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https://www.readbyqxmd.com/read/29182412/the-effect-of-water-loading-on-acute-weight-loss-following-fluid-restriction-in-combat-sports-athletes
#1
Reid Reale, Gary Slater, Ian C Dunican, Gregory R Cox, Louise M Burke
Novel methods of acute weight loss practiced by combat sport athletes include 'water loading’; the consumption of large fluid volumes for several days prior to restriction. We examined claims this technique increases total body water losses, while also assessing the risk of hyponatremia. Male athletes were separated into control (CON, n=10) and water loading (WL, n=11) groups and fed a standardised energy-matched diet for 6 days. Day 1-3 fluid intake was 40 mL·kg-1 and 100 mL·kg-1 for CON and WL, respectively with both groups consuming 15 mL·kg-1on Day 4 and following the same rehydration protocol on Days 5-6...
November 28, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29140154/no-difference-in-young-adult-athletes-resting-energy-expenditure-when-measured-under-inpatient-or-outpatient-conditions
#2
Julia L Bone, Louise M Burke
Low energy availability can place athletes at increased risk of injury and illness and can be detected by a low metabolic rate. The lowest metabolic rate is captured at the bedside, after an overnight fast and termed inpatient REE. Measurements done in a laboratory with a shorter overnight fast are termed outpatient REE. Although important to know what the lowest energy expenditure, a bedside measure and/or 12 h fast is not always practical or logistically possible particularly when you take into account an athlete's training schedule...
November 15, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29109686/ketone-diester-ingestion-impairs-time-trial-performance-in-professional-cyclists
#3
Jill J Leckey, Megan L Ross, Marc Quod, John A Hawley, Louise M Burke
We investigated the effect of pre- "race" ingestion of a 1,3-butanediol acetoacetate diester on blood ketone concentration, substrate metabolism and performance of a cycling time trial (TT) in professional cyclists. In a randomized cross-over design, 10 elite male cyclists completed a ~31 km laboratory-based TT on a cycling ergometer programmed to simulate the 2017 World Road Cycling Championships course. Cyclists consumed a standardized meal [2 g/kg body mass (BM) carbohydrate (CHO)] the evening prior to a trial day and a CHO breakfast (2 g/kg BM CHO) with 200 mg caffeine on the morning of a trial day...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29056598/prevalence-of-illness-poor-mental-health-and-sleep-quality-and-low-energy-availability-prior-to-the-2016-summer-olympic-games
#4
Michael Drew, Nicole Vlahovich, David Hughes, Renee Appaneal, Louise M Burke, Bronwen Lundy, Margot Rogers, Mary Toomey, David Watts, Gregory Lovell, Stephan Praet, Shona L Halson, Candice Colbey, Silvia Manzanero, Marijke Welvaert, Nicholas P West, David B Pyne, Gordon Waddington
OBJECTIVE: Establish the prevalence of illness symptoms, poor sleep quality, poor mental health symptoms, low energy availability and stress-recovery state in an Olympic cohort late in the 3 months prior to the Summer Olympic Games. METHODS: Olympic athletes (n=317) from 11 sports were invited to complete questionnaires administered 3 months before the Rio 2016 Olympic Games. These questionnaires included the Depression, Anxiety and Stress Questionnaire, Perceived Stress Scale, Dispositional Resilience Scale, Recovery-Stress Questionnaire (REST-Q-52 item), Low Energy Availability in Females Questionnaire (LEAF-Q), Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index and custom-made questionnaires on probiotic usage and travel...
October 22, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28872383/weight-management-practices-of-australian-olympic-combat-sport-athletes
#5
Reid Reale, Gary Slater, Louise M Burke
PURPOSE: Combat sport athletes undertake chronic and rapid weight loss (RWL) practices to qualify for weight divisions lower than their training weight. Variation between sports in the prevalence, methods, and magnitude of weight loss as well as recovery practices may be influenced by factors including competition level and culture. Differences in methodologies of previous research in combat sports make direct comparisons difficult, thus this study aimed to examine weight loss practices among all Olympic combat sports in Australia, using standardised methodology...
