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Overreaching

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https://www.readbyqxmd.com/read/29740346/can-sleep-be-used-as-an-indicator-of-overreaching-and-overtraining-in-athletes
#1
Michele Lastella, Grace E Vincent, Rob Duffield, Gregory D Roach, Shona L Halson, Luke J Heales, Charli Sargent
No abstract text is available yet for this article.
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29736188/ageing-and-exercise-building-body-capital-in-old-age
#2
Astrid Bergland, Marit Fougner, Anne Lund, Jonas Debesay
Background: Research that provides better understanding of the motivational processes in older age to maintain a healthy and active lifestyle is sought after. We apply theoretical approaches to cultural capital, active and healthy aging health to shed light on the women's experiences in maintaining physical capabilities through an active lifestyle, and thereby facilitating their own inclusion in society. Thus, the aim of this paper is to explore why older home dwelling women over the age of 70 years or more spend time in physical exercise and their experiences about the importance of participating in group exercise for their daily life...
2018: European Review of Aging and Physical Activity
https://www.readbyqxmd.com/read/29720045/protocol-for-a-prospective-collaborative-systematic-review-and-meta-analysis-of-individual-patient-data-from-randomized-controlled-trials-of-vasoactive-drugs-in-acute-stroke-the-blood-pressure-in-acute-stroke-collaboration-stage-3
#3
Else Charlotte Sandset, Nerses Sanossian, Lisa J Woodhouse, Craig Anderson, Eivind Berge, Kennedy R Lees, John F Potter, Thompson G Robinson, Nikola Sprigg, Joanna M Wardlaw, Philip M Bath
Rationale Despite several large clinical trials assessing blood pressure lowering in acute stroke, equipoise remains particularly for ischemic stroke. The "Blood pressure in Acute Stroke Collaboration" commenced in the mid-1990s focussing on systematic reviews and meta-analysis of blood pressure lowering in acute stroke. From the start, Blood pressure in Acute Stroke Collaboration planned to assess safety and efficacy of blood pressure lowering in acute stroke using individual patient data. Aims To determine the optimal management of blood pressure in patients with acute stroke, including both intracerebral hemorrhage and ischemic stroke...
January 1, 2018: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/29688096/experiences-of-an-internet-based-aural-rehabilitation-iar-program-for-hearing-aid-users-a-qualitative-study
#4
Milijana Malmberg, Elisabet Sundewall Thorén, Marie Öberg, Thomas Lunner, Gerhard Andersson, Kim Kähäri
OBJECTIVE: Internet interventions for hearing aid (HA) users have been shown to be effective in helping persons with hearing problems. As earlier research refers to objective data on these effects, little is known about how participants experience the Internet interventions subjectively. The aim of the present study was to explore participants' experiences of an Internet-based aural rehabilitation (IAR) program for HA-users, and to explore the possible subjective benefits of such a program...
April 24, 2018: International Journal of Audiology
https://www.readbyqxmd.com/read/29619798/seasonal-player-wellness-and-its-longitudinal-association-with-internal-training-load-study-in-elite-volleyball
#5
Filipe M Clemente, Bruno Mendes, José M Palao, André Silvério, Sandro Carriço, Francisco Calvete, Fábio Y Nakamura
BACKGROUND: Monitoring training load is critical to minimize the risk of overreaching, injury or illness. The purpose of this study was to assess the relationships and variance between perceived internal load and wellness status of elite male volleyball. METHODS: Thirteen elite volleyball players were studied during a full competitive season (nine months, 237 training sessions and 37 official matches). Perceived exertion, muscle soreness, stress, fatigue and sleep quality levels were daily measured using session RPE and the Hopper Questionnaire...
