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https://www.readbyqxmd.com/read/28904979/the-russians-are-the-fastest-in-marathon-cross-country-skiing-the-engadin-ski-marathon
#1
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
#2
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/28860876/effect-of-age-and-performance-on-pacing-of-marathon-runners
#3
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/28833626/cardiac-imaging-to-detect-coronary-artery-disease-in-athletes-aged-35-years-and-older-a-scoping-review
#4
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/28790928/enhanced-right-chamber-remodeling-in-endurance-ultra-trail-athletes-compared-to-marathon-runners-detected-by-standard-and-speckle-tracking-echocardiography
#5
Kristian Ujka, Luca Bastiani, Gennaro D'Angelo, Bruna Catuzzo, Alessandro Tonacci, Simona Mrakic-Sposta, Alessandra Vezzoli, Guido Giardini, Lorenza Pratali
Background: Strenuous and endurance exercise training have been associated with morphological and functional heart remodeling. Two-dimensional speckle-tracking echocardiography (STE) is a novel technique that allows an accurate quantification of global myocardium deformation. Our aim was to evaluate together left and right cardiac remodeling in different long-distance running athletes: marathon runners (42 km) (M) and endurance mountain runners (>300 Km) (UT). Methods: A total of 92 athletes (70 males, 76%) including 47 M [age 45 ± 7 years; training: 18 (9-53) years(*)days/week], 45 UT [age 42 ± 9, training: 30 (15-66) years(*)days/week] underwent conventional echocardiography and STE (Beyond Diogenes 2...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28775185/frequency-of-exercise-induced-st-t-segment-deviations-and-cardiac-arrhythmias-in-recreational-endurance-athletes-during-a-marathon-race-results-of-the-prospective-observational-berlin-beat-of-running-study
#6
Juliane Herm, Agnieszka Töpper, Alexander Wutzler, Claudia Kunze, Matthias Krüll, Lars Brechtel, Jürgen Lock, Jochen B Fiebach, Peter U Heuschmann, Wilhelm Haverkamp, Matthias Endres, Gerhard Jan Jungehulsing, Karl Georg Haeusler
OBJECTIVES: While regular physical exercise has many health benefits, strenuous physical exercise may have a negative impact on cardiac function. The 'Berlin Beat of Running' study focused on feasibility and diagnostic value of continuous ECG monitoring in recreational endurance athletes during a marathon race. We hypothesised that cardiac arrhythmias and especially atrial fibrillation are frequently found in a cohort of recreational endurance athletes. The main secondary hypothesis was that pathological laboratory findings in these athletes are (in part) associated with cardiac arrhythmias...
August 3, 2017: BMJ Open
https://www.readbyqxmd.com/read/28756389/sports-injury-and-illness-incidence-in-the-rio-de-janeiro-2016-olympic-summer-games-a-prospective-study-of-11274-athletes-from-207-countries
#7
Torbjørn Soligard, Kathrin Steffen, Debbie Palmer, Juan Manuel Alonso, Roald Bahr, Alexandre Dias Lopes, Jiri Dvorak, Marie-Elaine Grant, Willem Meeuwisse, Margo Mountjoy, Leonardo Oliveira Pena Costa, Natalia Salmina, Richard Budgett, Lars Engebretsen
OBJECTIVE: To describe the pattern of injuries and illnesses sustained during the Games of the XXXI Olympiad, hosted by Rio de Janeiro from 5 to 21 August 2016. METHODS: We recorded the daily incidence of athlete injuries and illnesses (1) through the reporting of all National Olympic Committee (NOC) medical teams and (2) in the polyclinic and medical venues by the Rio 2016 medical staff. RESULTS: In total, 11 274 athletes (5089 women, 45%; 6185 men, 55%) from 207 NOCs participated in the study...
September 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28731980/running-performance-nationality-sex-and-age-in-the-10-km-half-marathon-marathon-and-the-100-km-ultramarathon-iaaf-1999-2015
#8
Pantelis T Nikolaidis, Vincent O Onywera, Beat Knechtle
Nikolaidis PT, Onywera VO, and Knechtle B. Running performance, nationality, sex, and age in the 10-km, half-marathon, marathon, and the 100-km ultramarathon IAAF 1999-2015. J Strength Cond Res 31(8): 2189-2207, 2017-The aim of this study was to examine the performance of the world's best runners in the 10-km, half-marathon, marathon, and 100-km races by age, sex, and nationality during 1999-2015, using data from the International Association of Athletics Federations (IAAF). A total of 38,895 runners (17,136 women and 21,759 men) were evaluated, with 2,594 (1,360 women and 1,234 men) in the 10-km; 11,595 (5,225 women and 6,370 men) in the half-marathon; 23,973 (10,208 women and 13,765 men) in the marathon; and 733 (343 women and 390 men) in 100-km events...
