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https://www.readbyqxmd.com/read/28098640/sepsis-quality-improvement-initiatives-prepare-for-the-marathon-not-the-sprint
#1
Abhishek Bhardwaj, Mark E Mikkelsen
No abstract text is available yet for this article.
February 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28095597/recollection-bias-and-its-underpinnings-lessons-from-terrorism-risk-assessments
#2
W Kip Viscusi, Richard J Zeckhauser
Recollection bias is the phenomenon whereby people who observe a highly unexpected event hold current risk beliefs about a similar event that are no higher than their recollection of their prior beliefs. This article replicates and extends the authors' previous study of recollection bias in relation to individuals' perceptions of the risks of terrorism attacks. Over 60% of respondents in a national U.S. sample of over 900 adults believe that the current risk of a future terrorist attack by either an airplane or in a public setting is no higher than they recall having believed, respectively, before the 9/11 attack and before the Boston Marathon bombing...
January 17, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28052642/differences-in-age-of-peak-marathon-performance-between-mountain-and-city-marathon-running-the-%C3%A2-jungfrau-marathon%C3%A2-in-switzerland
#3
Beat Knechtle, Pantelis Theodoros Nikolaidis, Matthias Alexander Zingg, Thomas Rosemann, Christoph Alexander Rüst
The age of the best marathon performance has been well investigated for flat city marathon running, but not for mountain marathon running. The aim of this study was to determine the age of the best mountain marathon performance and to compare to results of a flat city marathon. Race times and ages of finishers of a mountain marathon with 1,830 m of altitude change (Jungfrau Marathon, Switzerland) and two flat city marathons (Lausanne Marathon and Zurich Marathon, Switzerland) were analysed using linear, non-linear and mixed-effects regression analyses...
28, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28028816/physiological-limits-to-endurance-exercise-performance-influence-of-sex
#4
Michael J Joyner
This brief review summarizes factors associated with elite endurance performance, trends in distance running training, and participation by men and more recently women. It is framed in the context of key ideas about the physiological determinants of endurance performance but also touches on some historical and sociological factors relevant to the overall topic. Historical trends that served to increase women's participation in elite endurance events are also discussed as is the role of increased volume and intensity of training...
December 28, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/28008008/spatiotemporal-antagonism-in-mesenchymal-epithelial-signaling-in-sweat-versus-hair-fate-decision
#5
Catherine P Lu, Lisa Polak, Brice E Keyes, Elaine Fuchs
The gain of eccrine sweat glands in hairy body skin has empowered humans to run marathons and tolerate temperature extremes. Epithelial-mesenchymal cross-talk is integral to the diverse patterning of skin appendages, but the molecular events underlying their specification remain largely unknown. Using genome-wide analyses and functional studies, we show that sweat glands are specified by mesenchymal-derived bone morphogenetic proteins (BMPs) and fibroblast growth factors that signal to epithelial buds and suppress epithelial-derived sonic hedgehog (SHH) production...
December 23, 2016: Science
https://www.readbyqxmd.com/read/28007336/the-combined-frequency-of-igf-and-myostatin-polymorphism-among-track-field-athletes-and-swimmers
#6
Sigal Ben-Zaken, Yoav Meckel, Dan Nemet, Alon Eliakim
OBJECTIVE: The IGF C-1245T (rs35767) and the myostatin (MSTN) Lys(K)-153Arg(R) genetic polymorphism may influence skeletal muscle phenotypes and athletic performance. Carrying the minor IGF T allele and the myostatin rare R allele was associated with higher circulating IGF-I levels, greater muscle mass and improved performance. The aim of the present study was to assess the combined frequency of the IGF 1245T (rs35767) and MSTN 153Arg(R) polymorphism among Israeli track and field athletes (n=111) and swimmers (n=80)...
December 15, 2016: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27967280/-an-imminent-sub-2-hours-marathon-is-unlikely-historical-trends-of-the-gender-gap-in-running-events
#7
Ross Tucker, Jordan Santos-Concejero
The aim of the present study was to analyse men's and women's world records across the full range of running disciplines to contextualise the recent debate about the possibility of a sub-2 hour marathon. The average male-female gap is currently 11.2 ± 1.0% for all running events. However, reducing the marathon time to below two hours would produce a performance 12.9% (+1.7 SD) faster than the women's marathon record. This gap would be greater than all current World Record differences, and would also require a reversal of medium and long-term historical trends in the men's and women's record differences...
