care unit (ICU) transfer or unanticipated death...
2017: PloS One
https://www.readbyqxmd.com/read/28771098/physical-preparation-recommendations-for-elite-rugby-sevens-performance
#6
Jake Schuster, Dan Howells, Julien Robineau, Anthony Couderc, Alex Natera, Nick Lumley, Tim J Gabbett, Nick Winkelman
Rugby Sevens, a new Olympic sport, features high intensity intermittent running and contact efforts over short match durations, normally six times across two to three days in a tournament format. Elite Rugby Sevens seasons often include over a dozen competitive tournaments across less than nine months, demanding deliberate and careful training-stress balance and workload management alongside development of the necessary physical qualities required for competition. Focus on running and repeated power skills, strength, and match-specific conditioning capacities is advised...
August 3, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28763443/intermittent-hypoxic-training-improves-anaerobic-performance-in-competitive-swimmers-when-implemented-into-a-direct-competition-mesocycle
#7
Miłosz Czuba, Robert Wilk, Jakub Karpiński, Małgorzata Chalimoniuk, Adam Zajac, Józef Langfort
The main objective of this research was to evaluate the efficacy of intermittent hypoxic training (IHT) on anaerobic and aerobic capacity and swimming performance in well-trained swimmers. Sixteen male swimmers were randomly divided into a hypoxia (H) group (n = 8), which trained in a normobaric hypoxia environment, and a control (C) group (n = 8), which exercised under normoxic conditions. However, one participant left the study without explanation. During the experiment group H trained on land twice per week in simulated hypoxia (FiO2 = 15...
2017: PloS One
https://www.readbyqxmd.com/read/28762914/-adaptation-to-intermittent-hypoxia-hyperoxia-in-the-rehabilitation-of-patients-with-ischemic-heart-disease-exercise-tolerance-and-quality-of-life
#8
A L Syrkin, O S Glazachev, F Y Kopylov, E N Dudnik, E E Zagaynaya, D S Tuter
AIM: to assess effect of interval hypoxic-hyperoxic training (IT) on exercise tolerance and quality of life of patients with ischemic heart disease (IHD) receiving optimal medical therapy, as well as the safety of IHHT use. METHODS: Patients with stable IHD with functional class II and III angina (n=46) were randomized into two groups: IHHT (n=27, 15 treatments in 3 weeks), and IHHT imitation (n=19). Cardiopulmonary stress test was performed to evaluate the following parameters of exercise tolerance: peak oxygen consumption (VO2peak, VO2peak/kg), % of predicted peak oxygen consumption (%VO2 peak) and anaerobic threshold (VO2AT)...
May 2017: Kardiologiia
https://www.readbyqxmd.com/read/28758418/intermittent-hypoxia-training-in-prediabetes-patients-beneficial-effects-on-glucose-homeostasis-hypoxia-tolerance-and-gene-expression
#9
Tetiana V Serebrovska, Alla G Portnychenko, Tetiana I Drevytska, Vladimir I Portnichenko, Lei Xi, Egor Egorov, Anna V Gavalko, Svitlana Naskalova, Valentina Chizhova, Valeriy B Shatylo
The present study aimed at examining beneficial effects of intermittent hypoxia training (IHT) under prediabetic conditions. We investigate the effects of three-week IHT on blood glucose level, tolerance to acute hypoxia, and leukocyte mRNA expression of hypoxia inducible factor 1α (HIF-1α) and its target genes, i.e. insulin receptor, facilitated glucose transporter-solute carrier family-2, and potassium voltage-gated channel subfamily J. Seven healthy and 11 prediabetic men and women (44-70 years of age) were examined before, next day and one month after three-week IHT (3 sessions per week, each session consisting 4 cycles of 5-min 12% O2 and 5-min room air breathing)...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28753742/stress-facilitates-the-development-of-cognitive-dysfunction-after-chronic-ethanol-exposure
#10
Ellen M Rodberg, Carolina R den Hartog, Rachel I Anderson, Howard C Becker, David E Moorman, Elena M Vazey
BACKGROUND: Chronic exposure to stress or alcohol can drive neuroadaptations that alter cognition. Alterations in cognition may contribute to alcohol use disorders by reducing cognitive control over drinking and maintenance of abstinence. Here we examined effects of combined ethanol (EtOH) and stress exposure on prefrontal cortex (PFC)-dependent cognition. METHODS: Adult male C57BL/6J mice were trained to drink EtOH (15%, v/v) on a 1 h/d 1-bottle schedule. Once stable, mice were exposed to cycles of chronic intermittent EtOH (CIE) or air-control vapor exposure (Air), followed by test cycles of 1 h/d EtOH drinking...