August 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28714744/marathon-pace-control-in-masters-athletes
#9
Derek Breen, Michelle Norris, Robin Healy, Ross Anderson
PURPOSE: Pacing strategies are key to overall performance outcome in distance running events. Presently, no literature has examined pacing strategies utilised by masters athletes, of all running levels, during a competitive marathon. Therefore, this study aimed to examine masters athletes' pacing strategies, categorised by gender, age and performance level. METHODS: Data were retrieved from the 2015 TSC New York City Marathon for 31,762 masters athletes (20,019 men and 11,743 women)...
July 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28706923/influence-of-abo-blood-group-on-sports-performance
#10
Giuseppe Lippi, Giorgio Gandini, Gian Luca Salvagno, Spyros Skafidas, Luca Festa, Elisa Danese, Martina Montagnana, Fabian Sanchis-Gomar, Cantor Tarperi, Federico Schena
BACKGROUND: Despite being a recessive trait, the O blood group is the most frequent worldwide among the ABO blood types. Since running performance has been recognized as a major driver of evolutionary advantage in humans, we planned a study to investigate whether the ABO blood group may have an influence on endurance running performance in middle-aged recreational athletes. METHODS: The study population consisted of 52 recreational, middle-aged, Caucasian athletes (mean age: 49±13 years, body mass index, 23...
June 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28674598/cortisol-and-alpha-amylase-changes-during-an-ultra-running-event
#11
Whitney P Deneen, Alexis B Jones
Elevated stress hormone concentrations can positively affect an athlete's overall performance during a competition, and in many cases, are necessary to be able to perform exercise. During extreme exercise, the body's ability to utilize energy efficiently can affect an athlete's performance. Elevated hormonal concentrations can have many benefits in regards to an athlete's overall performance during a competition. The purpose of this study was to examine the effects of long distance running, such as seen during an ultra-running event (distances beyond 26...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28611674/is-marathon-training-harder-than-the-ironman-training-an-eco-method-comparison
#12
Jonathan Esteve-Lanao, Diego Moreno-Pérez, Claudia A Cardona, Eneko Larumbe-Zabala, Iker Muñoz, Sergio Sellés, Roberto Cejuela
Purpose: To compare the absolute and relative training load of the Marathon (42k) and the Ironman (IM) training in recreational trained athletes. Methods: Fifteen Marathoners and Fifteen Triathletes participated in the study. Their performance level was the same relative to the sex's absolute winner at the race. No differences were presented neither in age, nor in body weight, height, BMI, running VO2max max, or endurance training experience (p > 0.05). They all trained systematically for their respective event (IM or 42k)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28591543/influence-of-polyphenol-rich-diet-on-exercise-induced-immunomodulation-in-male-endurance-athletes
#13
Korbinian Lackermair, Johannes Scherr, Georg Waidhauser, Heiko Methe, Eva Hoster, David C Nieman, Alan Hanley, Sebastian Clauss, Martin Halle, Thomas Nickel
Stress is associated with increased susceptibility to infection. We investigated if the mechanism involves immunomodulation of dendritic cells and whether this can be inhibited by a polyphenol-rich diet. Blood samples were taken from a total of 100 male endurance athletes at 5 time points around a marathon run: 4 weeks before; 1 week before; and immediately, 24 h, and 72 h after. Participants were randomized into 2 double-blinded groups. One group received a polyphenol-rich beverage during a 3-week training phase before marathon while the other group received a placebo beverage...
