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sport meta-analysis

Diego B Souza, Juan Del Coso, Juliano Casonatto, Marcos D Polito
PURPOSE: Caffeine-containing energy drinks (EDs) are currently used as ergogenic aids to improve physical performance in a wide variety of sport disciplines. However, the outcomes of previous investigations on this topic are inconclusive due to methodological differences, especially, in the dosage of the active ingredients and the test used to assess performance. METHODS: We performed a systematic review and meta-analysis of published studies to evaluate the effects of acute ED intake on physical performance...
October 18, 2016: European Journal of Nutrition
Wesam Saleh A Al Attar, Najeebullah Soomro, Peter J Sinclair, Evangelos Pappas, Ross H Sanders
BACKGROUND: Hamstring injuries are among the most common non-contact injuries in sports. The Nordic hamstring (NH) exercise has been shown to decrease risk by increasing eccentric hamstring strength. OBJECTIVE: The purpose of this systematic review and meta-analysis was to investigate the effectiveness of the injury prevention programs that included the NH exercise on reducing hamstring injury rates while factoring in athlete workload. METHODS: Two researchers independently searched for eligible studies using the following databases: the Cochrane Central Register of Controlled Trials via OvidSP, AMED (Allied and Complementary Medicine) via OvidSP, EMBASE, PubMed, MEDLINE, SPORTDiscus, Web of Science, CINAHL and AusSportMed, from inception to December 2015...
October 17, 2016: Sports Medicine
Dagang Zhang, Long Chen, Guanglin Wang
BACKGROUND: This meta-analysis aims to evaluate the efficacy and safety of hip arthroscopy versus open surgical dislocation for treating femoroacetabular impingement (FAI) through published clinical trials. METHODS: We conducted a comprehensive literature search using PUBMED, EMBASE, and the Cochrane Central Register of Controlled Trials databases for relevant studies on hip arthroscopy and open surgical dislocation as treatment options for FAI. RESULTS: Compared with open surgical dislocation, hip arthroscopy resulted in significantly higher Nonarthritic Hip Scores (NAHS) at 3- and 12-month follow-ups, a significant improvement in NAHS from preoperation to 3 months postoperation, and a significantly lower reoperation rate...
October 2016: Medicine (Baltimore)
Shawn N Geniole, Brian M Bird, Erika L Ruddick, Justin M Carré
A contribution to a special issue on Hormones and Human Competition. Since Archer's (2006) influential meta-analysis, there has been a major increase in the number of studies investigating the effect of competition outcome on testosterone reactivity patterns in humans. Despite this increased research output, there remains debate as to whether competition outcome modulates testosterone concentrations. The present paper examines this question using a meta-analytic approach including papers published over the last 35years...
October 6, 2016: Hormones and Behavior
Ana Oliveira, Ângela Monteiro, Cristina Jácome, Vera Afreixo, Alda Marques
Group sports interventions have been developed to improve health-related physical fitness of overweight/obese youth. However, its benefits are not systematically documented. This study synthesizes the evidence about the effects of group sports on health-related physical fitness of overweight/obese youth. Pubmed, Web of Knowledge, Scopus, Medline, CINAHL, SportDiscus, and Academic Search Complete were searched in February 2016. Studies assessing the effects of group sports on body composition, cardiorespiratory endurance, muscle strength, flexibility, and neuromotor fitness of overweight/obese youth (aged <18 years) were included...
October 7, 2016: Scandinavian Journal of Medicine & Science in Sports
Marco Antonio Soriano, Timothy J Suchomel, Pedro J Marín
BACKGROUND: External mechanical power is considered to be one of the most important characteristics with regard to sport performance. OBJECTIVE: The purpose of this meta-analysis was to examine the effect of load on kinetic variables such as mean and peak power during bench press and bench press throw, thus integrating the findings of various studies to provide the strength and conditioning professional with more reliable evidence upon which to base their program design...