December 14, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27939876/strategies-used-by-patients-with-type-1-diabetes-to-avoid-hypoglycemia-in-a-24%C3%A3-1-hour-marathon-comparison-with-the-amounts-of-carbohydrates-estimated-by-a-customizable-algorithm
#8
Alex Buoite Stella, Roberta Assaloni, Laura Tonutti, Elena Manca, Carla Tortul, Riccardo Candido, Maria Pia Francescato
OBJECTIVES: The preferred countermeasure to avoid exercise-related hypoglycemia was investigated in a group of patients with type 1 diabetes participating in a stressful event, a 24×1-hour relay marathon. The carbohydrates actually consumed were compared to those estimated for each patient by applying a customizable algorithm, Exercise Carbohydrates Requirement Estimating Software (ECRES), based on patient's usual therapy and diet and on the exercise characteristics. METHODS: Glycemia was tested at the start, middle and end of the races...
December 8, 2016: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/27936123/correction-myosin-light-chain-kinase-mlck-gene-influences-exercise-induced-muscle-damage-during-a-competitive-marathon
#9
Juan Del Coso, Marjorie Valero, Beatriz Lara, Juan José Salinero, César Gallo-Salazar, Francisco Areces
[This corrects the article DOI: 10.1371/journal.pone.0160053.].
2016: PloS One
https://www.readbyqxmd.com/read/27935994/comparison-of-polyethylene-wear-before-and-after-hip-revision-with-liner-exchange-fixed-with-the-original-locking-mechanism
#10
Xinfeng Gu, Jie He, Yiwen Tang, Yuxin Zheng
OBJECTIVE: To compare the wear of conventional ultra-high molecular weight polyethylene (CUHMWPE) and highly cross-linked polyethylene (HCLPE) in hip revision with liner exchange fixed with original locking mechanism using analysis of history medical data. METHODS: From Jan. 1, 2000, to Dec. 31, 2007, 26 patients (with 29 involved hips) underwent liner exchange revision fixed with the original locking mechanism due to wear of CUHMWPE and/or osteolysis. The mean age was 53 ± 9 years at the time of the primary total hip arthroplasty (THA) and 64 ± 9 years at the revision...
2016: PloS One
https://www.readbyqxmd.com/read/27935427/short-term-heat-acclimation-prior-to-a-multi-day-desert-ultra-marathon-improves-physiological-and-psychological-responses-without-compromising-immune-status
#11
Ashley G B Willmott, Mark Hayes, Kirsty A M Waldock, Rebecca L Relf, Emily R Watkins, Carl A James, Oliver R Gibson, Nicholas J Smeeton, Alan J Richardson, Peter W Watt, Neil S Maxwell
Multistage, ultra-endurance events in hot, humid conditions necessitate thermal adaptation, often achieved through short term heat acclimation (STHA), to improve performance by reducing thermoregulatory strain and perceptions of heat stress. This study investigated the physiological, perceptual and immunological responses to STHA prior to the Marathon des Sables. Eight athletes (age 42 ± 4 years and body mass 81.9 ± 15.0 kg) completed 4 days of controlled hyperthermia STHA (60 min·day(‒1), 45°C and 30% relative humidity)...
December 9, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27923330/the-influence-of-race-length-on-arterial-compliance-following-an-ultra-endurance-marathon
#12
Alis Bonsignore, Shannon S D Bredin, Holly Wollmann, Barb Morrison, Andrew Jeklin, Lauren Buschmann, Josh Robertson, Elizabeth Jean Buckler, Duncan McGuinty, Mark S Rice, Darren E R Warburton
There is inconclusive evidence concerning the effects of routine participation in ultra-endurance events on cardiovascular disease (CVD) risk. Arterial compliance is a reliable, non-invasive, and effective tool for evaluating CVD risk. The purpose of this research was to examine if race length influences acute changes in arterial compliance following an ultra-marathon event. A total of 46 ultra-marathon runners were recruited including 21 participants (39.8 ± 8.3 years, 6 females) in the 80-km event and 25 participants (43...
December 7, 2016: European Journal of Sport Science
https://www.readbyqxmd.com/read/27917543/is-motivation-for-marathon-a-protective-factor-or-a-risk-factor-of-injury
#13
A Chalabaev, R Radel, I Ben Mahmoud, B Massiera, T Deroche, F d'Arripe-Longueville
This research investigated whether and how self-determined motivation predicts perceived susceptibility to injury during competition (marathon). Two correlational studies including 378 (Study 1) and 339 (Study 2) marathon runners were conducted. Participants filled out a questionnaire the day before the race measuring self-determined motivation, perceived susceptibilities to marathon-related injury and to keep running through pain, and control variables. Study 1 showed that self-determined motivation was negatively related to perceived susceptibility to marathon-related injury...
