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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/28859415/performance-tradeoffs-ontogenetic-conflict-and-multisport-athletes-how-is-an-ironman-triathlete-like-a-frog
#2
Ryan Calsbeek, Debora Goedert
Life-history theory is a cornerstone of modern evolutionary biology that addresses myriad phenomena ranging from demography and population structure to the evolution of aging and senescence. Trade-offs may arise in a number of contexts, from allocation-based (e.g., egg size vs. egg number) to genomic conflicts (e.g., intralocus sexual conflict in which genes that perform well in males perform poorly in females). Here we test for performance tradeoffs in human athletes. We show that in Ironman triathletes, swimming performance trades off with cycling and running performance...
August 1, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28826371/-if-it-s-not-iron-it-s-iron-f-cking-biggest-ironman-personal-trainers-s-views-on-health-norms-orthorexia-and-deviant-behaviours
#3
Linn Håman, Eva-Carin Lindgren, Hillevi Prell
Orthorexia nervosa (ON) describes a pathological obsession with healthy eating to avoid ill health. In the Swedish context, ON is also understood in terms of unhealthy exercise. Fitness gyms are popular health-promoting places, but exercise-related problems, disordered eating and ON-like behaviour are increasing. Personal trainers (PTs) play an important role in detecting unhealthy behaviours. The aim of the present study was to illuminate PTs' understandings of healthy and unhealthy exercise and eating behaviours in relation to orthorexia nervosa in a fitness gym context...
December 2017: International Journal of Qualitative Studies on Health and Well-being
https://www.readbyqxmd.com/read/28628968/performance-trends-in-age-group-triathletes-in-the-olympic-distance-triathlon-at-the-world-championships-2009-2014
#4
Martin Wonerow, Christoph Alexander Rüst, Pantelis Theodoros Nikolaidis, Thomas Rosemann, Beat Knechtle
Performance trends in elite triathletes competing in age group classes have been investigated for Ironman triathlon in ‘Ironman Hawaii’ but not for short distance triathletes competing at international level in events such as the Olympic distance triathlon at the World Championships. The aim of the present study was to evaluate participation and performance trends of age group triathletes competing in the Olympic distance triathlon at the International Triathlon Union (ITU) World Championships 2009-2014...
June 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28611674/is-marathon-training-harder-than-the-ironman-training-an-eco-method-comparison
#5
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/28609447/blood-biomarkers-in-male-and-female-participants-after-an-ironman-distance-triathlon
#6
Tom Danielsson, Jörg Carlsson, Hendrik Schreyer, Jonas Ahnesjö, Lasse Ten Siethoff, Thony Ragnarsson, Åsa Tugetam, Patrick Bergman
BACKGROUND: While overall physical activity is clearly associated with a better short-term and long-term health, prolonged strenuous physical activity may result in a rise in acute levels of blood-biomarkers used in clinical practice for diagnosis of various conditions or diseases. In this study, we explored the acute effects of a full Ironman-distance triathlon on biomarkers related to heart-, liver-, kidney- and skeletal muscle damage immediately post-race and after one week's rest...
2017: PloS One
https://www.readbyqxmd.com/read/28552834/high-impact-sport-after-hip-resurfacing-the-ironman-triathlon
#7
J Girard, A Lons, T Pommepuy, R Isida, K Benad, S Putman
BACKGROUND: Returning to high-impact sport is an increasingly frequent functional demand following hip replacement. The literature, however, is sparse on the subject and nonexistent regarding triathlon. We therefore conducted a retrospective study of hip resurfacing in triathlon players, to determine: (1) whether it is possible to return to this kind of sport; (2) if so, whether it is possible to return to the same level; and (3) how a resurfaced hip behaves under these conditions. HYPOTHESIS: Hip resurfacing allows return to competition level in long-distance triathlon...
May 25, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28498220/patient-presentations-and-medical-logistics-at-full-and-half-ironman-distance-triathlons
#8
Sheila A Turris, Adam Lund, Ron R Bowles, Michael Camporese, Tom Green
We describe logistical challenges, illness/injury rates, as well as medical and ambulance transfer rates (ATR) at an annual large-scale half/full triathlon in a remote location. Prospective observational study; registry data. Data on patient presentation rates, percentage of patients transferred by ambulance, transfer to hospital rates (TTHR), ATR, and medical usage rates were collected and analyzed. In total, 1923 athletes participated in the 2016 triathlon (1404 in the full-length race and 519 in the half) and 181 patient encounters were documented...
