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https://www.readbyqxmd.com/read/28105335/detection-of-stanozolol-in-the-urine-of-athletes-at-a-pg-level-the-possibility-of-passive-exposure
#1
Christina Tsitsimpikou, Konstantinos Tsarouhas, Demetrios A Spandidos, Aristides M Tsatsakis
Stanozolol is a synthetic heterocyclic steroid with anabolic and androgenic properties, which has been abused by several high-profile professional athletes. Stanozolol is also used in veterinary medicine to increase appetite, cause weight gain and treat certain types of anemia. The detection of stanozolol metabolites in human urine for doping control purposes depends on the analytical method applied. The most commonly applied methods in the World Anti-Doping Agency (WADA)-accredited doping control laboratories are gas chromatography/high-resolution mass spectrometry (GC/HRMS) or gas chromatography-mass spectrometry (GC/MS/MS)...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28104353/fluid-energy-and-nutrient-recovery-via-ad-libitum-intake-of-different-fluids-and-food
#2
Nadia Campagnolo, Elizaveta Iudakhina, Christopher Irwin, Matthew Schubert, Gregory R Cox, Michael Leveritt, Ben Desbrow
INTRODUCTION: This study compared the effects of ad libitum consumption of different beverages and foods on fluid retention and nutrient intake following exercise. METHODS: Ten endurance trained males (mean±SD; Age=25.3±4.9years, VO2max=63.0±7.2ml·kg·min(-1)) performed four trials employing a counterbalanced, crossover design. Following 60min of exercise (matched for energy expenditure and fluid loss) participants consumed either water (W1 and W2), a sports drink (Powerade® (P)) or a milk-based liquid meal supplement (Sustagen Sport® (SS)) over a four hour recovery period...
January 16, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28103619/pregnant-women-in-sport-climbing-is-there-a-higher-risk-for-preterm-birth
#3
Jan Drastig, David Hillebrandt, Werner Rath, Thomas Küpper
Sport climbing is a popular recreational sport with an increasing proportion of female athletes. International recommendations emphasize the physical and mental benefits of regular sport activity during any uncomplicated pregnancy. In this context, sport climbing is associated with a high risk potential.The aim of this study was to examine if there is a higher risk for preterm birth in active climbing athletes.Original manuscript.A retrospective self-report online survey in the German language collected data between September 2012 and November 2013...
January 19, 2017: Zeitschrift Für Geburtshilfe und Neonatologie
https://www.readbyqxmd.com/read/28102875/prevalence-of-abnormal-electrocardiograms-in-swiss-elite-athletes-detected-with-modern-screening-criteria
#4
Tilman Perrin, Lukas Daniel Trachsel, Simon Schneiter, Andrea Menafoglio, Silvia Albrecht, Tony Pirrello, Prisca Eser, Laurent Roten, Boris Gojanovic, Matthias Wilhelm
AIMS OF THE STUDY: Sudden cardiac arrest in athletes is a rare but dramatic event. The value of a routine electrocardiogram (ECG) during preparticipation screening (PPS) remains controversial, partly because of the relatively high number of false positive findings. Our study aimed to evaluate the prevalence of abnormal ECGs in consecutive Swiss elite athletes, overall and with regard to different sports classes, using modern screening criteria. METHODS: We analysed the 12-lead resting ECGs of high-level elite athletes (age ≥14 years) recorded at the Swiss Olympic Medical Centre Magglingen between 2013 and 2016 during routine PPS...
January 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28102488/performance-and-side-effects-of-supplementation-with-n-acetylcysteine-a-systematic-review-and-meta-analysis
#5
REVIEW
Kate Rhodes, Andrea Braakhuis
BACKGROUND: N-Acetylcysteine (NAC) is a promising antioxidant supplement with potential as an acute strategy to enhance performance in elite sport, but there are concerns about its side effects with high doses. OBJECTIVE: To review the current literature and evaluate the effects of NAC supplementation on sport performance and the risk of adverse effects. METHODS: The literature up to May 2016 was searched on MEDLINE (PubMed), EMBASE, SPORTDiscus, Google Scholar and Scopus databases to identify all studies investigating the effects of NAC supplementation on exercise performance and/or side effects experienced...
January 19, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28101712/herbicides-and-trace-metals-in-urban-waters-in-melbourne-australia-2011-12-concentrations-and-potential-impact
#6
Mayumi Allinson, Pei Zhang, AnhDuyen Bui, Jackie H Myers, Vincent Pettigrove, Gavin Rose, Scott A Salzman, Robert Walters, Graeme Allinson
Urban stormwater samples were collected from five aquatic systems in Melbourne, Australia, on six occasions between October 2011 and March 2012 and tested for 30 herbicides and 14 trace metals. Nineteen different herbicides were observed in one or more water samples from the five sites; chemicals observed at more than 40% of sites were simazine (100%), MCPA (83%), diuron (63%) and atrazine (53%). Using the toxicity unit (TU) concept to assess potential risk to aquatic ecosystems, none of the detected herbicides were considered to pose an individual, group or collective short-term risk to fish or zooplankton in the waters studied...
