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Intermittent training

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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/28685305/an-automated-self-learning-quantification-system-to-identify-visible-areas-in-capsule-endoscopy-images
#9
Shinichi Hashimoto, Hiroyuki Ogihara, Masato Suenaga, Yusuke Fujita, Shuji Terai, Yoshihiko Hamamoto, Isao Sakaida
Visibility in capsule endoscopic images is presently evaluated through intermittent analysis of frames selected by a physician. It is thus subjective and not quantitative. A method to automatically quantify the visibility on capsule endoscopic images has not been reported. Generally, when designing automated image recognition programs, physicians must provide a training image; this process is called supervised learning. We aimed to develop a novel automated self-learning quantification system to identify visible areas on capsule endoscopic images...
August 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28680108/behavioral-inefficiency-on-a-risky-decision-making-task-in-adulthood-after-adolescent-intermittent-ethanol-exposure-in-rats
#10
Kelsey M Miller, Mary-Louise Risher, Shawn K Acheson, Matthew Darlow, Hannah G Sexton, Nicole Schramm-Sapyta, H S Swartzwelder
Adolescence is a period of development in neural circuits that are critical for adult functioning. There is a relationship between alcohol exposure and risky decision-making, though the enduring effects of adolescent ethanol exposure on risky decision-making in adulthood have not been fully explored. Studies using positive reinforcement have shown that adolescent intermittent ethanol (AIE) exposure results in higher levels of risky decision-making in adulthood, but the effects of AIE on punishment-mediated decision-making have not been explored...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28674601/physiological-characteristics-of-projected-starters-and-non-starters-in-the-field-positions-from-a-division-i-women-s-soccer-team
#11
Fabrice G Risso, Farzad Jalilvand, Ashley J Orjalo, Matthew R Moreno, Deshaun L Davis, Samantha A Birmingham-Babauta, John J Stokes, Alyssa A Stage, Tricia M Liu, Dominic V Giuliano, Adrina Lazar, Robert G Lockie
NCAA soccer features different substitution rules compared to FIFA-sanctioned matches, with a greater availability of players who can enter the game. This could influence the physiological characteristics of the field position starters (ST) and non-starters (NST) within a collegiate women's team, which has not been previously analyzed. Thus, 22 field players from the same Division I women's soccer squad completed: vertical and standing broad jumps; 30-meter (m) sprint (0-5, 0-10, 0-30 m intervals); pro-agility and 60-yard shuttle; and the Yo-Yo Intermittent Recovery Test Level 1...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28662531/effects-of-in-season-explosive-strength-training-on-maximal-leg-strength-jumping-sprinting-and%C3%A2-intermittent-aerobic-performance-in-male-handball-athletes
#12
Souhail Hermassi, Mohamed Souhaiel Chelly, Georg Fieseler, Thomas Bartels, Stephan Schulze, Karl-Stefan Delank, Roy J Shephard, René Schwesig
Background Team handball is an intense ball sport with specific requirements on technical skills, tactical understanding, and physical performance. The ability of handball players to develop explosive efforts (e. g. sprinting, jumping, changing direction) is crucial to success. Objective The purpose of this pilot study was to examine the effects of an in-season high-intensity strength training program on the physical performance of elite handball players. Materials and methods Twenty-two handball players (a single national-level Tunisian team) were randomly assigned to a control group (CG; n = 10) or a training group (TG; n = 12)...
June 29, 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/28659281/diverse-roads-to-relapse-a-discriminative-cue-signaling-cocaine-availability-is-more-effective-in-renewing-cocaine-seeking-in-goal-trackers-than-sign-trackers-and-depends-on-basal-forebrain-cholinergic-activity
#13
Kyle K Pitchers, Kyra B Phillips, Jonte L Jones, Terry E Robinson, Martin Sarter
Stimuli associated with taking drugs are notorious instigators of relapse. There is, however, considerable variation in the motivational properties of such stimuli, both as a function of the individual and the nature of the stimulus. The behavior of some individuals (sign-trackers, STs) is especially influenced by cues paired with reward delivery, perhaps because they are prone to process information via dopamine-dependent, cue-driven, incentive salience systems. Other individuals (goal-trackers, GTs) are better able to incorporate higher-order contextual information, perhaps because of better executive/attentional control over behavior, which requires frontal cortical cholinergic activity...
June 28, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28658081/the-positional-anthropometric-and-performance-profile-of-elite-gaelic-football-players
#14
Aidan Shovlin, Mark Roe, Shane Malone, Kieran Collins
The aim of the current investigation was to evaluate the variation in the anthropometric and performance characteristics of elite Gaelic football players with respect of position. One hundred and forty-eight elite Gaelic footballers underwent anthropometric (height, body mass, sum of seven skinfolds, % adipose tissue) and performance [counter movement jump height (CMJ), CMJ peak power, CMJ relative peak power, squat jump height (SJ), SJ peak power, SJ relative peak power, 5-, 10- and 20 m sprint times and Yo-Yo Intermittent Recovery Test Level 2 (Yo-YoIRT2)] during 'the early in-season' phase...