May 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28350714/multiple-transportable-carbohydrate-effect-on-long-distance-triathlon-performance
#9
David S Rowlands, Stuart D Houltham
The ingestion of multiple (2:1 glucose-fructose) transportable carbohydrate in beverages at high rates (>78 g·h) during endurance exercise enhances exogenous carbohydrate oxidation, fluid absorption, gut comfort, and performance relative to glucose alone. However, during long-distance endurance competition, athletes prefer a solid-gel-drink format, and the effect size of multiple-transportable carbohydrate is unknown. PURPOSE: This study aimed to determine the effect of multiple-transportable carbohydrate on triathlon competition performance when ingested within bars, gels, and drinks...
August 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28230417/aging-and-half-ironman-performance
#10
M J Stones, Adric Hartin
Background/Study Context: Previous research on triathlon performance analyzed age trends for the Top Ten or Top Five finishers in world championship or national races at Olympic, Half-Ironman, and Ironman distances. The findings indicated higher age declines and/or earlier onset of decline in swimming and running than cycling. However, the designs of those studies took no account of possible differences between cross-sectional and longitudinal trends (i.e., cohort differences versus age changes). METHODS: This study analyzed performance times over the inaugural 5 years of the Half-Ironman world championship held in Clearwater, Florida, from 2006 to 2010...
March 2017: Experimental Aging Research
https://www.readbyqxmd.com/read/28225523/the-age-related-performance-decline-in-ironman-triathlon-starts-earlier-in-swimming-than-in-cycling-and-running
#11
Ilja Käch, Christoph A Rüst, Pantelis T Nikolaidis, Thomas Rosemann, Beat Knechtle
In Ironman triathlon, the number of overall male and female finishers increased in the last 30 years, while an improvement in performance has been reported. Studies concluding these numbers only analysed the top ten athletes per age group instead of all finishers, therefore a selection bias might have occurred. The aim of the present study was to investigate participation, performance and the age-related performance decline of all pro and age group triathletes ranked in all Ironman triathlons held worldwide between 2002 and 2015...
February 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28203462/adherence-to-follow-up-recommendations-by-triathlon-competitors-receiving-event-medical-care
#12
Jeremy D Joslin, Jarem B Lloyd, Nikoli Copeli, Derek R Cooney
Introduction. We sought to investigate triathlete adherence to recommendations for follow-up for participants who received event medical care. Methods. Participants of the 2011 Ironman Syracuse 70.3 (Syracuse, NY) who sought evaluation and care at the designated finish line medical tent were contacted by telephone approximately 3 months after the initial encounter to measure adherence with the recommendation to seek follow-up care after event. Results. Out of 750 race participants, 35 (4.6%) athletes received event medical care...
2017: Emergency Medicine International
https://www.readbyqxmd.com/read/27913923/actn3-x-allele-carriers-had-greater-levels-of-muscle-damage-during-a-half-ironman
#13
Juan Del Coso, Juan José Salinero, Beatriz Lara, César Gallo-Salazar, Francisco Areces, Carlos Puente, David Herrero
PURPOSE: Alpha-actinin-3, encoded by the ACTN3 gene, is an actin-binding protein with an important role in myofibril contraction and muscle force output. In humans, there is a relatively common deficiency of the α-actinin-3 due to homozygosity in a polymorphism of the ACTN3 gene (R577X, rs1815739), that has been related to decreased resistance to strain during voluntary muscle contractions. The purpose of this study was to investigate the influence of the ACTN3 genotype on the level of exercise-induced muscle damage attained by 23 experienced triathletes during an official half-ironman competition...
December 2, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27850233/594-intravenous-iron-or-placebo-for-anaemia-in-the-icu-the-ironman-multicentre-randomized-blinded-trial
#14
Edward Litton
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27817192/positive-pacing-in-elite-ironman-triathletes
#15
Nicole Angehrn, Christoph A. Rüst, Pantelis T. Nikolaidis, Thomas Rosemann, Beat Knechtle
Pacing is known to influence athletic performance. For the Ironman triathlon program, a positive pacing strategy, i.e., the continuous decrease of speed over time was recommended. By analyzing split times, we assessed the pacing strategies of the top 100 finishers of the cycling part of 13 Ironman races and of the running part of 11 Ironman races taking place in 2014. Furthermore, sex-associated differences in performance and pacing strategies were calculated. We analyzed 7,687 cycling and 11,894 running split times of 1,392 triathletes (1,263 men, 129 women)...