July 28, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28746245/the-physical-and-physiological-demands-of-elite-international-female-field-hockey-players-during-competitive-match-play
#11
Aideen McGuinness, Shane Malone, George Petrakos, Kieran Collins
The aim of the current investigation was to quantify the physical and physiological demands of elite international female field hockey match-play across halves of play. Thirty-eight participants (24 ± 5 years; 173 ± 5 cm; 72 ± 5 kg) took part in nineteen competitive matches during the 2014 - 2015 season. Participants were monitored with GPS technology and heart rate monitors. Players were categorized based on three different playing positions. Activity was categorized into total (m), high-speed running distance (m; >16 km·h) and relative distance (m·min) due to the use of rolling substitutions...
July 24, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28735949/hip-flexor-muscle-dysfunction-during-walking-at-self-selected-and-fast-speed-in-patients-with-aortoiliac-peripheral-arterial-disease
#12
COMPARATIVE STUDY
Takaaki Kakihana, Osamu Ito, Yusuke Sekiguchi, Daisuke Ito, Hitoshi Goto, Daijirou Akamatsu, Yasuharu Matsumoto, Masahiro Kohzuki
OBJECTIVE: Intermittent claudication aggravates physical function and is associated with an increased risk of death in patients with peripheral arterial disease (PAD). Previous studies on kinetic parameters (joint moment and power) of lower limbs in these patients have largely focused on the decline in the ankle plantar flexor moment and power at self-selected (SS) walking speed, which may not be an optimal condition to induce claudication pain. In the present study, we investigated the abnormalities in joint kinetic parameters in patients with PAD at both SS and at fast walking speeds...
August 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28728559/effect-of-insulin-therapy-and-dietary-adjustments-on-safety-and-performance-during-simulated-soccer-tests-in-people-with-type-1-diabetes-study-protocol-for-a-randomized-controlled-trial
#13
Javier Calvo-Marín, Gabriel Torrealba-Acosta, Matthew Campbell, Jesse Gaboury, Ajmol Ali, Chih Hao Chen-Ku
BACKGROUND: Despite the reduction in glycemic derangement in patients with type 1 diabetes mellitus (T1D) through dietary and therapeutic adjustments implemented before, during and after continuous exercise, evidence for its effectiveness with intermittent forms of exercise, such as soccer, is still lacking. METHODS/DESIGN: We designed a study protocol for a randomized, crossover, double-blinded, controlled trial, for the evaluation of the effect that a strategy of dietary and therapeutic modifications may have on safety and performance of persons with T1D in soccer training sessions and cognitive testing...
July 20, 2017: Trials
https://www.readbyqxmd.com/read/28725939/escalated-cocaine-binges-in-rats-enduring-effects-of-social-defeat-stress-or-intra-vta-crf
#14
Michael Z Leonard, Joseph F DeBold, Klaus A Miczek
RATIONALE: Exposure to intermittent social defeat stress elicits corticotropin releasing factor (CRF) release into the VTA and induces long-term modulation of mesocorticolimbic dopamine activity in rats. These adaptations are associated with an intense cocaine-taking phenotype, which is prevented by CRF receptor antagonists. OBJECTIVE: The present studies examine whether infusion of CRF into the VTA is sufficient to escalate cocaine-taking behavior, in the absence of social defeat experience...
July 18, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28723843/no-superior-adaptations-to-carbohydrate-periodization-in-elite-endurance-athletes
#15
Kasper Degn Gejl, Line Thams, Mette Hansen, Torben Rokkedal-Lausch, Peter Plomgaard, Lars Nybo, Filip J Larsen, Daniele A Cardinale, Kurt Jensen, Hans-Christer Holmberg, Kristian Vissing, Niels Ørtenblad
PURPOSE: The present study investigated the effects of periodic CHO restriction on endurance performance and metabolic markers in elite endurance athletes. METHODS: Twenty-six male elite endurance athletes (VO2max: 65.0 ml O2[BULLET OPERATOR]kg[BULLET OPERATOR]min) completed 4 weeks of regular endurance training, while matched and randomized into two groups training with (Low) or without (High) carbohydrate (CHO) manipulation three days a week. The CHO manipulation days consisted of a 1-hr high intensity bike session in the morning, recovery for 7 hrs while consuming isocaloric diets containing either high CHO (414±2...