September 5, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28865259/current-margin-practice-and-effect-on-re-excision-rates-following-the-publication-of-the-sso-astro-consensus-and-abs-consensus-guidelines-a-national-prospective-study-of-2858-women-undergoing-breast-conserving-therapy-in-the-uk-and-ireland
#6
MULTICENTER STUDY
Sarah Shuk-Kay Tang, Sarantos Kaptanis, James B Haddow, Giuseppina Mondani, Beatrix Elsberger, Marios Konstantinos Tasoulis, Christine Obondo, Neil Johns, Wisam Ismail, Asim Syed, Panayioti Kissias, Mary Venn, Souganthy Sundaramoorthy, Gareth Irwin, Amtul S Sami, Dalia Elfadl, Alice Baggaley, Dionysios Dennis Remoundos, Fiona Langlands, Petros Charalampoudis, Zoe Barber, Werbena L S Hamilton-Burke, Ayesha Khan, Chiara Sirianni, Louise Anne-Marie Grant Merker, Sunita Saha, Risha Arun Lane, Sharat Chopra, Sophie Dupré, Aidan T Manning, Edward R St John, Aya Musbahi, Nokwanda Dlamini, Caitlin L McArdle, Chloe Wright, James O Murphy, Ravi Aggarwal, Matei Dordea, Karen Bosch, Donna Egbeare, Hisham Osman, Salim Tayeh, Faraz Razi, Javeria Iqbal, Serena F C Ledwidge, Vanessa Albert, Yazan Masannat
INTRODUCTION: There is variation in margin policy for breast conserving therapy (BCT) in the UK and Ireland. In response to the Society of Surgical Oncology and American Society for Radiation Oncology (SSO-ASTRO) margin consensus ('no ink on tumour' for invasive and 2 mm for ductal carcinoma in situ [DCIS]) and the Association of Breast Surgery (ABS) consensus (1 mm for invasive and DCIS), we report on current margin practice and unit infrastructure in the UK and Ireland and describe how these factors impact on re-excision rates...
October 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28806275/effects-of-creatine-and-carbohydrate-loading-on-cycling-time-trial-performance
#7
Kristyen A Tomcik, Donny M Camera, Julia L Bone, Megan L Ross, Nikki A Jeacocke, Bill Tachtsis, Joan Senden, Luc J C van Loon, John A Hawley, Louise M Burke
INTRODUCTION: Creatine- and carbohydrate-loading are dietary strategies used to enhance exercise capacity. This study examined the metabolic and performance effects of a combined creatine and CHO-loading regiment on time-trial (TT) cycling bouts. METHODS: Eighteen well-trained (~65mL[BULLET OPERATOR]kg[BULLET OPERATOR]min VO2peak) males completed three performance trials (PT) comprised of a 120-km cycling TT interspersed with alternating 1- and 4-km sprints (6 sprints each) performed every 10-km followed by an inclined ride to fatigue (~90% VO2peak)...
August 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28783446/dietary-nitrate-supplementation-does-not-improve-cycling-time-trial-performance-in-the-heat
#8
Georgina L Kent, Brian Dawson, Gregory R Cox, Louise M Burke, Annette Eastwood, Kevin D Croft, Peter Peeling
This investigation examined the effect of beetroot juice (BR) supplementation, a source of dietary nitrate (NO3(-)), on cycling time-trial (TT) performance and thermoregulation in the heat. In a double-blind, repeated-measures design, 12 male cyclists (age 26.6 ± 4.4 years, VO2peak 65.8 ± 5.5 mL.kg(-1).min(-1)) completed four cycling TTs (14 kJ.kg(-1)) in hot (35°C, 48% relative humidity) and euthermic (21°C, 52%) conditions, following 3 days supplementation with BR (6.5 mmol NO3(-) for 2 days and 13 mmol NO3(-) on the final day), or NO3(-)depleted placebo (PLA)...
August 7, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28625273/development-of-a-core-outcome-set-for-disease-modification-trials-in-mild-to-moderate-dementia-a-systematic-review-patient-and-public-consultation-and-consensus-recommendations
#9
Lucy Webster, Derek Groskreutz, Anna Grinbergs-Saull, Rob Howard, John T O'Brien, Gail Mountain, Sube Banerjee, Bob Woods, Robert Perneczky, Louise Lafortune, Charlotte Roberts, Jenny McCleery, James Pickett, Frances Bunn, David Challis, Georgina Charlesworth, Katie Featherstone, Chris Fox, Claire Goodman, Roy Jones, Sallie Lamb, Esme Moniz-Cook, Justine Schneider, Sasha Shepperd, Claire Surr, Jo Thompson-Coon, Clive Ballard, Carol Brayne, Orlaith Burke, Alistair Burns, Linda Clare, Peter Garrard, Patrick Kehoe, Peter Passmore, Clive Holmes, Ian Maidment, Fliss Murtagh, Louise Robinson, Gill Livingston
BACKGROUND: There is currently no disease-modifying treatment available to halt or delay the progression of the disease pathology in dementia. An agreed core set of the best-available and most appropriate outcomes for disease modification would facilitate the design of trials and ensure consistency across disease modification trials, as well as making results comparable and meta-analysable in future trials. OBJECTIVES: To agree a set of core outcomes for disease modification trials for mild to moderate dementia with the UK dementia research community and patient and public involvement (PPI)...
