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https://www.readbyqxmd.com/read/28088227/simplified-chinese-version-of-the-forgotten-joint-score-fjs-for-patients-who-underwent-joint-arthroplasty-cross-cultural-adaptation-and-validation
#1
Shiqi Cao, Ning Liu, Wuxiang Han, Yunpeng Zi, Fan Peng, Lexiang Li, Qiwei Fu, Yi Chen, Weijie Zheng, Qirong Qian
BACKGROUND: The Forgotten Joint Score (FJS) is a newly developed health-related quality of life (HRQoL) questionnaire designed to evaluate the awareness after total knee arthroplasty (TKA). This study cross-culturally adapted and psychometrically validated a simplified Chinese version of the FJS (SC-FJS). METHODS: Cross-cultural adaptation was performed according to the internationally recognized guidelines. One-hundred and fifty participants who underwent primary TKA were recruited in this study...
January 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28081584/-mini-open-approach-shows-good-results-in-treatment-of-femoroacetabular-impingement
#2
Stephanie Maria Kirschbaum, Frank Sitterlee, Carsten Perka, Michael Müller
Background Femoroacetabular impingement (FAI) describes a painful, abnormal (bony) contact between the femoral neck and acetabulum, which, if left untreated, contributes to early osteoarthritis (OA) of the hip. Despite its flat learning curve and long operation times, hip arthroscopy has been used increasingly often in recent years in the surgery of femoroacetabular impingement. The mini-open technique (MOT) offers a possible alternative that addresses the abnormal morphological prominence and allows minimally invasive clearance of hip motion...
January 12, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28081033/performance-aspects-and-physiological-responses-in-male-amateur-boxing-competitions-a-brief-review
#3
Maamer Slimani, Helmi Chaabène, Philip Davis, Emerson Franchini, Karim Chamari
Boxing is one of the most popular striking combat sports in the world. The aim of this review was to present data concerning performance analysis (time-motion and technical/tactical analysis) and physiological responses (i.e., blood lactate concentration [BLC], heart rate and/or oxygen consumption) during novice and elite male simulated and official amateur boxing competitions in any age category. The present review shows that boxing competition is a high-intensity intermittent striking combat sport. Typically, the activity-to-rest ratio was higher in elite (18:1) than novice (9:1) boxers and significant differences were observed between rounds (1 round=16:1, 2 round=8:1, and 3 round=6:1) in novice boxers...
January 4, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28080323/oral-adenosine-5-triphosphate-atp-administration-increases-postexercise-atp-levels-muscle-excitability-and-athletic-performance-following-a-repeated-sprint-bout
#4
Eduardo O De Souza, John A Rathmacher, Matthew H Sharp, Ryan P Lowery, Kevin A Shields, Jeremy M Partl, Jacob M Wilson, Ralf Jäger, Martin Purpura
OBJECTIVE: Oral adenosine-5'-triphosphate (ATP) administration has failed to increase plasma ATP levels; however, chronic supplementation with ATP has shown to increase power, strength, lean body mass, and blood flow in trained athletes. The purpose of this study was to investigate the effects of ATP supplementation on postexercise ATP levels and on muscle activation and excitability and power following a repeated sprint bout. METHODS: In a double-blind, placebo-controlled, randomized design, 42 healthy male individuals were given either 400 mg of ATP as disodium salt or placebo for 2 weeks prior to an exercise bout...
January 12, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28078945/influences-of-population-size-and-density-on-birthplace-effects
#5
David J Hancock, Patrícia Coutinho, Jean Côté, Isabel Mesquita
Contextual influences on talent development (e.g., birthplace effects) have become a topic of interest for sport scientists. Birthplace effects occur when being born in a certain city size leads to participation or performance advantages, typically for those born in smaller or mid-sized cities. The purpose of this study was to investigate birthplace effects in Portuguese volleyball players by analysing city size, as well as population density - an important but infrequently used variable. Participants included 4062 volleyball players (Mage = 33), 53...
