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https://www.readbyqxmd.com/read/29745739/training-performance-and-physiological-predictors-of-a-successful-elite-senior-career-in-junior-competitive-road-cyclists
#1
Ida S Svendsen, Espen Tønnesen, Leif Inge Tjelta, Stein Ørn
PURPOSE: to determine whether training, performance or physiological variables at age 18 can predict which athletes become World Tour (WT) riders at senior level. METHODS: Based on performance level age 23, 80 competitive male cyclists were retrospectively categorised into four groups: Retired (n=21), Club (n=26), Continental (n=24), or WT (n=9). Data collected at age 18 were analysed to determine whether training, performance or physiological variables differed significantly between groups...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29688109/power-output-and-pacing-during-international-cross-country-mountain-bike-cycling
#2
Cyril Granier, Chris R Abbiss, Anaël Aubry, Yvon Vauchez, Sylvain Dorel, Christophe Hausswirth, Yann Le Meur
PURPOSE: To characterize the physiological profiles of elite cross-country mountain bike (XCO-MTB) cyclists, and to examine their pacing and power output (PO) distribution during international races. METHODS: Over two competitive seasons, eight elite male XCO-MTB cyclists (VO2 max: 79.9 ± 5.2 ml.min-1 .kg-1 , MAP: 411 ± 18 W and 6.3 ± 0.4 W.kg-1 ) regularly undertook incremental tests to assess their PO and heart rate (HR) at first and second ventilatory thresholds (VT1 and VT2) and at VO2max ...
April 24, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29688105/sprinting-for-the-win-distribution-of-power-output-in-women-s-professional-cycling
#3
Jeremiah J Peiffer, Chris R Abbiss, Eric C Haakonssen, Paolo Menaspà
PURPOSE: This study examined the power output distribution and sprint characteristics of professional female road cyclists. METHODS: 31 race files, representing top-five finishes, were collected from seven professional female cyclists. Files were analysed for sprint characteristics including; mean and peak power output, velocity and duration. The final 20 min before the sprint was analysed to determine the mean maximal power output (MMP) consistent with 5, 15, 30, 60, 240 and 600s durations...
April 24, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29594509/exertional-heat-illness-incidence-and-on-site-medical-team-preparedness-in-warm-weather
#4
Yuri Hosokawa, William M Adams, Luke N Belval, Robert J Davis, Robert A Huggins, John F Jardine, Rachel K Katch, Rebecca L Stearns, Douglas J Casa
To investigate the influence of estimated wet bulb globe temperature (WBGT) and the International Institute of Race Medicine (IIRM) activity modification guidelines on the incidence of exertional heat stroke (EHS) and heat exhaustion (HEx) and the ability of an on-site medical team to treat those afflicted. Medical records of EHS and HEx patients over a 17-year period from the New Balance Falmouth Road Race were examined. Climatologic data from nearby weather stations were obtained to calculate WBGT with the Australian Bureau of Meteorology (WBGTA ) and Liljegren (WBGTL ) models...
March 29, 2018: International Journal of Biometeorology
https://www.readbyqxmd.com/read/29588114/post-marathon-cardiac-troponin-t-is-associated-with-relative-exercise-intensity
#5
A J Richardson, T Leckie, E R Watkins, D Fitzpatrick, R Galloway, R Grimaldi, P Baker
OBJECTIVES: This study aimed to investigate whether measures of cardiopulmonary fitness and relative exercise intensity were associated with high sensitivity cardiac troponin T (cTnT) rise after a road marathon. METHODS: Fifty-two marathon runners (age 39±11 years, body mass 76.2±12.9kg, height 1.74±0.09m) attended the laboratory between 2 and 3 weeks prior to attempting the Brighton Marathon, UK. Running economy at 10kmh-1 (RE10) and race pace (RERP), ventilatory threshold (VT) and VO2 max tests were completed...
March 2, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29562654/using-the-five-domains-model-to-assess-the-adverse-impacts-of-husbandry-veterinary-and-equitation-interventions-on-horse-welfare
#6
Paul McGreevy, Jeannine Berger, Nic de Brauwere, Orla Doherty, Anna Harrison, Julie Fiedler, Claudia Jones, Sue McDonnell, Andrew McLean, Lindsay Nakonechny, Christine Nicol, Liane Preshaw, Peter Thomson, Vicky Tzioumis, John Webster, Sarah Wolfensohn, James Yeates, Bidda Jones
The aim of this study was to conduct a series of paper-based exercises in order to assess the negative (adverse) welfare impacts, if any, of common interventions on domestic horses across a broad range of different contexts of equine care and training. An international panel (with professional expertise in psychology, equitation science, veterinary science, education, welfare, equestrian coaching, advocacy, and community engagement; n = 16) met over a four-day period to define and assess these interventions, using an adaptation of the domain-based assessment model...