May 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28613913/hypersensitivity-pneumonitis-a-perspective-from-members-of-the-pulmonary-pathology-society
#10
Ross Miller, Timothy Craig Allen, Roberto J Barrios, Mary Beth Beasley, Louise Burke, Philip T Cagle, Vera Luiza Capelozzi, Yimin Ge, Lida P Hariri, Keith M Kerr, Andras Khoor, Brandon T Larsen, Eugene J Mark, Osamu Matsubara, Mitra Mehrad, Mari Mino-Kenudson, Kirtee Raparia, Anja Christiane Roden, Prudence Russell, Frank Schneider, Lynette M Sholl, Maxwell Lawrence Smith
CONTEXT: - Hypersensitivity pneumonitis (HP) is a lung disease that develops in susceptible individuals after inhalational exposure to an organic antigen or chemical compound. Pathogenesis is attributed to a combination of type III (immune complex-mediated) and type IV (delayed) hypersensitivity reactions to the inciting agent. OBJECTIVE: - To provide an overview of the current status of the medical literature regarding hypersensitivity pneumonitis. DATA SOURCES: - A literature search was performed using PubMed and Google search engines...
June 14, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28583617/totally-implantable-iv-treprostinil-therapy%C3%A2-in-pulmonary-hypertension-assessment-of-the-implantation-procedure
#11
Aaron B Waxman, Hugh T McElderry, Mardi Gomberg-Maitland, Martin C Burke, Edgar L Ross, Malcolm M Bersohn, Sanjog S Pangarkar, James H Tarver, Diane L Zwicke, Jeremy P Feldman, Murali M Chakinala, Robert P Frantz, Geoffrey B Thompson, Fernando Torres, Richard L Rauck, Kathy Clagg, Louise Durst, Pei Li, Marty Morris, Kara L Southall, Leigh Peterson, Robert C Bourge
BACKGROUND: Prostacyclins improve symptoms and survival in pulmonary arterial hypertension (PAH). In response to risks associated with external delivery systems, an implantable IV infusion system was developed. A multicenter, prospective, single-arm, clinical trial (DelIVery for PAH) was conducted to evaluate this system for treprostinil in PAH. This analysis describes the findings related to the implant procedure. METHODS: Patients (N = 64) with PAH (World Health Organization group 1) receiving stable IV treprostinil were enrolled...
June 3, 2017: Chest
https://www.readbyqxmd.com/read/28447834/perspectives-of-low-income-chronically-ill-patients-on-complex-care-management
#12
Alice Y Mao, Rachel Willard-Grace, Leslie Dubbin, Louise Aronson, Alicia Fernandez, Nancy J Burke, Julia Finch, Elizabeth Davis
INTRODUCTION: Low-income, chronically ill adults disproportionately experience poor health outcomes despite increased health care use and costs. Complex care management (CCM) programs are an innovative approach to improving outcomes for these patients, but little is known about the patients' experiences in CCM programs in safety net primary care settings. METHOD: The authors conducted semistructured interviews with 13 CCM participants in a safety net primary care clinic to explore their perceptions of their health and their experiences with CCM...
April 27, 2017: Families, Systems & Health: the Journal of Collaborative Family Healthcare
https://www.readbyqxmd.com/read/28410328/manipulation-of-muscle-creatine-and-glycogen-changes-dual-x-ray-absorptiometry-estimates-of-body-composition
#13
Julia L Bone, Megan L Ross, Kristyen A Tomcik, Nikki A Jeacocke, Will G Hopkins, Louise M Burke
Standardizing a dual x-ray absorptiometry (DXA) protocol is thought to provide a reliable measurement of body composition. PURPOSE: We investigated the effects of manipulating muscle glycogen and creatine content independently and additively on DXA estimates of lean mass. METHOD: Eighteen well-trained male cyclists undertook a parallel group application of creatine loading (n = 9) (20 g·d for 5 d loading; 3 g·d maintenance) or placebo (n = 9) with crossover application of glycogen loading (12 v 6 g·kg BM per day for 48 h) as part of a larger study involving a glycogen-depleting exercise protocol...
May 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28409396/factors-influencing-the-post-exercise-hepcidin-25-response-in-elite-athletes
#14
Peter Peeling, Alannah K A McKay, David B Pyne, Kym J Guelfi, Rachel H McCormick, Coby M Laarakkers, Dorine W Swinkels, Laura A Garvican-Lewis, Megan L R Ross, Avish P Sharma, Jill J Leckey, Louise M Burke
PURPOSE: The extent to which hepcidin regulation after acute bouts of exercise is influenced by baseline (resting) concentrations of key iron parameters remains uncertain. This investigation explored the influence of selected iron parameters and 25-km race walk time on 3-h post-exercise hepcidin-25 levels in international-level race walkers. METHODS: Twenty-four male race walkers completed a graded exercise test and a 25-km race-walk trial. Throughout the 25-km race-walk, venous blood samples were collected pre-exercise, immediately post-exercise, and at 3-h post-exercise...