June 22, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28658078/comparison-of-incremental-intermittent-and-time-trial-testing-in-age-group-swimmers
#15
Rodrigo Zacca, Rui Azevedo, Ricardo Peterson Silveira, João Paulo Vilas-Boas, David B Pyne, Flávio A de S Castro, Ricardo J Fernandes
The aim of this study was to compare physiological and biomechanical characteristics between an incremental intermittent test and a time trial protocol in age-group swimmers. 11 national level age-group swimmers (6 male and 5 female) performed a 7 x 200-m incremental intermittent protocol (until exhaustion; 30 s rest) and a 400-m test (T400) in front crawl on separate days. Cardiorespiratory variables were measured continuously using a telemetric portable gas analyzer. Swimming speed, stroke rate, stroke length and stroke index were assessed by video analysis...
June 22, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28657854/differences-between-relative-and-absolute-speed-and-metabolic-thresholds-in-rugby-league
#16
Tannath J Scott, Heidi R Thornton, Macfarlane T U Scott, Ben J Dascombe, Grant M Duthie
PURPOSE: This study compared relative and absolute speed and metabolic thresholds for quantifying match output in elite rugby league. METHODS: Twenty-six professional players competing in the National Rugby League (NRL) were monitored with global positioning systems (GPS) across a rugby league season. Absolute speed [moderate-intensity running (MIRTh >3.6 m·s(-1)); high intensity running (HIRTh > 5.2 m·s(-1))] and metabolic (>20 W·kg(-1)) thresholds were compared to individualised ventilatory [first (VT1IFT), and second (VT2IFT)] thresholds estimated from the 30-15 intermittent fitness test (30-15IFT), as well as the metabolic threshold associated with VT2IFT (HPmetVT2), to examine difference in match-play demands...
June 28, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28655526/agreement-between-electronic-medical-records-and-self-reported-urologic-domains-in-the-national-spina-bifida-patient-registry-nsbpr-implications-for-future-research
#17
Christopher G Halline, Theresa Meyer, Ilina Rosoklija, Elizabeth B Yerkes
BACKGROUND: Self-report (SR) is an efficient data collection method. However, SR data have been shown to be discrepant with medical record (MR) documentation, which raises questions about using SR to supplement retrospective chart review in research. In this study, pediatric spina bifida (SB) patients who completed SR interviews about continence status and personal bladder/bowel management were identified. We examined agreement between SR data and Urology provider notes in MRs. OBJECTIVE: This study aimed to (1) identify demographic, medical, or methodological factors that might contribute to SR/MR disagreement; (2) postulate how these findings might be significant clinically; and (3) recommend improvements to SR data collection and MR documentation...
June 15, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28647595/intermittent-hypoxia-caused-cognitive-dysfunction-relate-to-mirnas-dysregulation-in-hippocampus
#18
Huabin Gao, Zhaoli Han, Shan Huang, Ruojing Bai, Xintong Ge, Fanglian Chen, Ping Lei
Intermittent hypoxia (IH) is a characteristic pathophysiological change of obstructive sleep apnea (OSA), a commonly diagnosed chronic sleep disorder. With the process of OSA, patients will suffer from the nervous system damage and appear to multiple cognitive dysfunction. The mechanism that how IH causes cognitive impairment is still unknown. Both control and experimental rats were placed in conditions absence and presence of intermittent hypoxia (IH) for 8h a day for a week, two weeks and four weeks, and then followed by behavioral assessments with Morris Water Maze (MWM) test...
June 21, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28639443/relationship-between-the-handball-specific-complex-test-nonspecific-field-tests-and-the-match-performance-score-in-elite-professional-handball-players
#19
Souhail Hermassi, Mohamed S Chelly, Rainer Wollny, Birgit Hoffmeyer, Georg Fieseler, Stephan Schulze, Lars Irlenbusch, Karl-Stefan Delank, Roy J Shephard, Thomas Bartels, René Schwesig
BACKGROUND: This study assessed the validity of the handball-specific complex-test (HBCT) and two nonspecific field tests in professional elite handball athletes, using the match performance score (MPS) as the gold standard of performance. METHODS: Thirteen elite male handball players (age: 27.4 ± 4.8 years; premier German league) performed the HBCT, the Yo-Yo Intermittent Recovery Test (Yo-Yo-IR1-test) and a repeated shuttle sprint ability (RSA) test at the beginning of pre-season training...
June 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28636482/impact-of-freeway-weaving-segment-design-on-light-duty-vehicle-exhaust-emissions
#20
Qing Li, Fengxiang Qiao, Lei Yu, Shuyan Chen, Tiezhu Li
In United States, 26% of greenhouse gas emissions is emitted from the transportation sector, which meanwhile accompanies with enormous toxic emissions to humans, such as CO, NOx, and HC, approximately 2.5% and 2.44% of a total exhaust emission for a petrol and diesel engine, respectively. These exhaust emissions are typically subject to vehicles' intermittent operations, such as hard acceleration and hard braking. In practice, drivers are inclined to operate intermittently while driving through a weaving segment, due to complex vehicle maneuvering for weaving...
June 21, 2017: Journal of the Air & Waste Management Association
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