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https://www.readbyqxmd.com/read/29028836/affected-pathways-and-transcriptional-regulators-in-gene-expression-response-to-an-ultra-marathon-trail-global-and-independent-activity-approaches
#1
Maria Maqueda, Emma Roca, Daniel Brotons, Jose Manuel Soria, Alexandre Perera
Gene expression (GE) analyses on blood samples from marathon and half-marathon runners have reported significant impacts on the immune and inflammatory systems. An ultra-marathon trail (UMT) represents a greater effort due to its more testing conditions. For the first time, we report the genome-wide GE profiling in a group of 16 runners participating in an 82 km UMT competition. We quantified their differential GE profile before and after the race using HuGene2.0st microarrays (Affymetrix Inc., California, US)...
2017: PloS One
https://www.readbyqxmd.com/read/29017856/planning-an-innovation-marathon-at-an-infectious-disease-conference-with-results-from-the-imed-2016-hackathon
#2
John W Ramatowski, Christopher Xiang Lee, Aikaterini Mantzavino, João Ribas, Winter Guerra, Nicholas D Preston, Eva Schernhammer, Lawrence C Madoff, Britta Lassmann
A hackathon is best described as an "innovation marathon." Derived from the words "hacking" and "marathon," it brings together multi-disciplinary teams to collaborate intensely over a short period of time to define a problem, devise a solution, and design a working prototype. International scientific meetings are conducive to successful hackathons, providing an audience of expert professionals who describe challenges and ensure the proposed solutions address end-user needs. Collaborations with local organizations and academic centers are crucial to attracting complementary specialties such as IT advisors, engineers, and entrepreneurs to develop sustainable projects...
October 7, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28978521/the-2-hour-marathon-what-do-students-think
#3
Steven J Elmer, Michael J Joyner, Jason R Carter
No abstract text is available yet for this article.
December 1, 2017: Advances in Physiology Education
https://www.readbyqxmd.com/read/28971422/sport-participation-and-ageing-evidence-from-marathon-events
#4
Konstantinos Koronios, Marina Mavromati, Athanasios Kriemadis, Eleni Leivaditi, Petros Kolovos, Andreas Papadopoulos
The purpose of this research is to study expectations regarding ageing (ERA) among individuals who participate in running events as well as to explore personality and demographic features as potential variables that influence ERA values. A quantitative questionnaire was selected as the predominant means of collecting the data and 196 successfully completed questionnaires were analyzed by means of the SPSS. Results indicate a positive correlation between ERA values and Change Seeker Index in our sample. Moreover gender and frequency of exercise found to have no significant effect on ERA score...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28966704/assessment-of-differences-in-the-anthropometric-physiological-and-training-characteristics-of-finishers-and-non-finishers-in-a-tropical-161-km-ultra-marathon
#5
Philip Ls Tan, Frankie Hy Tan, Andrew N Bosch
This study aimed to compare and determine the differences in the physiological, anthropometric and training characteristics of the finishers (FIN) and non-finishers (N-FIN) in a 161-km race. Two groups of runners (FIN; N=12 and N-FIN; N=14) completed a series of anthropometric and physiological measurements over two separate sessions at least three weeks prior to the race. Training sessions starting from six weeks prior to the race were recorded. Sum of 7 skinfolds, arm and calf girths, VO2max and peak treadmill speed (PTS) were taken during session 1 while the lactate threshold (LT) and running economy (RE) were assessed during session 2...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28955243/the-effect-of-a-100-km-ultra-marathon-under-freezing-conditions-on-selected-immunological-and-hematological-parameters
#6
Alena Žákovská, Beat Knechtle, Daniela Chlíbková, Marie Miličková, Thomas Rosemann, Pantelis T Nikolaidis
Although moderate exercise is beneficial for the human body and its immune system, exhaustive ultra-endurance performance in cold conditions might be harmful. The aim of this study was to examine the effect of a 100-km ultra-marathon under cold conditions (temperatures from -1°C to +1°C) on selected immunological, biochemical and hematological parameters. Participants were 15 runners (12 men and three women, age 40.3 ± 9.7 years, body mass 67.3 ± 9.0 kg and body height 1.74 ± 0.10 m, mean ± standard deviation)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28954563/applicability-of-consumer-activity-monitor-data-in-marathon-events-an-exploratory-study
#7
Valentino Constantinou, Ashley E Felber, Jennifer L Chan
Emerging opportunities to measure individual and population-level health data with activity monitors during recreational running activities may set the stage for new research possibilities in mass participation running events and marathon medicine. This study explores the applicability of consumer activity monitor data in a preliminary study for future marathon health research with a cohort of 12 (n = 12) participants completing a 3.379 km walking or running course. This study explored the feasibility of collecting pace and distance data from Fitbit brand consumer activity monitors, from access to user data to reporting of data characteristics and data analysis...