October 3, 2016: Sports Medicine
Nicholas L Holt, Kacey C Neely, Linda G Slater, Martin Camiré, Jean Côté, Jessica Fraser-Thomas, Dany MacDonald, Leisha Strachan, Katherine A Tamminen
The overall purpose of this study was to create a model of positive youth development (PYD) through sport grounded in the extant qualitative literature. More specifically, the first objective was to review and evaluate qualitative studies of PYD in sport. The second objective was to analyze and synthesize findings from these studies. Following record identification and screening, 63 articles were retained for analysis. Meta-method analysis revealed strengths of studies were the use of multiple data collection and validity techniques, which produced high-quality data...
January 1, 2017: International Review of Sport and Exercise Psychology
Gui Tran, Toby O Smith, Adam Grice, Sarah R Kingsbury, Paul McCrory, Philip G Conaghan
BACKGROUND: To assess the relationship between sport and osteoarthritis (OA), and specifically to determine whether previous participation, in terms of level (elite or non-elite), type of sport, intensity or previous injury, was associated with OA. METHODS: This systematic review was developed using PRISMA guidelines. Databases were searched (to May 2016). Narrative review and meta-analysis (with risk ratio (RR) and 95% CIs) approaches were undertaken where appropriate...
September 28, 2016: British Journal of Sports Medicine
Rehana A Salam, Ahmed Arshad, Jai K Das, Marium Naveed Khan, Wajeeha Mahmood, Stephen B Freedman, Zulfiqar A Bhutta
Globally, every day, ∼2,300 children and adolescents succumb to unintentional injuries sustained from motor vehicle collisions, drowning, poisoning, falls, burns, and violence. The rate of deaths due to motor vehicle injuries in adolescents is 10.2 per 100,000 adolescents. We systematically reviewed published evidence to identify interventions to prevent unintentional injuries among adolescents aged 11-19 years. We defined unintentional injuries as a subset of injuries for which there was no evidence of predetermined intent, and the definition included motor vehicle injuries, suffocation, drowning, poisoning, burns, falls, and sports and recreation...
October 2016: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
Amanda Hall, Bethan Copsey, Helen Richmond, Jacqueline Thompson, Manuela Ferreira, Jane Latimer, Chris G Maher
BACKGROUND: Tai chi is recommended for musculoskeletal conditions, however, the evidence for its clinical effectiveness is uncertain. PURPOSE: To determine whether tai chi is beneficial for clinical outcomes in people with musculoskeletal pain. DATA SOURCES: Seven databases EMBASE, PEDro, AMED, MEDLINE, CINAHL, Sport Discus, and the Cochrane Central Register of Controlled Trials. STUDY SELECTION: Randomized controlled trials of tai chi for people with a chronic musculoskeletal condition were included...
September 15, 2016: Physical Therapy
Jean-Charles Lebeau, Sicong Liu, Camilo Sáenz-Moncaleano, Susana Sanduvete-Chaves, Salvador Chacón-Moscoso, Betsy Jane Becker, Gershon Tenenbaum
Research linking the "quiet eye" (QE) period to subsequent performance has not been systematically synthesized. In this paper we review the literature on the link between the two through non-intervention (Synthesis 1) and intervention (Synthesis 2) studies. In the first synthesis, 27 studies with 38 effect sizes resulted in a large mean effect (d̄ = 1.04) reflecting differences between experts' and novices' QE periods, and a moderate effect size (d̄ = .58) comparing QE periods for successful and unsuccessful performances within individuals...
September 16, 2016: Journal of Sport & Exercise Psychology
Seán McAuliffe, Karen McCreesh, Fiona Culloty, Helen Purtill, Kieran O'Sullivan
BACKGROUND: Ultrasound (US) imaging is commonly used to visualise tendon structure. It is not clear whether the presence of structural abnormalities in asymptomatic tendons predicts the development of future tendon symptoms in the Achilles or patellar tendon. AIM: To perform a systematic review and meta-analysis investigating the ability of US imaging to predict future symptoms of patellar or Achilles tendinopathy. METHODS: Prospective studies that performed US imaging of Achilles OR patellar tendon structure among asymptomatic patients at baseline and a clinical measure of pain and/or function at follow-up were included...
