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https://www.readbyqxmd.com/read/29683920/the-problem-with-magnitude-based-inference
#1
Kristin L Sainani
PURPOSE: A statistical method called "Magnitude-Based Inference" (MBI) has gained a following in the sports science literature, despite concerns voiced by statisticians. Its proponents have claimed that MBI exhibits superior Type I and Type II error rates compared with standard null hypothesis testing for most cases. I have performed a re-analysis to evaluate this claim. METHODS: Using simulation code provided by MBI's proponents, I estimated Type I and Type II error rates for clinical and non-clinical MBI for a range of effect sizes, sample sizes, and smallest important effects...
April 21, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29683770/athletes-perceptions-of-coaching-competency-and-team-conflict-in-sport-teams-a-multilevel-analysis
#2
I González-Ponce, F M Leo, R Jiménez, D Sánchez-Oliva, H Sarmento, A Figueiredo, T García-Calvo
The purpose of this study was to examine the relationship between coaching competency and team conflict, at individual and team levels, over the season. The participants were professional female and male soccer players, who participated in the First and Second Division. A longitudinal study was performed. At Time 1, the sample of participants consisted of 581 soccer players aged between 15 and 39 years. At Time 2, 549 players were recruited from the original sample aged between 15 and 37 years. Finally, at Time 3, the sample comprised 576 players aged between 15 and 37 years...
April 23, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29679839/xenon-detection-in-human-blood-analytical-validation-by-accuracy-profile-and-identification-of-critical-storage-parameters
#3
Cécile Frampas, Julia Ney, Mark Coburn, Marc Augsburger, Vincent Varlet
Xenon is a rare, mostly inert, noble gas that has applications in a wide range of fields, including medicine. Xenon acts on the human body as a useful organ-protective and anesthetic agent and has also been previously studied for potential applications in fields such as optics, aerospace and medical imaging. Recently, it was discovered that xenon can boost erythropoietin production, and it has been used as a performance-enhancing agent in international sports competitions such as the Sochi Olympic Games. Therefore, screening methods to detect the misuse of xenon by analysis of biological samples and to monitor anesthesia kinetics and efficiency are being investigated...
April 13, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29678807/digital-inequalities-in-the-use-of-self-tracking-diet-and-fitness-apps-interview-study-on-the-influence-of-social-economic-and-cultural-factors
#4
Faustine Régnier, Louis Chauvel
BACKGROUND: Digital devices are driving economic and social transformations, but assessing the uses, perceptions, and impact of these new technologies on diet and physical activity remains a major societal challenge. OBJECTIVE: We aimed to determine under which social, economic, and cultural conditions individuals in France were more likely to be actively invested in the use of self-tracking diet and fitness apps for better health behaviors. METHODS: Existing users of 3 diet and fitness self-tracking apps (Weight Watchers, MyFitnessPal, and sport apps) were recruited from 3 regions of France...
April 20, 2018: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29677565/comparison-of-three-modes-of-aerobic-exercise-combined-with-resistance-training-on-the-pain-and-function-of-patients-with-knee-osteoarthritis-a-randomized-controlled-trial
#5
Sanaz Kabiri, Farzin Halabchi, Hooman Angoorani, Saeed Yekaninejad
OBJECTIVES: To investigate the effects of three modes of aerobic exercise (lower limbs with and without weight bearing and upper limb) for knee osteoarthritis. DESIGN: Randomized controlled trial. SETTING: Sports medicine clinic. PARTICIPANTS: Seventy-eight patients with knee osteoarthritis were divided into 3 groups of resistance training combined with one of three programs of treadmill, cycle ergometer, or arm ergometer aerobic training...
April 7, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29675749/evaluation-of-severe-and-fatal-injuries-in-extreme-and-contact-sports-an-international-multicenter-analysis
#6
Christian D Weber, Klemens Horst, Anthony R Nguyen, Rolf Lefering, Hans-Christoph Pape, Frank Hildebrand
PURPOSE: The participation in extreme and contact sports has grown internationally, despite the significant risk for major and multiple injuries. We conducted this multicenter study to evaluate sport-specific injury patterns and mechanisms, to characterize individuals at risk and to identify possible approaches for prevention. METHODS: We compared demographic data, severity and patterns of injuries; and the pre- and in-hospital management from an international population-based prospective trauma database (TraumaRegister DGU®)...
April 19, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29675506/large-osteochondral-allografts-of-the-knee-surgical-technique-and-indications
#7
REVIEW
Gabriele Pisanu, Umberto Cottino, Federica Rosso, Davide Blonna, Antonio Giulio Marmotti, Corrado Bertolo, Roberto Rossi, Davide E Bonasia
Large osteochondral allograft (OCA) transplant has become a valid alternative to restore articular surface in challenging articular lesions in young and active patients, either in primary or in revision procedures. Several studies support the effectiveness and safety of OCA, but costs and graft availability limit their use. The indications are the treatment of symptomatic full-thickness cartilage lesions greater than 3 cm 2 , deep lesions with subchondral damage, or revision procedures when a previous treatment has failed...
