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https://www.readbyqxmd.com/read/29777386/substrate-metabolism-during-ironman-triathlon-different-horses-on-the-same-courses
#1
Ed Maunder, Andrew E Kilding, Daniel J Plews
Ironman triathlons are ultra-endurance events of extreme duration. The performance level of those competing varies dramatically, with elite competitors finishing in ~ 8:00:00, and lower performing amateurs finishing in ~ 14-15:00:00. When applying appropriate values for swimming, cycling and running economies to these performance times, it is demonstrated that the absolute energy cost of these events is high, and the rate of energy expenditure increases in proportion with the athlete's competitive level...
May 18, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29719946/bilateral-patellar-cyst-a-case-report-with-an-ironman-triathlete
#2
Beat Knechtle, Eckhard Wengler, Pantelis T Nikolaidis
No abstract text is available yet for this article.
May 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29685828/influence-of-cold-water-immersion-on-recovery-of-elite-triathletes-following-the-ironman-world-championship
#3
Rebecca L Stearns, Julie K Nolan, Robert A Huggins, Carl M Maresh, Colleen X Munõz, Kelly D Pagnotta, Brittanie M Volk, Douglas J Casa
OBJECTIVES: Cold water immersion (CWI) has been widely used for enhancing athlete recovery though its use following an Ironman triathlon has never been examined. The purpose of this paper is to determine the influence of CWI immediately following an Ironman triathlon on markers of muscle damage, inflammation and muscle soreness. DESIGN: Prospective cohort study. METHODS: Thirty three (22 male, 11 female), triathletes participating in the Ironman World Championships volunteered to participate (mean±SD: age=40±11years; height=174...
January 31, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29599864/urinary-steroid-profile-in-ironman-triathletes
#4
Marta Marcos-Serrano, Guillermo Olcina, Carmen Crespo, Darrell Brooks, Rafael Timon
The aim of this study was to determine variations in the urinary steroid profile of triathletes following an Ironman event. A total of 10 male participants (age = 36.0 ± 1.27 years; body height = 179.29 ± 10.77 cm; body mass = 74.50 ± 1.04 kg) completed an Ironman Championship. Urine samples were collected before, immediately after, and 24 hours following the race. Gas chromatography-mass spectrometry (GC/MS) was used to detect and quantify catabolic and anabolic hormones: Androsterone, Dehydroepiandrosteone (DHEA), Androstenedione and Testosterone (T), Betaestradiol, Estrone, Progesterone, Cortisol (C), Cortisone, Tetrahydrocortisol (THE) and Tetrahydrocortisone (THF)...
March 2018: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29140910/polygenic-profile-and-exercise-induced-muscle-damage-by-a-competitive-half-ironman
#5
Juan Del Coso, Juan J Salinero, Beatriz Lara, César Gallo-Salazar, Francisco Areces, David Herrero, Carlos Puente
Del Coso, J, Salinero, JJ, Lara, B, Gallo-Salazar, C, Areces, F, Herrero, D, and Puente, C. Polygenic profile and exercise-induced muscle damage by a competitive half-ironman. J Strength Cond Res XX(X): 000-000, 2017-To date, it is still unknown why some individuals develop higher levels of muscle damage than other individuals, despite participating in exercise with comparable levels of physical intensity. The aim of this investigation was to analyze 7 single-nucleotide polymorphisms (SNPs) that are candidates to explain individual variations in the level of muscle damage attained during a half-ironman competition...
November 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29135637/triathlon-injuries-transitioning-from-prevalence-to-prediction-and-prevention
#6
REVIEW
Carolyn M Kienstra, Tristen R Asken, Jennifer D Garcia, Vanessa Lara, Thomas M Best
The Ironman triathlon began in Hawaii in 1978 with 50 participants. Since then, the race has continued to grow in popularity. Injuries are very common among triathletes. Studies have looked at the relationship between injuries and many different factors. Sex, age, and morphological characteristics, such as height, weight, and body mass index, have not been shown to correlate with injury. The association between training volume and injury has shown inconsistent results. This could be due to multiple factors in study design including definitions and evaluation of training volume...
November 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29050040/maximal-fat-oxidation-is-related-to-performance-in-an-ironman-triathlon
#7
Jacob Frandsen, Stine Dahl Vest, Steen Larsen, Flemming Dela, Jørn W Helge
The aim of the present study was to investigate the relationship between maximal fat oxidation rate (MFO) measured during a progressive exercise test on a cycle ergometer and ultra-endurance performance. 61 male ironman athletes (age: 35±1 yrs. [23-47 yrs.], with a BMI of 23.6±0.3 kg/m2 [20.0-30.1 kg/m2 ], a body fat percentage of 16.7±0.7% [8.4-30.7%] and a VO2 peak of 58.7±0.7 ml/min/kg [43.9-72.5 ml/min/kg] SEM [Range]) were tested in the laboratory between 25 and 4 days prior to the ultra-endurance event, 2016 Ironman Copenhagen...
November 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29026523/medical-support-during-an-ironman-70-3-triathlon-race
#8
Hae-Rang Yang, Jinwoo Jeong, Injoo Kim, Ji Eun Kim
BACKGROUND: The Ironman 70.3 race is also called a half Ironman, and consists of 1.9 km of swimming, 90.1 km of cycling, and 21.1 km of running. The authors provide practical insights that may be useful for medical support in future events by summarizing the process and results of on-scene medical care. METHODS: The medical post was established at the transition area between the cycling and running courses, which was close to the finish line, and staffed with the headquarters team comprised of an emergency physician, an EMT, two nurses, and an ambulance with a driver...
2017: F1000Research
https://www.readbyqxmd.com/read/28904979/the-russians-are-the-fastest-in-marathon-cross-country-skiing-the-engadin-ski-marathon
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
RANDOMIZED CONTROLLED TRIAL
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
#18
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
#19
Ilja W Käch, Christoph A Rüst, Pantelis T Nikolaidis, Thomas Rosemann, Beat Knechtle
Käch, I, Rüst, CA, Nikolaidis, PT, Rosemann, T, and Knechtle, B. The age-related performance decline in Ironman triathlon starts earlier in swimming than in cycling and running. J Strength Cond Res 32(2): 379-395, 2018-In Ironman triathlon, the number of overall male and female finishers increased in the past 30 years, while an improvement in performance has been reported. Studies concluding these numbers only analyzed the top 10 athletes per age group instead of all finishers; therefore, a selection bias might have occurred...
February 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28203462/adherence-to-follow-up-recommendations-by-triathlon-competitors-receiving-event-medical-care
#20
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
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