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https://www.readbyqxmd.com/read/29541136/physical-and-physiological-demands-of-futsal
#1
REVIEW
Naser Naser, Ajmol Ali, Paul Macadam
Futsal, the 5-a-side version of soccer (i.e. 1 goalkeeper and 4 outfield players), was introduced in 1930 and continues to grow in popularity around the world. Competitive games comprise of two 20-min periods of high-intensity and intermittent activities requiring substantial physical, tactical, and technical efforts from the players. A greater understanding of the physical and skill requirements will aid the development of futsal and enable practitioners to undertake appropriate training regimes for the demands of the sport...
December 2017: Journal of Exercise Science and Fitness
https://www.readbyqxmd.com/read/29501143/dilute-and-shoot-coupled-to-nanoflow-liquid-chromatography-high-resolution-mass-spectrometry-for-the-determination-of-drugs-of-abuse-and-sport-drugs-in-human-urine
#2
Jaime Alcántara-Durán, David Moreno-González, Miriam Beneito-Cambra, Juan F García-Reyes
In this work, a sensitive nanoflow liquid chromatography high-resolution mass spectrometry screening method has been developed for the determination of multiclass drugs of abuse and sport drugs in human urine. 81 drugs belonging to different multiclass pharmaceuticals were targeted. The method is based on the use of a nanoLC column (75 µm × 150 mm, 3 µm particle size and 100 Å pore) with the nanospray emitter tip integrated so that dead volumes are significantly minimized. Data acquisition method included both full-scan and all ion fragmentation experiments using an Orbitrap analyser (Q-Exactive) operated in the positive ionization mode...
May 15, 2018: Talanta
https://www.readbyqxmd.com/read/29474386/peak-oxygen-uptake-in-paralympic-sitting-sports-a-systematic-literature-review-meta-and-pooled-data-analysis
#3
Julia Kathrin Baumgart, Berit Brurok, Øyvind Sandbakk
BACKGROUND: Peak oxygen uptake (VO2peak) in Paralympic sitting sports athletes represents their maximal ability to deliver energy aerobically in an upper-body mode, with values being influenced by sex, disability-related physiological limitations, sport-specific demands, training status and how they are tested. OBJECTIVES: To identify VO2peak values in Paralympic sitting sports, examine between-sports differences and within-sports variations in VO2peak and determine the influence of sex, age, body-mass, disability and test-mode on VO2peak...
2018: PloS One
https://www.readbyqxmd.com/read/29472992/different-intensities-of-basketball-drills-affect-jump-shot-accuracy-of-expert-and-junior-players
#4
Giuseppe Marcolin, Nicola Camazzola, Fausto Antonio Panizzolo, Davide Grigoletto, Antonio Paoli
Background: In basketball a maximum accuracy at every game intensity is required while shooting. The aim of the present study was to investigate the acute effect of three different drill intensity simulation protocols on jump shot accuracy in expert and junior basketball players. Materials & Methods: Eleven expert players (age 26 ± 6 yrs, weight 86 ± 11 kg, height 192 ± 8 cm) and ten junior players (age 18 ± 1 yrs, weight 75 ± 12 kg, height 184 ± 9 cm) completed three series of twenty jump shots at three different levels of exertion...
2018: PeerJ
https://www.readbyqxmd.com/read/29470363/a-physiological-and-sport-specific-comparison-between-division-i-and-division-ii-italian-male-field-hockey-players
#5
Sandro Bartolomei, Federico Nigro, Luca Gubellini, Simone Ciacci, Franco Merni, Filippo Treno, Matteo Cortesi, Gabriele Semprini
The purpose of the present study was to compare the anthropometric and performance profiles of division I (D1) and division II (D2) Italian field hockey players.Fifteen DI players and fifteen D2 players (age = 25.4 ± 5.2 y; body mass = 78.5 ± 9.0 kg; body height = 179.6 ± 7.8 cm) were assessed on one occasion for anthropometry, body composition, physiological measurements and sport-specific skills. Differences between the two groups were evaluated using a one-way analysis of variance. Pearson correlations were used to examine relationships between the different measurements...
February 20, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29291455/high-resolution-full-scan-liquid-chromatography-mass-spectrometry-comprehensive-screening-in-sports-antidoping-urine-analysis
#6
Wadha Abushareeda, Ariadni Vonaparti, Khadija Al Saad, Moneera Almansoori, Mbarka Meloug, Amal Saleh, Rodrigo Aguilera, Yiannis Angelis, Peter L Horvatovich, Arjen Lommen, Mohammed Alsayrafi, Costas Georgakopoulos
The aim of this paper is to present the development and validation of a high-resolution full scan (HR-FS) electrospray ionization (ESI) liquid chromatography coupled to quadrupole Orbitrap mass spectrometer (LC/Q/Orbitrap MS) platform for the screening of prohibited substances in human urine according to World Antidoping Agency (WADA) requirements. The method was also validated for quantitative analysis of six endogenous steroids (epitestosterone, testosterone, 5α-dihydrotestosterone, dehydroepiandrosterone, androsterone and etiocholanolone) in their intact sulfates form...