March 2018: Joints
https://www.readbyqxmd.com/read/29675503/factors-affecting-subjective-and-objective-outcomes-and-return-to-play-in-anterior-cruciate-ligament-reconstruction-a-retrospective-cohort-study
#8
Federica Rosso, Davide E Bonasia, Umberto Cottino, Simone Cambursano, Federico Dettoni, Roberto Rossi
Purpose  To analyze the prognostic factors influencing subjective and objective outcomes and return to play (RTP) after anterior cruciate ligament reconstruction (ACL-R). Methods  Primary ACL-Rs using a transtibial technique performed between 2008 and 2012 were included. Data regarding patients, surgery, sports, and rehabilitation, including an on-field rehabilitation (OFR) and duration of the rehabilitation program, were collected. The International Knee Documentation Committee (IKDC) subjective and objective evaluation forms, and the Knee Injury and Osteoarthritis Outcome Score and Lysholm questionnaires were used for the assessment of subjective and objective outcomes...
March 2018: Joints
https://www.readbyqxmd.com/read/29674008/applying-systems-ergonomics-methods-in-sport-a-systematic-review
#9
Adam Hulme, Jason Thompson, Katherine L Plant, Gemma J M Read, Scott Mclean, Amanda Clacy, Paul M Salmon
INTRODUCTION: As sports systems become increasingly more complex, competitive, and technology-centric, there is a greater need for systems ergonomics methods to consider the performance, health, and safety of athletes in context with the wider settings in which they operate. Therefore, the purpose of this systematic review was to identify and critically evaluate studies which have applied a systems ergonomics research approach in the context of sports performance and injury management...
April 16, 2018: Applied Ergonomics
https://www.readbyqxmd.com/read/29673243/the-effect-of-additional-carbohydrate-supplements-for-7-days-after-prolonged-interval-exercise-on-exercise-performance-and-energy-metabolism-during-submaximal-exercise-in-team-sports-athletes
#10
Hun-Young Park, Jisu Kim, Miyoung Park, Nana Chung, Kiwon Lim
PURPOSE: The purpose of our study was to determine the effectiveness of carbohydrate loading by additional carbohydrate supplements for 7 days after prolonged interval exercise on exercise performance and energy metabolism during submaximal exercise in team-sports athletes. METHODS: Twenty male team-sports athletes (14 soccer and 6 rugby players) volunteered to participate in the study and were equally divided into the experimental group (EXP, n=10) performing additional carbohydrate supplementation for 7 days after prolonged interval exercise until blood glucose level reaches 50 mg/dL or less and the control group (CON, n=10)...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29672683/daily-internet-time-towards-an-evidence-based-recommendation
#11
André Berchtold, Christina Akre, Yara Barrense-Dias, Grégoire Zimmermann, Joan-Carles Surís
Background: Since 2001, a recommendation of no more than 2 h per day of screen time for children 2 years of age or older was adopted in many countries. However, this recommendation was rarely examined empirically. The goal of the present study was to question this recommendation in today's connected world. Methods: We used data from the ado@internet.ch survey (spring 2012), a representative sample of 8th graders in the Canton of Vaud, Switzerland (n = 2942, 50.6% female)...
April 17, 2018: European Journal of Public Health
https://www.readbyqxmd.com/read/29672225/probiotic-supplementation-in-trained-trotter-horses-effect-on-blood-clinical-pathology-data-and-urine-metabolomic-assessed-in-field
#12
Luca Laghi, Chenglin Zhu, Giuseppe Campagna, Giacomo Rossi, Marilena Bazzano, Fulvio Laus
The attention of sports community towards probiotic supplementation as a way to promote exercise and training performance, together with good health, has increased in recent years. This has applied also to horses, with promising results. Here, for the first time, we tested a probiotic mix of several strains of alive bacteria typically employed for humans to improve the training performance of Standardbred horses in athletic activity. To evaluate its effects on the horse performance, we measured lactate concentration in blood, a translational outcome largely employed for the purpose, combined with the study of hematological and biochemical parameters, together with urine from a metabolomics perspective...
April 19, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29671010/-biomechanical-screening-for-injury-prevention-the-importance-of-3d-motion-analysis-in-high-performance-sports
#13
REVIEW
H Dewitz, B Yildirim, P Klein
Standardized clinical diagnostic procedures cannot assess the functionality of the anatomical structures in sport-specific movement. Biomechanical screening is able to detect deficits but is not sufficiently and objectively precise with the current clinical examination tools including conventional imaging techniques. The fields of use of functional testing methods are versatile and range from injury prevention analysis, screening during rehabilitation phases up to the return-to-play decision. Using simple musculoskeletal function analysis it is difficult to assess the risk of injuries...