March 18, 2018: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/29536263/human-performance-in-motorcycle-road-racing-a-review-of-the-literature
#7
REVIEW
Emanuele D'Artibale, Paul B Laursen, John B Cronin
Performance in motorcycle road racing is typically considered as the summation of interactions between rider, motorcycle, tires, and environment. Despite the substantial investments made towards the development of motorcycle technology and the business interests of manufacturers, published research focusing on the riders is relatively sparse, and a bike-centered mentality tends to dominate the sport. This manuscript reviews the known human performance aspects of motorcycle road racing and suggests directions for future research...
June 2018: Sports Medicine
https://www.readbyqxmd.com/read/29505023/prevalence-of-posttraumatic-stress-disorder-among-road-traffic-accident-survivors-a-prisma-compliant-meta-analysis
#8
Wanli Lin, Lina Gong, Miaojuan Xia, Wenjie Dai
BACKGROUND: Involvement in road traffic accidents (RTAs) may put individuals at increased risk for a wide range of psychiatric disorders, among which posttraumatic stress disorder (PTSD) presents a public health issue. However, a great disparity was observed among studies exploring the prevalence of PTSD among RTA survivors. This meta-analysis aimed to explore the pooled prevalence of PTSD among RTA survivors. METHODS: Electronic databases of PubMed, Embase, Web of Science, PsycARTICLES, PsycINFO, and CINAHL were searched to identify relevant studies...
January 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29349095/spinal-motocross-injuries-in-the-united-kingdom
#9
Rohit Singh, Amit Bhalla, Matthew Ockendon, Stuart Hay
Background: Motocross is a form of motorcycle racing held on established off-road circuits and has been a recreational and competitive sport across the world for >100 years. In the United Kingdom alone, motocross has grown into a phenomenally ambitious and popular franchise. There are >200 motocross clubs across the country, permitting >900 events annually. Purpose: To assess the current trend of spine-related motocross injuries over the past 5 years. Study Design: Descriptive epidemiology study...
January 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29199781/velocity-distribution-of-women-s-30-km-cross-country-skiing-during-olympic-games-from-2002-2014
#10
Wlodzimierz S Erdmann, Dorota Dancewicz-Nosko, Vasilios Giovanis
BACKGROUND: Within several investigated endurance sport disciplines the distribution of load of the best competitors has a manner of evenly or slightly rising velocity values. Unfortunately many other competitors have usually diminishing values or when they are very poor they have evenly values. The aim of this study was to investigate distribution of velocity within 30-km cross-country female skiers. METHODS: Cross-country skiing runs were investigated of Olympic Games 2002-2014 (Salt Lake City, Turin, Vancouver, Sochi)...
December 1, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29163232/considerations-on-the-assessment-and-use-of-cycling-performance-metrics-and-their-integration-in-the-athlete-s-biological-passport
#11
Paolo Menaspà, Chris R Abbiss
Over the past few decades the possibility to capture real-time data from road cyclists has drastically improved. Given the increasing pressure for improved transparency and openness, there has been an increase in publication of cyclists' physiological and performance data. Recently, it has been suggested that the use of such performance biometrics may be used to strengthen the sensitivity and applicability of the Athlete Biological Passport (ABP) and aid in the fight against doping. This is an interesting concept which has merit, although there are several important factors that need to be considered...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29140152/trend-analysis-of-20-years-of-fim-road-racing-grand-prix-motorcycle-world-championship
#12
Emanuele D'Artibale, Maheswaran Rohan, John B Cronin
BACKGROUND/AIM: The technological advancements in motorcycle road racing have ensured the evolution of motorcycle performance, however, it is unknown whether these advancements have resulted in increased speed and therefore risk. To better understand the top level of this sport and inform future regulations, performance-related strategies and safety procedures, this study aims at: 1) analysing and describing how the performance characteristics of the top-class of the FIM Grand Prix motorcycle world championship have changed with time; and, 2) quantifying potential interactions between performance data (i...
November 15, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29135638/mountain-biking-injuries
#13
REVIEW
Majid Ansari, Ruhollah Nourian, Morteza Khodaee
With the increasing popularity of mountain biking, also known as off-road cycling, and the riders pushing the sport into extremes, there has been a corresponding increase in injury. Almost two thirds of acute injuries involve the upper extremities, and a similar proportion of overuse injuries affect the lower extremities. Mountain biking appears to be a high-risk sport for severe spine injuries. New trends of injury patterns are observed with popularity of mountain bike trail parks and freeride cycling. Using protective gear, improving technical proficiency, and physical fitness may somewhat decrease the risk of injuries...
November 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29112626/effects-of-ad-libitum-low-carbohydrate-high-fat-dieting-in-middle-age-male-runners
#14
Alexander J Heatherly, Lauren G Killen, Ashton F Smith, Hunter S Waldman, Christie L Seltmann, Angela Hollingsworth, Eric K O'Neal
PURPOSE: This study examined the effects of a 3-wk ad libitum, low-carbohydrate (<50 g·d) high-fat (~70% of calories) (LCHF) diet on markers of endurance performance in middle-age, recreationally competitive male runners. METHODS: All subjects (n = 8) after their normal high-carbohydrate (HC) diet had anthropometric measures assessed and completed five 10-min running bouts at multiple individual race paces in the heat while physiological variables, metabolic variables, and perceptual responses were recorded...