June 7, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28565852/oxidation-of-human-serum-albumin-exhibits-inter-individual-variability-after-an-ultra-marathon-mountain-race
#14
Ypatios Spanidis, Alexandros Priftis, Dimitrios Stagos, George A Stravodimos, Demetres D Leonidas, Demetrios A Spandidos, Aristides M Tsatsakis, Demetrios Kouretas
The aim of this study was to examine the oxidation of human serum albumin (HSA) caused by oxidative stress following exhaustive and demanding exercise, such as an ultra-marathon race. For this purpose, blood samples from 12 adult runners who underwent a 103 km mountain ultra-marathon race were collected before the race, and also at 24, 48 and 72 h post-race. HSA was partially purified using affinity chromatography and consequently subjected to western blot analysis in order to determine the levels of disulfide dimers indicating oxidation...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28538304/a-performance-analysis-of-a-stand-up-paddle-board-marathon-race
#15
Ben L Schram, Wayne A Hing, Mike Climstein, James W Furness
Stand-up paddle boarding (SUP) is a rapidly growing sport and recreational activity in which little scientific research exists. A review of the literature failed to identify a single article pertaining to the physiological demands of SUP competition. The purpose of this study was to conduct a performance analysis of a national-level SUP marathon race. Ten elite SUP athletes (6 male and 4 female athletes) were recruited from the Stand Up Paddle Surfing Association of Australia to have their race performance in the Australian Titles analyzed...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28535286/invited-commentary-is-strenuous-activity-good-for-you-the-legacy-of-ralph-paffenbarger
#16
Lewis H Kuller
Ralph Paffenbarger, Jr, MD, DrPH (1922-2007), was initially trained as an infectious disease epidemiologist at the Johns Hopkins School of Hygiene and Public Health (now the Bloomberg School of Public Health). He was the first Epidemiology Intelligence Service officer in the first Epidemiology Intelligence Service class. He joined the National Heart Institute (now the National Heart, Lung, and Blood Institute) in its very early days and later became a faculty member at Stanford University and Harvard University...
June 1, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28532238/the-age-related-performance-decline-in-marathon-cross-country-skiing-the-engadin-ski-marathon
#17
Pantelis Theodoros Nikolaidis, Beat Knechtle
Demographic and performance data from 197,825 athletes competing in "Engadin Ski Marathon" between 1998 and 2016 were analysed. When all finishers per age group were considered, there was no gender difference in time (2:59:00 in women versus 2:59:09 h:min:s in men; P = 0.914, η(2) < 0.001) and the main effect of age group on time was trivial (P < 0.001, η(2) = 0.007). When the top 10 finishers per age group were considered, men were faster than women (1:27:32 versus 1:34:19 h:min:s, respectively; P < 0...
May 22, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28503322/changes-in-oxidized-ldl-during-a-half-marathon-in-athletes-with-spinal-cord-injuries
#18
Toshihito Mitsui, Tomoyuki Ito, Yusuke Sasaki, Takashi Kawasaki, Takeshi Nakamura, Yukihide Nishimura, Tatsuru Ibusuki, Yukiharu Higuchi, Sayoko Hosoe, Fumiaki Ito, Fumihiro Tajima
INTRODUCTION: We reported previously that exercise significantly increases plasma adrenaline and oxidized low-density lipoprotein (oxLDL) in healthy subjects but not in persons with spinal cord injury (SCI). Since oxLDL and adrenaline levels are associated with oxidant/antioxidant balance, and exercise training elicits production of reactive oxygen species, we elucidated the effects of exercise on adrenaline, oxidant/antioxidant balance and oxLDL in individuals with SCI. CASE PRESENTATION: Eight subjects with cervical spinal cord injury (CSCI) and nine subjects with lower lesion of SCI (lower SCI (LSCI)) participated in a wheelchair half marathon race, and blood samples were collected before (pre), immediately after (post) and 1 h after the race (post 1 h)...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28488940/elite-african-marathoners-specialize-earlier-than-elite-non-african-marathoners
#19
Tyler J Noble, Robert F Chapman
PURPOSE: To assess differences in event specific specialization between elite African and Non-African male marathon runners on the basis of age, performance, and career length. METHODS: The top 90 African marathoners from 2001-2015 were compared to the top 90 Non-African marathoners from the same time period across various markers related to specialization age, performance, and career length. Independent t-tests were used to identify significant differences (P<0...
May 10, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28481126/increased-levels-of-alveolar-and-airway-exhaled-nitric-oxide-in-runners
#20
Alexandra Thornadtsson, Nikola Drca, Fabio Ricciardolo, Marieann Högman
AIM: The objective of this study was to apply extended NO analysis for measurements of NO dynamics in the lung, divided into alveolar and airway contribution, in amateur runners and marathoners. METHODS: The athletes participated in either a marathon or a half marathon. The athletes self-reported their age, weight, height, training distance per week, competing distance, cardio-pulmonary health, atopic status, and use of tobacco. Measurements of exhaled NO (FENO) with estimation of alveolar NO (CANO) and airway flux (JawNO), ventilation, pulse oximetry, and peak flow were performed before, immediately after, and 1 hour after completing the race...
June 2017: Upsala Journal of Medical Sciences
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