April 18, 2018: Der Unfallchirurg
https://www.readbyqxmd.com/read/29670190/founder-specific-inbreeding-depression-affects-racing-performance-in-thoroughbred-horses
#14
Evelyn T Todd, Simon Y W Ho, Peter C Thomson, Rachel A Ang, Brandon D Velie, Natasha A Hamilton
The Thoroughbred horse has played an important role in both sporting and economic aspects of society since the establishment of the breed in the 1700s. The extensive pedigree and phenotypic information available for the Thoroughbred horse population provides a unique opportunity to examine the effects of 300 years of selective breeding on genetic load. By analysing the relationship between inbreeding and racing performance of 135,572 individuals, we found that selective breeding has not efficiently alleviated the Australian Thoroughbred population of its genetic load...
April 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29668813/factors-influencing-the-impact-of-oral-health-on-the-daily-activities-of-adolescents-adults-and-older-adults
#15
Jaqueline Vilela Bulgareli, Eduardo Tanajura de Faria, Karine Laura Cortellazzi, Luciane Miranda Guerra, Marcelo de Castro Meneghim, Glaucia Maria Bovi Ambrosano, Antonio Carlos Frias, Antonio Carlos Pereira
OBJECTIVE: Analyze if clinical, sociodemographic and access to dental services variables influence the impact of oral health on the daily activities of adolescents, adults and older adults. METHODS: A cross-sectional study with secondary data from the State Oral Health Survey (SB São Paulo 2015) conducted in 163 cities of São Paulo. A total of 17,560 individuals from three age groups: 15-19-year-old (n = 5,558), 35-44-year-old (n = 6,051), and older people of 65 years or more (n = 5,951) participated in the survey...
2018: Revista de Saúde Pública
https://www.readbyqxmd.com/read/29667867/excelling-at-youth-level-in-competitive-track-and-field-athletics-is-not-a-prerequisite-for-later-success
#16
Philip E Kearney, Philip R Hayes
Enhancing our understanding of athlete development would be valuable for coaches, parents and administrators to set realistic performance expectations and to advance youth sport policy. To this end, a database of track and field performances was examined. Records of 134,313 performances by athletes aged between 12 and 35 years in sprinting, throwing, jumping and middle distance events were analysed. Results revealed that a minority (Male, 9%; Female, 13%) of top 20 ranked senior athletes were also ranked in the top 20 at Under 13 (U13)...
April 18, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29667530/effects-of-developmental-age-on-symptom-reporting-and-neurocognitive-performance-in-youth-after-sports-related-concussion-compared-to-control-athletes
#17
Donna L Murdaugh, Kim E Ono, Sarah O Morris, Thomas G Burns
There is increased necessity to focus research on school-aged athletes with sports-related concussion (SRC). This study assessed differences in symptom reporting and neurocognitive performance in youth athletes who sustained a sports-related concussion. A total of 1345 concussed and 3529 nonconcussed athletes (ages 8-21) completed the Immediate Post-concussive Assessment and Cognitive Testing (ImPACT). Analyses of covariance were conducted in order to assess differences in neurocognitive performance and symptom reporting between the sports-related concussion and control groups across age ranges...
January 1, 2018: Journal of Child Neurology
https://www.readbyqxmd.com/read/29667429/quadriceps-function-knee-pain-and-self-reported-outcomes-in-patients-with-anterior-cruciate-ligament-reconstruction
#18
Adam S Lepley, Brian Pietrosimone, Marc L Cormier
CONTEXT:   Interactions among muscle strength, pain, and self-reported outcomes in patients with anterior cruciate ligament reconstruction (ACLR) are not well understood. Clarifying these interactions is of clinical importance because improving physical and psychological function is thought to optimize outcomes after ACLR. OBJECTIVE:   To examine the relationships among neuromuscular quadriceps function, pain, self-reported knee function, readiness to return to activity, and emotional response to injury both before and after ACLR...
April 18, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29666559/assessing-performance-in-pre-season-wrestling-athletes-using-biomarkers
#19
Ionas Papassotiriou, Artemissia-Phoebe Nifli
Introduction: Although regular training introduces the desired changes in athletes' metabolism towards optimal final performance, literature is rarely focusing on the metabolic responses off-competition. Therefore, the aim of this study was to evaluate biochemical indices during typical preseason training in wrestling athletes. Materials and methods: Twenty male freestyle and Greco-roman wrestlers (14 to 31 years) followed a typical session of the preparatory phase...
June 15, 2018: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/29665761/expert-rater-agreement-and-inter-intrarater-reliability-for-the-furtado-gallagher-computerized-observational-movement-pattern-assessment-system
#20
Ovande Furtado, Jere D Gallagher
Fundamental movement skills (FMS) play a crucial role in a child's motor skill development, as their mastery is related to the acquisition and mastery of specialized sport skills and to a child's general health through the prevention of weight gain and increased level of physical activity. Thus, the accurate and reliable measurement of FMS is of related importance. This article presents the results of two studies intended to assess expert-rater agreement and inter-/intrarater scoring reliability in the administration of a new observational FMS instrument, the Furtado-Gallagher Computerized Observational Movement Pattern Assessment System (FG-COMPASS)...
January 1, 2018: Perceptual and Motor Skills
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