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https://www.readbyqxmd.com/read/29336959/psychological-attributes-of-ultramarathoners
#1
Katherine Buck, Jack Spittler, Alex Reed, Morteza Khodaee
INTRODUCTION: As the popularity of ultramarathon participation increases, there still exists a lack of understanding of the unique psychological characteristics of ultramarathon runners. The current study sought to investigate some of the psychological and behavioral factors that are involved in ultramarathon running. METHODS: We obtained information from participants of the Bear Chase Trail Race via an online survey. This race is a single-day, multidistance race consisting of a 10 k, half marathon, 50 k, 50 mi, and 100 k run in Lakewood, Colorado, at a base altitude of 1680 m with total altitude in climbs ranging from 663 to 2591 m...
January 11, 2018: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/29325455/influence-of-middle-distance-running-on-muscular-micro-rnas
#2
Elisa Danese, Marco Benati, Fabian Sanchis-Gomar, Cantor Tarperi, Gian Luca Salvagno, Elisa Paviati, Martina Montagnana, Federico Schena, Giuseppe Lippi
A specific subset of micro RNAs (miRs), including miR-133 and miR-206, is specifically expressed in muscle tissue, so that they are currently defined as muscular miRs (myomiRs). To further elucidate the role of myomiRs in muscle biology, we measured miR-133a and miR-206 in plasma of 28 middle-age recreational athletes. The study population consisted of 28 middle aged, recreation athletes (11 women and 17 men; mean age, 46 years) who completed a 21.1 km, half-marathon. The plasma concentration of miR-133a and miR-206, the serum concentration of creatine kinase (CK) and high-sensitivity (HS) cardiac troponin T (cTnT), as well as capillary lactate, were measured before and immediately after the run...
January 11, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29315098/anemia-in-athletes-news-on-iron-therapy-and-community-care-during-marathons
#3
E Randy Eichner
No abstract text is available yet for this article.
January 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29298672/no-association-between-actn3-r577x-and-ace-i-d-polymorphisms-and-endurance-running-times-in-698-caucasian-athletes
#4
Ioannis D Papadimitriou, Sarah J Lockey, Sarah Voisin, Adam J Herbert, Fleur Garton, Peter J Houweling, Pawel Cieszczyk, Agnieszka Maciejewska-Skrendo, Marek Sawczuk, Myosotis Massidda, Carla Maria Calò, Irina V Astratenkova, Anastasia Kouvatsi, Anastasiya M Druzhevskaya, Macsue Jacques, Ildus I Ahmetov, Georgina K Stebbings, Shane Heffernan, Stephen H Day, Robert Erskine, Charles Pedlar, Courtney Kipps, Kathryn N North, Alun G Williams, Nir Eynon
BACKGROUND: Studies investigating associations between ACTN3 R577X and ACE I/D genotypes and endurance athletic status have been limited by small sample sizes from mixed sport disciplines and lack quantitative measures of performance. AIM: To examine the association between ACTN3 R577X and ACE I/D genotypes and best personal running times in a large homogeneous cohort of endurance runners. METHODS: We collected a total of 1064 personal best 1500, 3000, 5000 m and marathon running times of 698 male and female Caucasian endurance athletes from six countries (Australia, Greece, Italy, Poland, Russia and UK)...