January 12, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28068954/cognitively-and-physically-demanding-exergaming-to-improve-executive-functions-of-children-with-attention-deficit-hyperactivity-disorder-a-randomised-clinical-trial
#6
Valentin Benzing, Mirko Schmidt
BACKGROUND: Attention deficit hyperactivity disorder (ADHD) is one of the most common mental disorders observed in childhood and adolescence. Its key symptoms - reduced attention, poor control of impulses as well as increased motor activity - are associated with decreased executive functions performance, finally affecting academic achievement. Although drug treatments usually show some effect, alternative treatments are continually being sought, due to lack of commitment and possible side effects...
January 10, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28067741/hypertensive-medications-in-competitive-athletes
#7
Henry Pelto
Hypertension is the most common cardiovascular disease in athletes. It is an important cause of long-term morbidity and mortality, even in a fit, athletic population. Management options to reduce these long-term risks exist that have minimal impact on athletic performance. Identification and management of underlying lifestyle factors and diseases that may lead to secondary hypertension is critical. These include substance abuse, medications, and underlying medical conditions. After evaluation and management of these issues, medications can be used to reduce blood pressure...
January 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28058460/-risk-assessment-of-synephrine-in-dietary-supplements
#8
Nadiya Bakhyia, Birgit Dusemund, Klaus Richter, Oliver Lindtner, Karen Ildico Hirsch-Ernst, Bernd Schäfer, Alfonso Lampen
Synephrine is a sympathomimetic phenylethylamine derivative that occurs naturally in citrus fruits. It is often added to dietary supplements intended for weight loss and enhancement of sports performance, typically in the form of Citrus aurantium extracts and in many cases in combination with caffeine. The health risks of synephrine were evaluated on the basis of the available toxicological data and in accordance to the EFSA guidance on the safety assessment of botanicals and botanical preparations intended for use in food supplements...
January 5, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28054658/early-functional-rehabilitation-versus-traditional-immobilization-for-surgical-achilles-tendon-repair-after-acute-rupture-a-systematic-review-of-overlapping-meta-analyses
#9
Jia-Guo Zhao, Xiao-Hui Meng, Lin Liu, Xian-Tie Zeng, Shi-Lian Kan
Several meta-analyses comparing early functional rehabilitation and traditional immobilization following surgical Achilles tendon repair after acute rupture have been published. However, they have led to conflicting conclusions. The aims of this systematic review were to select high-quality meta-analyses from multiple discordant meta-analyses and to provide a postoperative rehabilitation strategy following surgical repair using currently available evidence. We performed a comprehensive search using the PubMed and Embase databases and the Cochrane Library...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28054434/in-vitro-phase-i-metabolism-of-selective-estrogen-receptor-modulators-in-horse-using-ultra-high-performance-liquid-chromatography-high-resolution-mass-spectrometry
#10
Karen Y Kwok, George H M Chan, Wai Him Kwok, Jenny K Y Wong, Terence S M Wan
Selective estrogen receptor modulators (SERMs) are chemicals that possess the anti-oestrogenic activities that are banned "in" and "out" of competition by the World Anti-Doping Agency (WADA) in human sports, and by the International Federation of Horseracing Authorities (IFHA) in horseracing. SERMs can be used as performance enhancing drugs to boost the level of androgens or to compensate for the adverse effects as a result of extensive use of androgenic anabolic steroids (AASs). SERMs have indeed been abused in human sports; hence, a similar threat can be envisaged in horseracing...