January 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28100160/determining-the-potential-benefits-of-yoga-in-chronic-stroke-care-a-systematic-review-and-meta-analysis
#7
Tharshanah Thayabaranathan, Nadine E Andrew, Maarten A Immink, Susan Hillier, Philip Stevens, Rene Stolwyk, Monique Kilkenny, Dominique A Cadilhac
BACKGROUND: Survivors of stroke have long-term physical and psychological consequences that impact their quality of life. Few interventions are available in the community to address these problems. Yoga, a type of mindfulness-based intervention, is shown to be effective in people with other chronic illnesses and may have the potential to address many of the problems reported by survivors of stroke. OBJECTIVES: To date only narrative reviews have been published. We sought to perform, the first systematic review with meta-analyses of randomized controlled trials (RCTs) that investigated yoga for its potential benefit for chronic survivors of stroke...
January 19, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28099198/osteomyelitis-of-the-navicular-bone-a-case-report
#8
Nobuyuki Kumahashi, Suguru Kuwata, Shinji Imade, Yuji Uchio
A 16-year-old boy developed left foot pain of unknown cause that was unresponsive to conservative treatment, associated with fever and difficulty walking. He was admitted to our hospital with osteomyelitis of the accessory and body of the navicular bone. Surgery could not be performed because the patient had been diagnosed with Wiskott-Aldrich syndrome. After antibiotic therapy, laboratory abnormalities and pain had resolved. One year after treatment, the patient had returned to his original level of sports activity...
January 17, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28098836/association-of-school-environment-and-after-school-physical-activity-with-health-related-physical-fitness-among-junior-high-school-students-in-taiwan
#9
Kai-Yang Lo, Min-Chen Wu, Shu-Chin Tung, City C Hsieh, Hsueh-Hua Yao, Chien-Chang Ho
The relationship between students' school environment and exercise habits is complex, and is affected by numerous factors. However, the few studies that have been conducted on this relationship have reported inconsistent results, especially regarding Taiwanese students. We conducted this cross-sectional study to investigate the association of school environment and after-school physical activity with health-related physical fitness in Taiwanese adolescents. Data were drawn from a national survey conducted by the Ministry of Education in Taiwan in 2008 of health-related physical fitness measurements among junior high school students (649,442 total) in grades seven to nine...
January 15, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28098706/current-trends-in-ulnar-collateral-ligament-reconstruction-surgery-among-newly-trained-orthopaedic-surgeons
#10
Ryan M Degen, Christopher L Camp, Johnathan A Bernard, David M Dines, David W Altchek, Joshua S Dines
INTRODUCTION: Ulnar collateral ligament (UCL) reconstructions are being performed with an increasing annual incidence. The purpose of this study was to evaluate trends in UCL surgery among recently trained orthopaedic surgeons. METHODS: The American Board of Orthopaedic Surgeons (ABOS) database was used to identify all UCL reconstructions from 2004 to 2013. Procedures were identified by Current Procedural Terminology (CPT) codes and verified by International Classification of Disease, Ninth Revision (ICD-9) codes...
February 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28098055/nonsurgical-treatment-of-mason-type-ii-radial-head-fractures-in-athletes-a-retrospective-study
#11
M Guzzini, A Vadalà, A Agrò, V Di Sanzo, D Pironi, A Redler, P Serlorenzi, L Proietti, C Civitenga, D Mazza, R M Lanzetti, Andrea Ferretti
OBJECTIVE: The best treatment for moderately displaced radial head fractures (Mason type II) still remains controversial. In cases of isolated fractures, there is no evidence that a fragment displacement of ≥ 2 mm gives poor results in conservatively treated fractures. PATIENTS AND METHODS: We retrospectively reviewed 52 patients (31M, 21F) affected by an isolated Mason type II fracture, treated with a long arm cast for two weeks between 2008 and 2013. All patients had practiced sports before being injured...
September 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28095065/monitoring-fatigue-status-in-elite-team-sport-athletes-implications-for-practice
#12
Robin T Thorpe, Greg Atkinson, Barry Drust, Warren Gregson
The increase in competition demands in elite team sports over recent years has prompted much attention from researchers and practitioners into the monitoring of adaptation and fatigue in athletes. Monitoring of fatigue and gaining an understanding of athlete status may also provide insights and beneficial information pertaining to player availability, injury and illness risk. Traditional methods used to quantify recovery and fatigue in team sports such as maximal physical performance assessments may not be feasible in order to detect variations in fatigue status throughout competitive periods...
January 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28094488/effects-of-leg-contrast-strength-training-on-sprint-agility-and-repeated-change-of-direction-performance-in-male-soccer-players
#13
Mehréz Hammami, Yassine Negra, Roy J Shephard, Mohamed Souhaiel Chelly
BACKGROUND: Contrast training is popular technique among individuals who are involved in dynamic sports, having as its goal an increase in dynamic muscular performance. It is characterized by the use of high and low loads in the same strength training session. The present investigation aimed to determine the effects of adding 8--weeks of contrast strength training (CSTP) to regular soccer practice in U--17 male soccer players during the competitive season. We hypothesized that CSTP would enhance their performance...