January 3, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29259560/the-energetics-during-the-world-s-most-challenging-mountain-ultra-marathon-a-case-study-at-the-tor-des-geants%C3%A2
#5
Aldo Savoldelli, Alessandro Fornasiero, Pietro Trabucchi, Eloisa Limonta, Antonio La Torre, Francis Degache, Barbara Pellegrini, Grégoire P Millet, Gianluca Vernillo, Federico Schena
Purpose: To provide insights into the energy requirements as well as the physiological adaptations of an experienced 50-year-old ultra-marathon male athlete during the world's most challenging mountain ultra-marathon (MUM). Methods: The international race supporting the study was the Tor des Geants®, characterized by 330 km with +24,000 m D+ to be covered within 150 h. Before the MUM, we assessed the peak oxygen uptake ([Formula: see text]) by means of an incremental graded running test. During the MUM we monitored six ascents (once per race day) with a portable gas analyzer, a GPS and a finger pulse oximeter...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29212672/cardiovascular-response-to-prescribed-detraining-among-recreational-athletes
#6
Charles Richard Pedlar, Marcel G Brown, Robert E Shave, James M Otto, Aimee Drane, Jennifer Michaud-Finch, Miranda Contursi, Meagan M Wasfy, Adolph Hutter, Michael H Picard, Gregory D Lewis, Aaron L Baggish
Exercise-induced cardiac remodeling (EICR) and the attendant myocardial adaptations characteristic of the athlete's heart may regress during periods of exercise reduction or abstinence. The time course and mechanisms underlying this reverse remodeling, specifically the impact of concomitant plasma volume (PV) contraction on cardiac chamber size, remain incompletely understood. We therefore studied recreational runners (n=21, aged 34 ± 7 years; 48% male) who completed an 18-week training program (~7 h.w-1) culminating in the 2016 Boston Marathon after which total exercise exposure was confined to <2 h...
December 6, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29172394/subchondral-insufficiency-fracture-in-the-lateral-compartment-of-the-knee-in-a-64-year-old-marathon-runner
#7
Vincent Vg An, Mathias van den Broek, Sam Oussedik
A 64-year-old marathon runner presented to our clinic with a history of worsening pain in her left knee. Following magnetic resonance imaging, the diagnosis of subchondral insufficiency fracture of the knee (SIFK) was made. A course of conservative management via bisphosphonates was initiated. The patient successfully recovered and returned to full athletic function, having recently returned to competitive marathon running. This article aims to present this unusual case of lateral compartment SIFK and summarise the literature on this uncommon condition...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29146288/unusual-iliac-crest-stress-fracture-in-a-marathoner-a-case-report
#8
Amy M West, Kelly C McInnis
This case presentation describes a 50-year-old healthy woman who developed left sided hip pain while training for the Boston Marathon. Magnetic Resonance Imaging (MRI) demonstrates a stress fracture of the left iliac body. This injury is unique in that it did not occur in the setting of low bone mineral density and it does not fall into the current published radiographic categorization based on location of injury. This case illustrates an uncommon and atypical bone stress injury in an endurance athlete. It should be considered in the differential diagnosis of runners presenting with hip or lumbopelvic pain...
November 13, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29143929/a-comparison-of-the-energetic-cost-of-running-in-marathon-racing-shoes
#9
Wouter Hoogkamer, Shalaya Kipp, Jesse H Frank, Emily M Farina, Geng Luo, Rodger Kram
BACKGROUND: Reducing the energetic cost of running seems the most feasible path to a sub-2-hour marathon. Footwear mass, cushioning, and bending stiffness each affect the energetic cost of running. Recently, prototype running shoes were developed that combine a new highly compliant and resilient midsole material with a stiff embedded plate. OBJECTIVE: The aim of this study was to determine if, and to what extent, these newly developed running shoes reduce the energetic cost of running compared with established marathon racing shoes...
November 16, 2017: Sports Medicine
https://www.readbyqxmd.com/read/29058466/changes-in-cardiac-and-muscle-biomarkers-following-an-uphill-only-marathon
#10
Alessandro Da Ponte, Nicola Giovanelli, Guglielmo Antonutto, Daniele Nigris, Francesco Curcio, Pietro Cortese, Stefano Lazzer
The aim of the study was to evaluate changes in cardiac troponin I levels (cTnI) and the main biomarkers of skeletal muscle damage after an uphill-only marathon, along with its relationship with athletes' physiological parameters. Twenty-two runners participated in the "Supermaratona dell'Etna" (43 km, 0-2850 m AMSL). Before and immediately after the race, body mass and hydration status were measured together with blood sampling. At the end of the race, mean cTnI increased significantly in all athletes (mean +900%), and in 52% of them the cTnI values were over the normal range...
October 23, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28955243/the-effect-of-a-100-km-ultra-marathon-under-freezing-conditions-on-selected-immunological-and-hematological-parameters
#11
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/28904979/the-russians-are-the-fastest-in-marathon-cross-country-skiing-the-engadin-ski-marathon
#12
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
#13
REVIEW
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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