September 28, 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/28950695/pacing-profiles-in-age-group-cross-country-skiers-in-the-vasaloppet-2012-2016
#8
Pantelis T. Nikolaidis, Beat Knechtle
Little is known for pacing profiles in age groups cross-country skiers and the aim of the present study was to examine the effect of sex, age and calendar year on pacing strategies in the largest ski marathon in the world. All finishers (n = 66,435) in ‘Vasaloppet’ from 2012 to 2016 were examined for 12 different age groups (G). There was an association between age group and sex (χ² = 1091.1, P < 0.001; Cramer’s V = 0.13, P < 0.001), where the men-to-women ratio in each age group ranged from 3...
October 31, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28937189/boston-marathon-survivors-find-treatment-care-and-solidarity-among-veterans
#9
Jeannie Glickson
No abstract text is available yet for this article.
November 2016: Bulletin of the American College of Surgeons
https://www.readbyqxmd.com/read/28930640/age-related-decline-in-endurance-running-performance-an-example-of-a-multiple-world-records-holder
#10
Romuald Lepers, Thomas Cattagni
This study examined the age-related decline in endurance running performance of one of the greatest master runners ever, Ed Whitlock. His running performances from 1500 m to marathon were analyzed for five periods of 5 years from 65-69 years to 85-89 years. Despite exceptional running performances for his advanced age, the rate of decline in his performances increased after 80 years and was drastically amplified after 85 years.
September 20, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28904979/the-russians-are-the-fastest-in-marathon-cross-country-skiing-the-engadin-ski-marathon
#11
Pantelis Theodoros Nikolaidis, Jan Heller, Beat Knechtle
It is well known that athletes from a specific region or country are dominating certain sports disciplines such as marathon running or Ironman triathlon; however, little relevant information exists on cross-country skiing. Therefore, the aim of the present study was to investigate the aspect of region and nationality in one of the largest cross-country skiing marathons in Europe, the "Engadin Ski Marathon." All athletes (n = 197,125) who finished the "Engadin Ski Marathon" between 1998 and 2016 were considered...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28895388/probiotic-strains-as-the-element-of-nutritional-profile-in-physical-activity-%C3%A2-new-trend-or-better-sports-results
#12
Joanna Smarkusz, Lucyna Ostrowska, Katarzyna Witczak-Sawczuk
A diet, individually customized to the needs of sportsmen and sportswomen prepares them better for competition and achievement of better sports results. However, disorders of the gastrointestinal tract and frequently recurrent upper respiratory tract infections pose a common problem observed among athletes of disciplines such as triathlon, cycling and marathon. Diarrhea, splashing in the intestines or gastrointestinal bleeding make it difficult to start and win in the race. Recently researchers have paid special attention to the therapeutic effect of probiotic strains on the human body...
2017: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/28887210/can-half-marathon-affect-overall-health-the-yin-yang-of-sport
#13
Luca Dalle Carbonare, Marcello Manfredi, Giuseppe Caviglia, Eleonora Conte, Elisa Robotti, Emilio Marengo, Samuele Cheri, Francesco Zamboni, Daniele Gabbiani, Michela Deiana, Daniela Cecconi, Federico Schena, Monica Mottes, Maria Teresa Valenti
Physical activity improves overall health and counteracts metabolic pathologies. Adipose tissue and bone are important key targets of exercise; the prevalence of diseases associated with suboptimal physical activity levels has increased in recent times as a result of lifestyle changes. Mesenchymal stem cells (MSCs) differentiation in either osteogenic or adipogenic lineage is regulated by many factors. Particularly, the expression of master genes such as RUNX2 and PPARγ2 is essential for MSC commitment to osteogenic or adipogenic differentiation, respectively...
September 5, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28869746/physiological-intensity-profile-exercise-load-and-performance-predictors-of-a-65-km-mountain-ultra-marathon
#14
Alessandro Fornasiero, Aldo Savoldelli, Damiano Fruet, Gennaro Boccia, Barbara Pellegrini, Federico Schena
The aims of the study were to describe the physiological profile of a 65-km (4000-m cumulative elevation gain) running mountain ultra-marathon (MUM) and to identify predictors of MUM performance. Twenty-three amateur trail-runners performed anthropometric evaluations and an uphill graded exercise test (GXT) for VO2max, ventilatory thresholds (VTs), power outputs (PMax, PVTs) and heart rate response (HRmax, HR@VTs). Heart rate (HR) was monitored during the race and intensity was expressed as: Zone I (<VT1), Zone II (VT1-VT2), Zone III (>VT2) for exercise load calculation (training impulse, TRIMP)...