January 17, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28094487/blood-doping-at-the-olympic-games
#14
Kenneth D Fitch
BACKGROUND: The objective of this paper was to review our knowledge of athletes who have, are believed to have or have attempted to engage in blood doping to enhance their performance at an Olympic Games. METHOD: The paper focused on the Games from Munich 1972 to London 2012 and the author had a medical role at each of the Olympics that is discussed. RESULTS: The study revealed that Olympic athletes have benefitted from manipulating their blood by re--infusion of autologous or infusion of homologous blood and by administering erythropoiesis stimulating agents, notably the three generations of erythropoietins...
January 17, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28093372/does-trainee-involvement-in-fluoroscopic-injections-affect-fluoroscopic-time-immediate-pain-reduction-and-complication-rate
#15
Daniel Cushman, Masaru Teramoto, Bradley Curtis, David T Lee, Austin Marcolina, Zachary McCormick
BACKGROUND: Patients have expressed concern about undergoing procedures involving trainees, even with direct attending physician supervision. Little literature examines the effect of trainee involvement on patient outcomes. OBJECTIVE: We aimed to evaluate the effect of trainee involvement on patient complications, immediate pain reduction, and fluoroscopic time for different fluoroscopic injection types. DESIGN: Retrospective review. SETTING: Four academic outpatient institutions with ACGME-accredited residency (PM&R or Anesthesiology) or fellowship (Sports Medicine or Pain Medicine) programs from 2000-2015...
January 13, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28092217/development-construct-validity-and-test-retest-reliability-of-a-field-based-wheelchair-mobility-performance-test-for-wheelchair-basketball
#16
Annemarie M H de Witte, Marco J M Hoozemans, Monique A M Berger, Rienk M A van der Slikke, Lucas H V van der Woude, Dirkjan H E J Veeger
The aim of this study was to develop and describe a wheelchair mobility performance test in wheelchair basketball and to assess its construct validity and reliability. To mimic mobility performance of wheelchair basketball matches in a standardised manner, a test was designed based on observation of wheelchair basketball matches and expert judgement. Forty-six players performed the test to determine its validity and 23 players performed the test twice for reliability. Independent-samples t-tests were used to assess whether the times needed to complete the test were different for classifications, playing standards and sex...
January 16, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28092056/a-randomised-placebo-controlled-crossover-study-investigating-the-effects-of-nicotine-gum-on-strength-power-and-anaerobic-performance-in-nicotine-na%C3%A3-ve-active-males
#17
Toby Mündel, Marine Machal, Darryl J Cochrane, Matthew J Barnes
BACKGROUND: Nicotine use amongst athletes is high and increasing, especially team sports, yet the limited previous studies investigating the performance consequences of this behaviour have not examined the effects of the principal active ingredient, nicotine, per se. Therefore, we determined whether nicotine gum affected muscular and anaerobic performance. METHODS: Nine active males (24 ± 3 years) completed three trials in a random order in which 20 min prior to testing they chewed 2 mg (NIC-2), 4 mg (NIC-4) nicotine or flavour-matched placebo (PLA) gum...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28091825/preoperative-sport-improves-the-outcome-of-lumbar-disc-surgery-a-prospective-monocentric-cohort-study
#18
Anja Tschugg, Sara Lener, Sebastian Hartmann, Matthias Wildauer, Wolfgang N Löscher, Sabrina Neururer, Claudius Thomé
A lumbar disc herniation resulting in surgery may be an incisive event in a patient's everyday life. The patient's recovery after sequestrectomy may be influenced by several factors. There is evidence that regular physical activity can lower pain perception and improve the outcome after surgery. For this purpose, we hypothesized that patients performing regular sports prior to lumbar disc surgery might have less pain perception and disability thereafter. Fifty-two participants with a single lumbar disc herniation confirmed on MRI treated by a lumbar sequestrectomy were included in the trial...
January 13, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28091446/correlation-between-athlete-training-intensity-and-cardiac-performance
#19
T Xiao, Y Zhang
OBJECTIVE: An effective analysis of correlation between training intensity of athletes and cardiac performance is done to develop scientific and reasonable exercise program and to promote health of athletes. METHODS: During December 2013-December 2015, 3600 students from different sports schools were selected for the test. All the athletes were randomly grouped, that is half-hour running group, one-hour running group and 90 -minute running group, which are named A, B, C groups respectively...
February 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28090147/regression-shrinkage-and-neural-models-in-predicting-the-results-of-400-metres-hurdles-races
#20
K Przednowek, J Iskra, A Maszczyk, M Nawrocka
This study presents the application of regression shrinkage and artificial neural networks in predicting the results of 400-metres hurdles races. The regression models predict the results for suggested training loads in the selected three-month training period. The material of the research was based on training data of 21 Polish hurdlers from the Polish National Athletics Team Association. The athletes were characterized by a high level of performance. To assess the predictive ability of the constructed models a method of leave-one-out cross-validation was used...
December 2016: Biology of Sport
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