March 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29109686/ketone-diester-ingestion-impairs-time-trial-performance-in-professional-cyclists
#15
Jill J Leckey, Megan L Ross, Marc Quod, John A Hawley, Louise M Burke
We investigated the effect of pre- "race" ingestion of a 1,3-butanediol acetoacetate diester on blood ketone concentration, substrate metabolism and performance of a cycling time trial (TT) in professional cyclists. In a randomized cross-over design, 10 elite male cyclists completed a ~31 km laboratory-based TT on a cycling ergometer programmed to simulate the 2017 World Road Cycling Championships course. Cyclists consumed a standardized meal [2 g/kg body mass (BM) carbohydrate (CHO)] the evening prior to a trial day and a CHO breakfast (2 g/kg BM CHO) with 200 mg caffeine on the morning of a trial day...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29067854/sex-and-age-related-differences-in-half-marathon-performance-and-competitiveness-in-the-world-s-largest-half-marathon-the-g%C3%A3-teborgsvarvet
#16
B Knechtle, P T Nikolaidis
In road runners, the age-related performance decline has been well investigated for marathoners, but little is known for half-marathoners. We analysed data from 138,616 runners (48,148 women and 90,469 men) competing between 2014 and 2016 in GöteborgsVarvet, the world's largest half-marathon. The men-to-women ratio in participants increased with age, the fastest race times were observed in age groups ˂35 and 35-39 years in women and in age group 35-39 years in men, the main effect of sex and the sex × age group interaction on race time were trivial, and the competitiveness was denser in men and in the younger age groups...
January 2018: Research in Sports Medicine
https://www.readbyqxmd.com/read/28961410/overcoming-the-host-immune-response-to-adeno-associated-virus-gene-delivery-vectors-the-race-between-clearance-tolerance-neutralization-and-escape
#17
REVIEW
Federico Mingozzi, Katherine A High
Immune responses in gene therapy with adeno-associated virus (AAV) vectors have been the object of almost two decades of study. Although preclinical models helped to define and predict certain aspects of interactions between the vector and the host immune system, most of our current knowledge has come from clinical trials. These studies have allowed development of effective interventions for modulating immunotoxicities associated with vector administration, resulting in therapeutic advances. However, the road to full understanding and effective modulation of immune responses in gene therapy is still long; the determinants of the balance between tolerance and immunogenicity in AAV vector-mediated gene transfer are not fully understood, and effective solutions for overcoming preexisting neutralizing antibodies are still lacking...
September 29, 2017: Annual Review of Virology
https://www.readbyqxmd.com/read/28806276/circulating-progenitor-cell-response-to-exercise-in-wheelchair-racing-athletes
#18
Grace M Niemiro, Thomas Edwards, J P Barfield, Joseph W Beals, Elizabeth M Broad, Robert W Motl, Nicholas A Burd, Lara A Pilutti, Michael De Lisio
INTRODUCTION: Circulating progenitor cells (CPCs) are a heterogeneous population of stem/progenitor cells in peripheral blood that participate in tissue repair. CPC mobilization has been well characterized in able-bodied persons, but has not been previously investigated in wheelchair racing athletes. The purpose of this study was to characterize CPC and CPC sub-population mobilization in elite wheelchair racing athletes in response to acute, upper-extremity aerobic exercise to determine if CPC responses are similar to ambulatory populations...
August 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28798038/infographics-winning-road-cycle-races-a-team-sky-perspective
#19
EDITORIAL
Neil Heron, Richard Usher, Derick MacLeod, Inigo Sarrieguil, Juan Mercadel, Mark A Tully
No abstract text is available yet for this article.
August 10, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28746232/the-effect-of-topical-thiocolchicoside-in-preventing-and-reducing-the-increase-of-muscle-tone-stiffness-and-soreness-a-real-life-study-on-top-level-road-cyclists-during-stage-competition
#20
Marco Gervasi, Davide Sisti, Piero Benelli, Eneko Fernández-Peña, Cinzia Calcabrini, Marco B L Rocchi, Luigi Lanata, Michela Bagnasco, Andrea Tonti, Stocchi Vilberto, Piero Sestili
In professional road cyclists, the majority of overuse injuries affect the lower limbs and are mostly represented by contractures or muscle shortening, characterized by an increase of tone and stiffness and a variation of elasticity. Treatment and prevention of these specific conditions may include physical, supplementary, and pharmacologic support. The aim of this real-life study was to determine: first, the alterations of tone, stiffness, elasticity, and soreness of rectus femoris (RF) and biceps femoris (BF) in top class cyclists engaged in 3 multistage races, and second, whether any variable in the management of the athletes may affect the prevention and/or reduction of such alterations...
July 2017: Medicine (Baltimore)
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