September 4, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28863152/the-boston-marathon-versus-the-world-marathon-majors
#15
Philip B Maffetone, Rita Malcata, Ivan Rivera, Paul B Laursen
PURPOSE: To compare finish times across WMM races for Boston, London, Berlin, Chicago and New York Marathons. METHODS: Race times of the top 10 male and 10 female finishers were analyzed from 2005 to 2014 using the high-performance mixed linear model procedure in the Statistical Analysis System. Venue-to-venue comparisons, as well as comparisons between Boston and other WMM races, with and without factors of temperature, humidity and altitude change were examined...
2017: PloS One
https://www.readbyqxmd.com/read/28860876/effect-of-age-and-performance-on-pacing-of-marathon-runners
#16
Pantelis Theodoros Nikolaidis, Beat Knechtle
Pacing strategies in marathon runners have previously been examined, especially with regard to age and performance level separately. However, less information about the age × performance interaction on pacing in age-group runners exists. The aim of the present study was to examine whether runners with similar race time and at different age differ for pacing. Data (women, n=117,595; men, n=180,487) from the "New York City Marathon" between 2006 and 2016 were analyzed. A between-within subjects analysis of variance showed a large main effect of split on race speed (p<0...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28859414/physiological-and-biomechanical-mechanisms-of-distance-specific-human-running-performance
#17
M A Thompson
Running events range from 60-m sprints to ultra-marathons covering 100 miles or more, which presents an interesting diversity in terms of the parameters for successful performance. Here, we review the physiological and biomechanical variations underlying elite human running performance in sprint to ultramarathon distances. Maximal running speeds observed in sprint disciplines are achieved by high vertical ground reaction forces applied over short contact times. To create this high force output, sprint events rely heavily on anaerobic metabolism, as well as a high number and large cross-sectional area of type II fibers in the leg muscles...
August 1, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28833626/cardiac-imaging-to-detect-coronary-artery-disease-in-athletes-aged-35-years-and-older-a-scoping-review
#18
Thijs L Braber, Johannes B Reitsma, Arend Mosterd, Martin J Willemink, Niek H J Prakken, Martin Halle, Sanjay Sharma, Birgitta K Velthuis
Sudden cardiac death (SCD) is a devastating event in athletes. Screening efforts that were first directed at athletes younger than 35 years, are now focusing on the rapidly growing group of older sportspersons. Athletes aged ≥35 years have a 10-fold increased risk of exercise-related cardiac arrest, mostly due to coronary artery disease (CAD). Although cardiac imaging is pivotal in identifying CAD, the role of imaging modalities in screening asymptomatic older sportspersons remains unclear. We performed a scoping review to identify the role of cardiac imaging to detect CAD in older sportspersons and to identify gaps in the existing literature...
August 23, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28828386/time-evolution-of-sublingual-microcirculatory-changes-in-recreational-marathon-runners
#19
Andrius Pranskunas, Justina Arstikyte, Zivile Pranskuniene, Jurga Bernatoniene, Inga Kiudulaite, Egle Vaitkaitiene, Dinas Vaitkaitis, Marius Brazaitis
We aimed to evaluate changes in sublingual microcirculation induced by a marathon race. Thirteen healthy male controls and 13 male marathon runners volunteered for the study. We performed sublingual microcirculation, using a Cytocam-IDF device (Braedius Medical, Huizen, Netherlands), and systemic hemodynamic measurements four times: 24 hours prior to their participation in the Kaunas Marathon (distance: 41.2 km), directly after finishing the marathon, 24 hours after the marathon, and one week after the marathon...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28799161/performance-factors-in-a-mountain-ultramarathon
#20
Pascal Balducci, Michel Clémençon, Robin Trama, Yoann Blache, Christophe Hautier
This study aimed to determine mountain ultra-marathon (MUM) performance factors in a large group of endurance mountain runners. Maximal aerobic speed (MAS) was assessed one week prior to the MUM. The level and graded (10%) energy cost of running, stiffness, knee extensors force (KEf), and jump height on a counter movement jump (CMJ) were measured in 24 male ultra runners before (pre) and immediately after (post) the Interlacs Trail (75 km and 3 930/3 700 m d+/d-). Performance time was correlated with MAS (r=- 0...
October 2017: International Journal of Sports Medicine
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