December 5, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27911915/marathon-race-affects-neutrophil-surface-molecules-role-of-inflammatory-mediators
#14
Vinicius Coneglian Santos, Ana Paula Renno Sierra, Rodrigo Oliveira, Kim Guimarães Caçula, César Miguel Momesso, Fabio Takeo Sato, Maysa Braga Barros Silva, Heloisa Helena Oliveira, Maria Elizabeth Pereira Passos, Diego Ribeiro de Souza, Olivia Santos Gondim, Marino Benetti, Adriana Cristina Levada-Pires, Nabil Ghorayeb, Maria Augusta Peduti Dal Molin Kiss, Renata Gorjão, Tânia Cristina Pithon-Curi, Maria Fernanda Cury-Boaventura
The fatigue induced by marathon races was observed in terms of inflammatory and immunological outcomes. Neutrophil survival and activation are essential for inflammation resolution and contributes directly to the pathogenesis of many infectious and inflammatory conditions. The aim of this study was to investigate the effect of marathon races on surface molecules related to neutrophil adhesion and extrinsic apoptosis pathway and its association with inflammatory markers. We evaluated 23 trained male runners at the São Paulo International Marathon 2013...
2016: PloS One
https://www.readbyqxmd.com/read/27903541/lifelong-physical-activity-regardless-of-dose-is-not-associated-with-myocardial-fibrosis
#15
Shuaib M Abdullah, Kyler W Barkley, Paul S Bhella, Jeffrey L Hastings, Susan Matulevicius, Naoki Fujimoto, Shigeki Shibata, Graeme Carrick-Ranson, M Dean Palmer, Nainesh Gandhi, Laura F DeFina, Benjamin D Levine
BACKGROUND: Recent reports have suggested that long-term, intensive physical training may be associated with adverse cardiovascular effects, including the development of myocardial fibrosis. However, the dose-response association of different levels of lifelong physical activity on myocardial fibrosis has not been evaluated. METHODS AND RESULTS: Seniors free of major chronic illnesses were recruited from predefined populations based on the consistent documentation of stable physical activity over >25 years and were classified into 4 groups by the number of sessions/week of aerobic activities ≥30 minutes: sedentary (group 1), <2 sessions; casual (group 2), 2 to 3 sessions; committed (group 3), 4 to 5 sessions; and Masters athletes (group 4), 6 to 7 sessions plus regular competitions...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27902782/correction-shear-wave-elastography-assessments-of-quadriceps-stiffness-changes-prior-to-during-and-after-prolonged-exercise-a-longitudinal-study-during-an-extreme-mountain-ultra-marathon
#16
Pierre Andonian, Magalie Viallon, Caroline Le Goff, Charles de Bourguignon, Charline Tourel, Jérome Morel, Guido Giardini, Laurent Gergelé, Grégoire P Millet, Pierre Croisille
[This corrects the article DOI: 10.1371/journal.pone.0161855.].
2016: PloS One
https://www.readbyqxmd.com/read/27902708/goal-fluency-pessimism-and-disengagement-in-depression
#17
Joanne M Dickson, Nicholas J Moberly, Christian O'Dea, Matt Field
Despite the development of prominent theoretical models of goal motivation and its importance in daily life, research has rarely examined goal dysregulation processes in clinical depression. Here we aimed to investigate problematic aspects of goal regulation in clinically depressed adults, relative to controls. Depressed participants (n = 42) were recruited from two Improving Access to Psychological Therapy clinics in north-west England. Control participants (n = 51) were recruited from the same region. Participants generated personal approach goals (e...
2016: PloS One
https://www.readbyqxmd.com/read/27878382/ultra-marathon-100%C3%A2-km-in-an-islet-transplanted-runner
#18
Roberto Codella, Michela Adamo, Paola Maffi, Lorenzo Piemonti, Antonio Secchi, Livio Luzi
No abstract text is available yet for this article.
November 23, 2016: Acta Diabetologica
https://www.readbyqxmd.com/read/27877137/an-extreme-mountain-ultra-marathon-decreases-the-cost-of-uphill-walking-and-running
#19
Gianluca Vernillo, Aldo Savoldelli, Spyros Skafidas, Andrea Zignoli, Antonio La Torre, Barbara Pellegrini, Guido Giardini, Pietro Trabucchi, Grégoire P Millet, Federico Schena
Purpose: To examine the effects of the world's most challenging mountain ultramarathon (MUM, 330 km, cumulative elevation gain of +24,000 m) on the energy cost and kinematics of different uphill gaits. Methods: Before (PRE) and immediately after (POST) the competition, 19 male athletes performed three submaximal 5-min treadmill exercise trials in a randomized order: walking at 5 km·h(-1), +20%; running at 6 km·h(-1), +15%; and running at 8 km·h(-1), +10%. During the three trials, energy cost was assessed using an indirect calorimetry system and spatiotemporal gait parameters were acquired with a floor-level high-density photoelectric cells system...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27863044/exercise-for-healthy-flow
#20
EDITORIAL
P Hillmeister, E Buschmann, P B Persson, A Bondke Persson
No abstract text is available yet for this article.
January 2017: Acta Physiologica
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