April 4, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29444097/the-effects-of-intensified-training-on-resting-metabolic-rate-rmr-body-composition-and-performance-in-trained-cyclists
#6
Amy L Woods, Anthony J Rice, Laura A Garvican-Lewis, Alice M Wallett, Bronwen Lundy, Margot A Rogers, Marijke Welvaert, Shona Halson, Andrew McKune, Kevin G Thompson
BACKGROUND: Recent research has demonstrated decreases in resting metabolic rate (RMR), body composition and performance following a period of intensified training in elite athletes, however the underlying mechanisms of change remain unclear. Therefore, the aim of the present study was to investigate how an intensified training period, designed to elicit overreaching, affects RMR, body composition, and performance in trained endurance athletes, and to elucidate underlying mechanisms. METHOD: Thirteen (n = 13) trained male cyclists completed a six-week training program consisting of a "Baseline" week (100% of regular training load), a "Build" week (~120% of Baseline load), two "Loading" weeks (~140, 150% of Baseline load, respectively) and two "Recovery" weeks (~80% of Baseline load)...
2018: PloS One
https://www.readbyqxmd.com/read/29397314/overload-blunts-baroreflex-only-in-overreached-athletes
#7
Nicolas Bourdillon, Sasan Yazdani, Masih Nilchian, Alessio Mariano, Jean-Marc Vesin, Grégoire P Millet
OBJECTIVES: Heart rate variability (HRV) is commonly used to diagnose overreaching and monitor athletes' responses to training. Baroreflex sensitivity (BRS) is modified by changes in training load and might be another means to detect overreaching. The goal of this study was to assess BRS and HRV changes in two groups of athletes responding either negatively (FOR) or positively (AF) to similar training overload. DESIGN: Fifteen athletes performed 2-week baseline (BSL) training followed by 3-week overload (+45%; OVL) and 2-week recovery (-20%; RCV)...
January 31, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29345524/recovery-and-performance-in-sport-consensus-statement
#8
Michael Kellmann, Maurizio Bertollo, Laurent Bosquet, Michel Brink, Aaron Coutts, Rob Duffield, Daniel Erlacher, Shona Halson, Anne Hecksteden, Jahan Heidari, Romain Meeusen, Iñigo Mujika, Claudio Robazza, Sabrina Skorski, Ranel Venter, Jürgen Beckmann
The relationship between recovery and fatigue and its impact on performance has attracted the interest of sports science for many years. An adequate balance between stress (training and competition load, other life demands) and recovery is essential for athletes to achieve continuous high-level performance. Research has focused on the examination of physiological and psychological recovery strategies to compensate external and internal training and competition loads. A systematic monitoring of recovery and the subsequent implementation of recovery routines aims at maximizing performance and preventing negative developments such as underrecovery, non-functional overreaching, the overtraining syndrome, injuries, or illnesses...
January 18, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29331586/positive-effects-of-total-recovery-period-on-anti-and-pro-inflammatory-cytokines-are-not-linked-to-performance-re-establishment-in-overtrained-mice
#9
Alisson L da Rocha, Ana P Pinto, Bruno C Pereira, Eike B Kohama, Gustavo P Morais, Larissa G de Vicente, José R Pauli, Dennys E Cintra, Eduardo R Ropelle, Leandro P de Moura, Hugo T Filho, Adelino S R da Silva
The association between excessive training sessions (i.e., overtraining/OT) and periods of inadequate recovery is linked to the nonfunctional overreaching (NFOR) state, which is defined as an unexplained decrement or stagnation of performance. The cytokine hypothesis of OT considers that pro-inflammatory cytokines are responsible by the NFOR state-induced performance decrement. Investigations using rodent models of OT verified increased levels of pro-inflammatory cytokines in hypothalamus, liver, serum and skeletal muscle samples...
March 2018: Cytokine
https://www.readbyqxmd.com/read/29298727/mandatory-vaccination-understanding-the-common-good-in-the-midst-of-the-global-polio-eradication-campaign
#10
Lawrence O Gostin
BACKGROUND: The detection of wild poliovirus in Israeli sewage in May 2013 led the health authorities to vaccinate children with OPV (Oral Polio Vaccine). Shelly Kamin-Friedman explored the legal and ethical dimensions of this policy. This commentary makes three claims: (1) Mandatory vaccination is a valid exercise of the state's police powers to protect the common good. (2) A disease eradication campaign is a sufficient ground for the exercise of those powers. (3) The state is obliged to use the least restrictive/invasive measure to achieve community-wide vaccine coverage, but need not use less effective measures; further, determining which measure is most effective is a fact-specific determination...