December 31, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27686346/intravenous-iron-or-placebo-for-anaemia-in-intensive-care-the-ironman-multicentre-randomized-blinded-trial-a-randomized-trial-of-iv-iron-in-critical-illness
#16
RANDOMIZED CONTROLLED TRIAL
Edward Litton, Stuart Baker, Wendy N Erber, Shannon Farmer, Janet Ferrier, Craig French, Joel Gummer, David Hawkins, Alisa Higgins, Axel Hofmann, Bart De Keulenaer, Julie McMorrow, John K Olynyk, Toby Richards, Simon Towler, Robert Trengove, Steve Webb
PURPOSE: Both anaemia and allogenic red blood cell transfusion are common and potentially harmful in patients admitted to the intensive care unit. Whilst intravenous iron may decrease anaemia and RBC transfusion requirement, the safety and efficacy of administering iron intravenously to critically ill patients is uncertain. METHODS: The multicentre, randomized, placebo-controlled, blinded Intravenous Iron or Placebo for Anaemia in Intensive Care (IRONMAN) study was designed to test the hypothesis that, in anaemic critically ill patients admitted to the intensive care unit, early administration of intravenous iron, compared with placebo, reduces allogeneic red blood cell transfusion during hospital stay and increases the haemoglobin level at the time of hospital discharge...
November 2016: Intensive Care Medicine
https://www.readbyqxmd.com/read/27669445/triathletes-lose-their-advantageous-pain-modulation-under-acute-psychosocial-stress
#17
Nirit Geva, Jens Pruessner, Ruth Defrin
INTRODUCTION: Triathletes, who constantly engage in intensely stressful sport, were recently found to exhibit greater pain tolerance and more efficient pain inhibition capabilities than non athletes. However, pain inhibition correlated negatively with retrospective reports of mental stress during training and competition. The aim of the current study was to test pain inhibition capabilities of triathletes under acute, controlled psychological stress manipulation. METHODS: Participants were 25 triathletes and ironman triathletes who underwent the measurement of pain-threshold, pain-intolerance, tonic suprathreshold pain and conditioned pain modulation (CPM) before and during exposure to the Montreal Imaging Stress Task (MIST)...
September 23, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27642618/infodemiological-data-of-ironman-triathlon-in-the-study-period-2004-2013
#18
Sofiane Mnadla, Nicola Luigi Bragazzi, Mehdi Rouissi, Anis Chaalali, Anna Siri, Johnny Padulo, Luca Paolo Ardigò, Francesco Brigo, Karim Chamari, Beat Knechtle
This article reports data concerning the Internet-related activities and interest for Ironman Triathlon competition. Google Trends (GT) was used and mined from 2004 onwards. The interest for Ironman Triathlon was found to be cyclic over time. The Triathlon-related Internet activities negatively correlated with the number of finishers per year (Pearson׳s correlation r=-0.690, p-value<0.05), while an increasing participation of female athletes who were less likely to surf the Internet could be noticed (r=-0...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27604138/performance-and-sex-differences-in-isklar-norseman-xtreme-triathlon
#19
Beat Knechtle, Pantelis Theodoros Nikolaidis, Michael Stiefel, Thomas Rosemann, Christoph Alexander Rüst
The performance and sex differences of long-distance triathletes competing in 'Ironman Hawaii' are well investigated. However, less information is available with regards to triathlon races of the Ironman distance held under extreme environmental conditions (e.g. extreme cold) such as the 'Isklar Norseman Xtreme Triathlon' which started in 2003. In 'Isklar Norseman Xtreme Triathlon', athletes swim at a water temperature of ~13-15°C, cycle at temperatures of ~5-20°C and run at temperatures of ~12-28°C in the valley and of ~2-12°C at Mt...
October 31, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27483401/-not-available
#20
Jörg Carlsson, Thony Ragnarsson, Tom Danielsson, Therése Johansson, Hendrik Schreyer, Antonia Breyne, Patrick Bergman
Biochemical changes after strenuous exercise - data from the Kalmar Ironman Strenuous and prolonged exercise like marathon, ultra running and triathlon can lead to changes in biomarkers of cardiac, muscle and kidney functional damage. We present the data of 30 (15 men, 15 women) participants of the Kalmar Ironman 2015. Pre-race electrocardiograms and echocardiograms showed a high frequency of abnormalities. Post race elevations of troponin T, creatine kinase, myoglobin, N-terminal prohormone of brain natriuretic peptide, and creatinine returned to normal in almost all cases within 5-8 days...
August 1, 2016: Läkartidningen
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