July 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28723816/importance-of-physical-qualities-for-speed-and-change-of-direction-ability-in-elite-female-soccer-players
#16
Stacey Emmonds, G Nicholson, C Beggs, B Jones, A Bissas
The purpose of this study was to determine the importance of physical qualities for speed and change of direction (CoD) ability in female soccer players. Data were collected on 10 female soccer players who were part of a professional English Women's Super League team. Player assessments included anthropometric (stature and body mass), body composition (dual-energy X-ray absorptiometry), speed (10m, 30m sprint), CoD ability (505 agility), aerobic (Yo-Yo Intermittent Recovery Test), lower-body strength (bilateral knee extensions) and power (countermovement jump [CMJ], squat jump [SJ], 30cm drop jump [DJ]) measures...
July 17, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28719491/greater-effect-of-east-vs-west-travel-on-jet-lag-sleep-and-team-sport-performance
#17
Peter M Fowler, Wade Knez, Stephen Crowcroft, Amy E Mendham, Joanna Miller, Charlie Sargent, Shona Halson, Rob Duffield
PURPOSE: Determine the recovery timeline of sleep, subjective jet-lag and fatigue, and team-sport physical performance following east and west long-haul travel. METHODS: Ten, physically-trained males underwent testing at 09:00 (AM) and 17:00 (PM) local time on four consecutive days two weeks prior to outbound travel (BASE), and the first four days following 21 h of outbound (WEST) and return (EAST) air travel across eight time-zones between Australia and Qatar. Data collection included performance (countermovement jump [CMJ], 20-m sprint and Yo-Yo Intermittent Recovery level 1 [YYIR1] test) and perceptual (jet-lag, motivation, perceived exertion and physical feeling) measures...
July 17, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28715597/the-proposal-of-a-clinical-protocol-to-assess-central-and-peripheral-fatigue-in-myotonic-dystrophy-type-1
#18
S Baldanzi, G Ricci, M Bottari, L Chico, C Simoncini, G Siciliano
DM1 is an autosomal-dominant disorder characterized by muscle weakness, myotonia, and multisystemic involvement. According to current literature fatigue and daytime sleepiness are among the main symptoms of DM1. Oxidative stress has been proposed to be one of the pathogenic factors of fatigue consequent to DM1. In this study, we investigated the dimensions of experienced fatigue and  physiological fatigue in a sample of 26 DM1 patients (17 males, 9 females, mean age 41.6 years, SD±12.7); experienced fatigue has been studied through Fatigue Severity Scale (FSS), and physiological fatigue was measured through an intermittent incremental exercise of the forearm muscles using a myometer; oxidative stress balance markers trend during aerobic exercise test have been collected...
July 1, 2017: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/28704219/inflammaging-and-the-age-specific-responsiveness-to-stretch-shortening-contractions
#19
Erik P Rader, Brent A Baker
With aging, muscle injury from rapid, continuous stretch-shortening contractions (SSCs) is prolonged and maladaptation to moderate-velocity, intermittent SSCs is more common. We investigate the hypothesis that high baseline levels of inflammatory signaling and oxidative stress may underlie these outcomes, while careful modulation of high-intensity SSC training design resets basal conditions and permits muscle adaptation to SSCs.
July 12, 2017: Exercise and Sport Sciences Reviews
https://www.readbyqxmd.com/read/28699850/the-effect-of-balance-training-intervention-on-postural-stability-in-children-with-asthma
#20
Zuzana Kovacikova, Katerina Neumannova, Jana Rydlova, Lucia Bizovská, Miroslav Janura
OBJECTIVE: Pulmonary rehabilitation is mainly focused on exercise training and breathing retraining in children with asthma. Conversely, balance training is not usually recommended for the treatment, although postural deficits were found in these patients. Therefore, this study assessed the effect of balance training intervention on postural stability in children with asthma. METHODS: Nineteen children with mild intermittent asthma (age 11.1 ± 2.1 years, height 147...
July 12, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
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