January 3, 2018: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/29163473/treadmill-slope-modulates-inflammation-fiber-type-composition-androgen-and-glucocorticoid-receptors-in-the-skeletal-muscle-of-overtrained-mice
#11
Alisson L da Rocha, Bruno C Pereira, Giovana R Teixeira, Ana P Pinto, Fabiani G Frantz, Lucila L K Elias, Fábio S Lira, José R Pauli, Dennys E Cintra, Eduardo R Ropelle, Leandro P de Moura, Rania A Mekary, Ellen C de Freitas, Adelino S R da Silva
Overtraining (OT) may be defined as an imbalance between excessive training and adequate recovery period. Recently, a downhill running-based overtraining (OTR/down) protocol induced the nonfunctional overreaching state, which is defined as a performance decrement that may be associated with psychological and hormonal disruptions and promoted intramuscular and systemic inflammation. To discriminate the eccentric contraction effects on interleukin 1beta (IL-1β), IL-6, IL-10, IL-15, and SOCS-3, we compared the release of these cytokines in OTR/down with other two OT protocols with the same external load (i...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29035592/returners-exhibit-greater-jumping-performance-improvements-during-a-peaking-phase-compared-to-new-players-on-a-volleyball-team
#12
Caleb D Bazyler, Satoshi Mizuguchi, Ashley A Kavanaugh, John J McMahon, Paul Comfort, Michael H Stone
PURPOSE: To determine if jumping performance changes during a peaking phase differed between returners and new players in a female collegiate volleyball team and to determine which variables best explained the variation in performance changes. METHODS: Fourteen volleyball players were divided into two groups: returners (n=7) and new players (n=7) who completed a 5-week peaking phase prior to conference championships. Players were tested at baseline prior to the pre-season on measures of vastus lateralis cross-sectional area using ultrasonography, estimated back squat one repetition maximum (1-RM), and countermovement jump height (JH) and relative peak power (PPa) on a force platform...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29035591/effect-of-intensified-endurance-training-on-pacing-and-performance-in-4000m-cycling-time-trials
#13
Alice M Wallett, Amy L Woods, Nathan G Versey, Laura A Garvican-Lewis, Marijke Welvaert, Kevin G Thompson
Studies examining pacing strategies during 4000m cycling time-trials (TTs) typically ensure participants are not pre-fatigued, however competitive cyclists often undertake TTs when already pre-fatigued. This study aimed to determine how TT pacing strategies and sprint characteristics of cyclists change during an intensified training period (mesocycle). Thirteen cyclists, regularly competing in A and B grade cycling races and consistently training (>10 h·wk-1 for 4±1 years), completed a six-week training mesocycle...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28989528/outbreak-column-20-are-outbreaks-man-made-disasters-that-display-intertwined-errors-of-human-judgement-and-behaviour
#14
Evonne T Curran
Man-made disasters are reported to have five intertwined errors of human judgement and behaviour. As outbreaks are essentially man-made disasters, the cited intertwined errors of engineering overreach, smooth sailing fallacy, insider view, risk-seeking incentives and social-herding were looked for in five notable outbreaks of Clostridium difficile infection. Engineering overreach was found to be the most identifiable error. The purpose of this reflective exercise was to turn hindsight into foresight and determine the intertwined levels of safety behaviour needed to prevent any future pathogen emerging to produce healthcare disasters...