January 5, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28054146/revision-anterior-cruciate-ligament-reconstruction-with-ipsi-or-contralateral-hamstring-tendon-grafts
#11
Claudio Legnani, Giuseppe Peretti, Enrico Borgo, Stefania Zini, Alberto Ventura
OBJECTIVES: With the increasing number of primary anterior cruciate ligament (ACL) reconstructions, the need for revision ACL surgery has risen over the past few years. The purpose of the present study is to retrospectively compare the clinical outcome of ipsilateral versus contralateral hamstring tendon autografts for ACL revision surgery, specifically with regard to patient satisfaction, post-operative functional outcomes, and return to sports. METHODS: Between 2004 and 2011, 64 patients underwent ACL revision surgery...
January 4, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28052130/cervical-spine-injuries-a-whole-body-musculoskeletal-model-for-the-analysis-of-spinal-loading
#12
Dario Cazzola, Timothy P Holsgrove, Ezio Preatoni, Harinderjit S Gill, Grant Trewartha
Cervical spine trauma from sport or traffic collisions can have devastating consequences for individuals and a high societal cost. The precise mechanisms of such injuries are still unknown as investigation is hampered by the difficulty in experimentally replicating the conditions under which these injuries occur. We harness the benefits of computer simulation to report on the creation and validation of i) a generic musculoskeletal model (MASI) for the analyses of cervical spine loading in healthy subjects, and ii) a population-specific version of the model (Rugby Model), for investigating cervical spine injury mechanisms during rugby activities...
2017: PloS One
https://www.readbyqxmd.com/read/28051343/methodological-considerations-when-quantifying-high-intensity-efforts-in-team-sport-using-global-positioning-system-technology
#13
Matthew C Varley, Arne Jaspers, Werner F Helsen, James J Malone
Purpose Sprints and accelerations are popular performance indicators in applied sport. The methods used to define these efforts using athlete tracking technology could affect the number of efforts reported. The study aimed to determine the influence of different techniques and settings for detecting high-intensity efforts using Global Positioning System (GPS) data. Methods Velocity and acceleration data of a professional soccer match was recorded via 10-Hz GPS. Velocity data was filtered using either a median or exponential filter...
January 4, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28050921/influence-of-dietary-acid-load-on-exercise-performance
#14
Catherine Applegate, Mackenzie Mueller, Krystle E Zuniga
Diet composition can affect systemic pH and acid-base regulation, which may in turn influence exercise performance. An acidic environment in the muscle impairs performance and contributes to fatigue; therefore, current trends in sports nutrition place importance on maximizing the alkalinity of the body with ergogenic aids and dietary strategies. This review examines the evidence on the effects of dietary manipulations on acid load and exercise performance. Ten studies that investigated the effect of high versus low dietary acid loads on athletic performance generally identified that low dietary acid loads increased plasma pH, but did not consistently improve exercise performance at maximal or submaximal exercise intensities...
January 4, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28045961/noseband-use-in-equestrian-sports-an-international-study
#15
Orla Doherty, Vincent Casey, Paul McGreevy, Sean Arkins
Nosebands are used by riders to prevent the horse from opening its mouth, to increase control and, in some cases, to comply with the competition rules. While equestrian texts traditionally recommend that two adult human fingers should be able to fit under a fastened noseband, noseband tightness levels are not, in general, regulated in competition. Possible detrimental consequences for the horse, of excessively tight nosebands, include discomfort, pain or tissue damage. The current study investigated noseband usage in equestrian competition...
2017: PloS One
https://www.readbyqxmd.com/read/28039126/are-olympic-athletes-free-from-cardiovascular-diseases-systematic-investigation-in-2352-participants-from-athens-2004-to-sochi-2014
#16
Antonio Pelliccia, Paolo Emilio Adami, Filippo Quattrini, Maria Rosaria Squeo, Stefano Caselli, Luisa Verdile, Viviana Maestrini, Fernando Di Paolo, Cataldo Pisicchio, Roberto Ciardo, Antonio Spataro
CONTEXT: Olympic athletes represent model of success in our society, by enduring strenuous conditioning programmes and achieving astonishing performances. They also raise scientific and clinical interest, with regard to medical care and prevalence of cardiovascular (CV) abnormalities. OBJECTIVE: Our aim was to assess the prevalence and type of CV abnormalities in this selected athlete's cohort. DESIGN, SETTING AND PARTICIPANTS: 2352 Olympic athletes, mean age 25±6, 64% men, competing in 31 summer or 15 winter sports, were examined with history, physical examination, 12-lead and exercise ECG and echocardiography...