June 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28387576/dietary-microperiodization-in-elite-female-and-male-runners-and-race-walkers-during-a-block-of-high-intensity-precompetition-training
#15
Ida A Heikura, Louise M Burke, Antti A Mero, Arja Leena Tuulia Uusitalo, Trent Stellingwerff
We investigated one week of dietary microperiodization in elite female (n = 23) and male (n = 15) runners and race-walkers by examining the frequency of training sessions and recovery periods conducted with recommended carbohydrate (CHO) and protein availability. Food and training diaries were recorded in relation to HARD (intense or >90min sessions; KEY) versus RECOVERY days (other-than KEY sessions; EASY). The targets for amount and timing of CHO and protein around KEY sessions were based on current nutrition recommendations...
August 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28385561/a-multifactorial-evaluation-of-illness-risk-factors-in-athletes-preparing-for-the-summer-olympic-games
#16
Michael K Drew, Nicole Vlahovich, David Hughes, Renee Appaneal, Kirsten Peterson, Louise Burke, Bronwen Lundy, Mary Toomey, David Watts, Gregory Lovell, Stephan Praet, Shona Halson, Candice Colbey, Silvia Manzanero, Marijke Welvaert, Nic West, David B Pyne, Gordon Waddington
OBJECTIVES: Illness can disrupt training and competition performance of athletes. Few studies have quantified the relative contribution of the known medical, behavioural and lifestyle risk factors. DESIGN: Cross-sectional. METHODS: Olympic athletes from 11 sports (n=221) were invited to complete questionnaires administered nine months before the Rio 2016 Olympic Games. These included the Depression, Anxiety and Stress Questionnaire (DASS-21), Perceived Stress Scale (PSS), Dispositional Resilience Scale (DRS), Recovery-Stress Questionnaire (REST-Q-52 item), Low Energy in Females Questionnaire (LEAF-Q), a modified Personal and Household Hygiene questionnaire, Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index, and custom-made questionnaires on probiotic usage and travel...
March 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28338358/a-mismatch-between-athlete-practice-and-current-sports-nutrition-guidelines-among-elite-female-and-male-middle-and-long-distance-athletes
#17
Ida A Heikura, Trent Stellingwerff, Antti A Mero, Arja Leena Tuulia Uusitalo, Louise M Burke
Contemporary nutrition guidelines promote a variety of periodized and time-sensitive recommendations, but current information regarding the knowledge and practice of these strategies among world-class athletes is limited. The aim of this study was to investigate this theme by implementing a questionnaire on dietary periodization practices in national/international level female (n = 27) and male (n = 21) middle- and long-distance runners/race-walkers. The questionnaire aimed to gain information on between and within-day dietary choices, as well as timing of pre- and posttraining meals and practices of training with low or high carbohydrate (CHO) availability...
August 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28332111/practical-issues-in-evidence-based-use-of-performance-supplements-supplement-interactions-repeated-use-and-individual-responses
#18
REVIEW
Louise M Burke
Current sports nutrition guidelines recommend that athletes only take supplements following an evidence-based analysis of their value in supporting training outcomes or competition performance in their specific event. While there is sound evidence to support the use of a few performance supplements under specific scenarios (creatine, beta-alanine, bicarbonate, caffeine, nitrate/beetroot juice and, perhaps, phosphate), there is a lack of information around several issues needed to guide the practical use of these products in competitive sport...
March 2017: Sports Medicine
https://www.readbyqxmd.com/read/28316263/individualised-dietary-strategies-for-olympic-combat-sports-acute-weight-loss-recovery-and-competition-nutrition
#19
REVIEW
Reid Reale, Gary Slater, Louise M Burke
Olympic combat sports separate athletes into weight divisions, in an attempt to reduce size, strength, range and/or leverage disparities between competitors. Official weigh-ins are conducted anywhere from 3 and up to 24 h prior to competition ensuring athletes meet weight requirements (i.e. have 'made weight'). Fighters commonly aim to compete in weight divisions lower than their day-to-day weight, achieved via chronic and acute manipulations of body mass (BM). Although these manipulations may impair health and absolute performance, their strategic use can improve competitive success...
July 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28301302/communicating-sports-science-in-the-age-of-the-twittersphere
#20
Louise M Burke
No abstract text is available yet for this article.
February 2017: International Journal of Sport Nutrition and Exercise Metabolism
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