July 2017: Journal of Infection Prevention
https://www.readbyqxmd.com/read/28952829/mental-fatigue-and-physical-and-cognitive-performance-during-a-two-bout-exercise-test
#15
Susan Vrijkotte, Romain Meeusen, Cloe Vandervaeren, Luk Buyse, Jeroen van Cutsem, Nathalie Pattyn, Bart Roelands
PURPOSE: The two bout exercise protocol has been developed to diagnose non-functional overreaching (NFO) and the 'Overtraining Syndrome' (OTS). It consists of two maximal exercise bouts separated by 4 hours. Mental fatigue negatively influences performance but the effects of its occurrence during the two bout exercise protocol have never been investigated. The aim of this study was to examine whether mental fatigue (induced during the rest period) influences physical and cognitive performance during/after the second exercise bout of the two bout exercise protocol...
September 27, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28936887/interpretation-of-correlations-in-clinical-research
#16
REVIEW
Man Hung, Jerry Bounsanga, Maren Wright Voss
BACKGROUND: Critically analyzing research is a key skill in evidence-based practice and requires knowledge of research methods, results interpretation, and applications, all of which rely on a foundation based in statistics. Evidence-based practice makes high demands on trained medical professionals to interpret an ever-expanding array of research evidence. OBJECTIVE: As clinical training emphasizes medical care rather than statistics, it is useful to review the basics of statistical methods and what they mean for interpreting clinical studies...
November 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28915865/informed-consent-and-registry-based-research-the-case-of-the-danish-circumcision-registry
#17
Thomas Ploug, Søren Holm
BACKGROUND: Research into personal health data holds great potential not only for improved treatment but also for economic growth. In these years many countries are developing policies aimed at facilitating such research often under the banner of 'big data'. A central point of debate is whether the secondary use of health data requires informed consent if the data is anonymised. In 2013 the Danish Minister of Health established a new register collecting data about all ritual male childhood circumcisions in Denmark...
September 15, 2017: BMC Medical Ethics
https://www.readbyqxmd.com/read/28912725/enhanced-strength-and-sprint-levels-and-changes-in-blood-parameters-during-a-complete-athletics-season-in-800-m-high-level-athletes
#18
Beatriz Bachero-Mena, Fernando Pareja-Blanco, Juan J González-Badillo
The purpose of this study was to analyze changes in sprint, strength, hematological, and hormonal parameters in high-level 800 m athletes during a complete athletics season. Thirteen male athletes of national and international level in 800 m (personal best ranging from 1:43 to 1:58 min:ss) participated in this study. A total of 5 tests were conducted during a complete athletics season. Athletes performed sprint tests (20 and 200 m), countermovement jump (CMJ), jump squat (JS), and full squat (SQ) tests. Blood samples (red and white blood profile) and hormones were collected in test 1 (T1), test 3 (T3), and test 5 (T5)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28872374/changes-in-choice-reaction-time-during-and-after-8-days-exhaustive-cycling-are-not-related-to-changes-in-physical-performance
#19
Twan Ten Haaf, Selma van Staveren, Danilo Iannetta, Bart Roelands, Romain Meeusen, Maria F Piacentini, Carl Foster, Leo Koenderman, Hein A M Daanen, Jos J de Koning
PURPOSE: Reaction time has been proposed as a training monitoring tool, but to date results are equivocal. Therefore, it was investigated whether reaction time can be used as a monitoring tool to establish overreaching. METHODS: The study included 30 subjects (11 female/19 male, age: 40.8±10.8 y, VO2max: 51.8±6.3 ml/kg/min) who participated in an 8-day cycling event. The external exercise load increased approximately 900% compared to the preparation period. Performance was measured before and after the event using a maximal incremental cycling test...
September 5, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28756009/flaws-in-the-lnt-single-hit-model-for-cancer-risk-an-historical-assessment
#20
REVIEW
Edward J Calabrese
The LNT single-hit model was derived from the Nobel Prize-winning research of Herman J. Muller who showed that x-rays could induce gene mutations in Drosophila and that the dose response for these so-called mutational events was linear. Lewis J. Stadler, another well-known and respected geneticist at the time, strongly disagreed with and challenged Muller's claims. Detailed evaluations by Stadler over a prolonged series of investigations revealed that Muller's experiments had induced gross heritable chromosomal damage instead of specific gene mutations as had been claimed by Muller at his Nobel Lecture...
October 2017: Environmental Research
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