December 30, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28039074/caffeine-stimulates-voluntary-wheel-running-in-mice-without-increasing-aerobic-capacity
#17
Gerald C Claghorn, Zoe Thompson, Kristianna Wi, Lindsay Van, Theodore Garland
The "energy drink" Red Bull and the "sports drink" Gatorade are often marketed to athletes, with claims that they cause performance gains. However, both are high in sugars, and also consumed by non-athletes. Few studies have addressed the effects of these drinks or their biologically active components in rodent exercise models. We used three experiments to test effects on both voluntary exercise behavior and maximal aerobic capacity in lines of mice known to differ in "athletic" traits. Mice from four replicate High Runner (HR) lines have been selectively bred for voluntary running on wheels, and run approximately three times as many revolutions per day as do mice from four non-selected Control (C) lines...
December 28, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/28033318/a-point-mutation-in-a-lincrna-upstream-of-gdnf-is-associated-to-a-canine-insensitivity-to-pain-a-spontaneous-model-for-human-sensory-neuropathies
#18
Jocelyn Plassais, Laetitia Lagoutte, Solenne Correard, Manon Paradis, Eric Guaguère, Benoit Hédan, Alix Pommier, Nadine Botherel, Marie-Christine Cadiergues, Philippe Pilorge, David Silversides, Maud Bizot, Mark Samuels, Carme Arnan, Rory Johnson, Christophe Hitte, Gilles Salbert, Agnès Méreau, Pascale Quignon, Thomas Derrien, Catherine André
Human Hereditary Sensory Autonomic Neuropathies (HSANs) are characterized by insensitivity to pain, sometimes combined with self-mutilation. Strikingly, several sporting dog breeds are particularly affected by such neuropathies. Clinical signs appear in young puppies and consist of acral analgesia, with or without sudden intense licking, biting and severe self-mutilation of the feet, whereas proprioception, motor abilities and spinal reflexes remain intact. Through a Genome Wide Association Study (GWAS) with 24 affected and 30 unaffected sporting dogs using the Canine HD 170K SNP array (Illumina), we identified a 1...
December 2016: PLoS Genetics
https://www.readbyqxmd.com/read/28031765/physical-performance-during-water-polo-matches-the-effect-of-the-players-competitive-level
#19
Petros G Botonis, Argyris G Toubekis, Theodoros I Platanou
The purpose of the study was to compare playing intensity and performance changes within a water-polo match in players of different competitive levels. High-level (n = 7) and lower-level (n = 7) players performed a progressively increasing speed test of 5 x 200 m swimming and speed corresponding to lactate concentration of 4.0, 5.0 and 10.0 mmol•l-1 was calculated. Repeated sprint ability (8 x 20 m) was tested at pre-, the middle and post-match and a 400 m swimming test was completed at pre and post in five water-polo matches...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28030533/physical-and-physiological-profile-of-wrestler-athletes-short-review
#20
Helmi Chaabene, Yassine Negra, Raja Bouguezzi, Bessem Mkaouer, Emerson Franchini, Ursula Julio, Younés Hachana
Wrestling is one of the oldest combat sports, disputed since the ancient Greek Olympic Games. This combat sport discipline has caught the attention of scientists since 1943 which is the date that matches the appearance of the first scientific research dealing with wrestling. The current short review aimed to summarize and critically analyze the scientific literature related to wrestling's physical and physiological attributes and to provide practical recommendations for testing/training together with new perspective and areas of future scientific research...
December 24, 2016: Journal of Strength and Conditioning Research
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