March 20, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29248809/the-identification-of-high-potential-archers-based-on-fitness-and-motor-ability-variables-a-support-vector-machine-approach
#7
Zahari Taha, Rabiu Muazu Musa, Anwar P P Abdul Majeed, Muhammad Muaz Alim, Mohamad Razali Abdullah
Support Vector Machine (SVM) has been shown to be an effective learning algorithm for classification and prediction. However, the application of SVM for prediction and classification in specific sport has rarely been used to quantify/discriminate low and high-performance athletes. The present study classified and predicted high and low-potential archers from a set of fitness and motor ability variables trained on different SVMs kernel algorithms. 50 youth archers with the mean age and standard deviation of 17...
February 2018: Human Movement Science
https://www.readbyqxmd.com/read/29158617/pertussis-outbreak-in-polish-shooters-with-adverse-event-analysis
#8
Monika Skrzypiec-Spring, Jarosław Krzywański, Monika Karlikowska-Skwarnik, Andrzej Pokrywka, Hubert Krysztofiak, Aneta Nitsch-Osuch, Ernest Kuchar
In addition to different injuries, infections are the most common reason for giving up training altogether or reducing its volume and intensity, as well as a lack of opportunities to participate in sports competitions. Nowadays, a slow but constant re-emergence of pertussis, especially among teenagers and young adults, including athletes, can be observed. This paper describes an outbreak of pertussis among professional Polish shooters, focusing on the transmission of Bordetella pertussis infection between members of the national team, its influence on performance capacity and adverse event analysis...
September 2017: Biology of Sport
https://www.readbyqxmd.com/read/29128127/a-crossbow-suicide
#9
Laura Panata, Massimo Lancia, Alessandra Persichini, Sergio Scalise Pantuso, Mauro Bacci
The crossbow is an ancient ranged weapon originally conceived for war and hunting. Although nowadays its use in warfare has been surpassed by firearms, it continues to be used in hunting, sports and recreation. The authors present the case of a 40-year-old man who suffered from severe depression. When his condition further deteriorated, doctors ordered a forced hospitalization but, just a few hours before the measure became effective, the man committed suicide using a crossbow. The autopsy and police investigation showed possession of the crossbow darts which the man used to shoot himself in the head...
December 2017: Forensic Science International
https://www.readbyqxmd.com/read/29124507/pre-performance-physiological-state-heart-rate-variability-as-a-predictor-of-shooting-performance
#10
E Ortega, C J K Wang
Heart rate variability (HRV) is commonly used in sport science for monitoring the physiology of athletes but not as an indicator of physiological state from a psychological perspective. Since HRV is established to be an indicator of emotional responding, it could be an objective means of quantifying an athlete's subjective physiological state before competition. A total of 61 sport shooters participated in this study, of which 21 were novice shooters, 19 were intermediate shooters, and 21 were advanced level shooters...
November 10, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/29084416/analysis-for-higenamine-in-urine-by-means-of-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry-interpretation-of-results
#11
Krzysztof Grucza, Dorota Kwiatkowska, Katarzyna Kowalczyk, Mariola Wicka, Mirosław Szutowski, Piotr Chołbiński
Higenamine (Norcoclaurine) is a very popular substance in Chinese medicine and is present in many plants. The substance may be also found in supplements or nutrients, consumption of which may result in violation of anti-doping rules. Higenamine is prohibited in sport at all times and included in Class S3 (β-2-agonists) of the World Anti-Doping Agency (WADA) 2017 Prohibited List. The presence of higenamine in urine samples at concentrations greater than or equal to 10 ng/mL constitutes an adverse analytical finding (AAF)...
October 30, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29051897/the-effect-of-regular-season-rest-on-playoff-performance-among-players-in-the-national-basketball-association
#12
John W Belk, Hayden A Marshall, Eric C McCarty, Matthew J Kraeutler
BACKGROUND: There has been speculation that rest during the regular season for players in the National Basketball Association (NBA) improves player performance in the postseason. PURPOSE: To determine whether there is a correlation between the amount of regular-season rest among NBA players and playoff performance and injury risk in the same season. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: The Basketball Reference and Pro Sports Transactions archives were searched from the 2005 to 2015 seasons...
October 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29026261/prevention-of-noise-induced-hearing-loss-from-recreational-firearms
#13
REVIEW
Deanna K Meinke, Donald S Finan, Gregory A Flamme, William J Murphy, Michael Stewart, James E Lankford, Stephen Tasko
In the United States and other parts of the world, recreational firearm shooting is a popular sport that puts the hearing of the shooter at risk. Peak sound pressure levels (SPLs) from firearms range from ∼140 to 175 dB. The majority of recreational firearms (excluding small-caliber 0.17 and 0.22 rifles and air rifles) generate between 150 and 165 dB peak SPLs. High-intensity impulse sounds will permanently damage delicate cochlear structures, and thus individuals who shoot firearms are at a higher risk of bilateral, high-frequency, noise-induced hearing loss (NIHL) than peer groups who do not shoot...
November 2017: Seminars in Hearing
https://www.readbyqxmd.com/read/28944650/acute-and-overuse-injuries-in-elite-archers
#14
Claudia K Niestroj, Volker Schöffl, Thomas Küpper
BACKGROUND: To evaluate type and incidence of acute and overuse injuries in high level European and German competitive archers. METHODS: Participants of the German National Indoor Championship (DM) 2012 in Solingen, Germany, and European Outdoor Championship (EM) 2012 in Amsterdam, The Netherlands, participated in the study. The design was a retrospective cohort study performed by a questionnaire. Data obtained included standard personal data (age, gender), training habits, draw weight, competition experience, and detailed data about acute and overuse injuries that occurred during the entire sporting career of the archers...
September 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28919494/shoulder-injury-in-water-polo-a-systematic-review-of-incidence-and-intrinsic-risk-factors
#15
REVIEW
Andrea H Miller, Kerrie Evans, Roger Adams, Gordon Waddington, Jeremy Witchalls
OBJECTIVES: Water polo is a popular water-based contact sport that involves swimming, throwing and defending. Cumulatively, these repetitive overhead activities are thought to increase the risk of shoulder injury and, subsequently to affect players' physical conditioning as well as team performance. The purpose of this review was to examine available evidence relating to shoulder injury rates and risk factors for shoulder injury in water polo. DESIGN: Systematic review METHODS: CINAHL, AUSPORT, Pubmed, Pedro and SPORTDiscus databases were searched for original research papers using the predefined terms ("water polo") AND (shoulder OR glenohumeral* OR arm OR "upper limb")...
April 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28910584/problematic-gaming-behavior-among-finnish-junior-high-school-students-relation-to-socio-demographics-and-gaming-behavior-characteristics
#16
Niko Männikkö, Heidi Ruotsalainen, Zsolt Demetrovics, Olatz Lopez-Fernandez, Laura Myllymäki, Jouko Miettunen, Maria Kääriäinen
Multiplatform digital media use and gaming have been increased in recent years. The aim of this study was to examine associations between sociodemographics and digital gaming behavior characteristics (i.e., gaming time, medium, and genres) with problematic gaming behavior in adolescents. A convenience sample of Finnish junior high school students (n = 560; mean age 14 years, ranging from 12 to 16 years) participated in the cross-sectional survey, of which, 83% (n = 465) reported having played digital games regularly...
September 14, 2017: Behavioral Medicine
https://www.readbyqxmd.com/read/28902760/common-ice-hockey-injuries-and-treatment-a-current-concepts-review
#17
William Mosenthal, Michael Kim, Robert Holzshu, Bryan Hanypsiak, Aravind Athiviraham
Injuries are common in ice hockey, a contact sport where players skate at high speeds on a sheet of ice and shoot a vulcanized rubber puck in excess of one hundred miles per hour. This article reviews the diagnoses and treatment of concussions, injuries to the cervical spine, and lower and upper extremities as they pertain to hockey players. Soft tissue injury of the shoulder, acromioclavicular joint separation, glenohumeral joint dislocation, clavicle fractures, metacarpal fractures, and olecranon bursitis are discussed in the upper-extremity section of the article...
September 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28873039/especial-skills-in-experienced-archers
#18
Mahdi Nabavinik, Ali Abaszadeh, Mehrab Mehranmanesh, David A Rosenbaum
Especial skills are skills that are distinctive by virtue of massive practice within the narrow contexts in which they are expressed. In the first demonstration of especial skills, Keetch, Schmidt, Lee, and Young (2005) showed that experienced basketball players are better at shooting baskets from the foul line, where they had massive amounts of practice, than would expected from their success at other locations closer to or farther from the basket. Similar results were obtained for baseball throwing. The authors asked whether especial skills hold in archery, a sport requiring less movement...
September 5, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28771061/comparison-of-performance-levels-and-sex-on-sprint-race-performance-in-the-biathlon-world-cup
#19
Harri Luchsinger, Jan Kocbach, Gertjan Ettema, Øyvind Sandbakk
Biathlon is an Olympic sport combining cross-country skiing with the skating technique and rifle shooting. The sprint (7.5 km for women and 10 km for men) includes two shootings between the three laps of skiing. The aims of the current study are to compare biathletes of different performance-levels and sex on total race time and performance-determining factors of sprint races in the biathlon World Cup. The top 10-performers (G1-10) and results within rank 21-30 (G21-30) in 47 sprint races during the 2011/2012 to 2015/2016 World Cup seasons were compared regarding total race time, course time, shooting time, range time, shooting performance (rate of hits) and penalty time...
August 3, 2017: International Journal of Sports Physiology and Performance
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
#20
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
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