September 15, 2016: British Journal of Sports Medicine
Nathan L Grimm, John C Jacobs, Jaewhan Kim, Annunziato Amendola, Kevin G Shea
BACKGROUND: Soccer has one of the highest rates of ankle injury in sports for both males and females. Several injury prevention programs have been developed to address this concern. The purposes of this study were to conduct a meta-analysis of ankle injury prevention programs for soccer players, assess the heterogeneity among the studies, and evaluate the reported effectiveness of the prevention programs. METHODS: A systematic search of the literature was conducted in PubMed (MEDLINE), Embase, CINAHL (Cumulative Index to Nursing and Allied Health), and the Cochrane Central Register of Controlled Trials (CENTRAL) database...
September 7, 2016: Journal of Bone and Joint Surgery. American Volume
Gerald S Zavorsky, James M Smoliga
No abstract text is available yet for this article.
September 6, 2016: JAMA Neurology
Pavlos Panteliadis, Navraj S Nagra, Kimberley L Edwards, Eyal Behrbalk, Bronek Boszczyk
STUDY DESIGN: Narrative review. OBJECTIVE: The study aims to critically review the outcomes associated with the surgical repair or conservative management of spondylolysis in athletes. METHODS: The English literature listed in MEDLINE/PubMed was reviewed to identify related articles using the term "spondylolysis AND athlete." The criteria for studies to be included were management of spondylolysis in athletes, English text, and no year, follow-up, or study design restrictions...
September 2016: Global Spine Journal
Aaron J Krych, Ayoosh Pareek, Alexander H King, Nick R Johnson, Michael J Stuart, Riley J Williams
PURPOSE: Optimal surgical treatment of chondral defects in an athletic population remains highly controversial and has yet to be determined. The purpose of this review was to (1) report data on return to sport and (2) compare activity and functional outcome measures following various cartilage restoration techniques. METHODS: A comprehensive review was performed for studies with return-to-sport outcomes after microfracture (MFX), osteochondral autograft transfer (OAT), osteochondral allograft transplantation (OCA), and autologous chondrocyte implantation (ACI)...
August 18, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Kate A Timmins, Richard D Leech, Mark E Batt, Kimberley L Edwards
BACKGROUND: Osteoarthritis (OA) is a chronic condition characterized by pain, impaired function, and reduced quality of life. A number of risk factors for knee OA have been identified, such as obesity, occupation, and injury. The association between knee OA and physical activity or particular sports such as running is less clear. Previous reviews, and the evidence that informs them, present contradictory or inconclusive findings. PURPOSE: This systematic review aimed to determine the association between running and the development of knee OA...
August 12, 2016: American Journal of Sports Medicine
Alejandro Santos-Lozano, Helios Pareja-Galeano, Fabian Sanchis-Gomar, Miguel Quindós-Rubial, Carmen Fiuza-Luces, Carlos Cristi-Montero, Enzo Emanuele, Nuria Garatachea, Alejandro Lucia
OBJECTIVE: To explore whether being physically active can decrease Alzheimer disease (AD) risk. PARTICIPANTS AND METHODS: We conducted a meta-analysis of prospective observational cohort studies reporting the association between physical activity (PA) and incident AD. Relevant articles were identified by title and abstract in the electronic databases PubMed, ScienceDirect, and Scopus using the keywords Alzheimer, Alzheimer disease, Alzheimer's, Alzheimer's disease, physical activity, sport, exercise, sedentary, fitness, and combinations thereof for articles published in any language up to February 15, 2016...
August 2016: Mayo Clinic Proceedings
Robert W Westermann, Kyle J Hancock, Joseph A Buckwalter, Benjamin Kopp, Natalie Glass, Brian R Wolf
BACKGROUND: Capitellar osteochondritis dissecans (OCD) is commonly managed surgically in symptomatic adolesent throwers and gymnasts. Little is known about the impact that surgical technique has on return to sport. PURPOSE: To evaluate the clinical outcomes and return-to-sport rates after operative management of OCD lesions in adolescent athletes. STUDY DESIGN: Systematic review; Level of evidence, 4. METHODS: The PubMed, CINAHL, EMBASE, SPORTDiscus (EBSCO), and Cochrane Central Register of Controlled Trials databases were queried for studies evaluating outcomes and return to sport after surgical management of OCD of the capitellum...
June 2016: Orthopaedic Journal of Sports Medicine
Ulf Ekelund, Jostein Steene-Johannessen, Wendy J Brown, Morten Wang Fagerland, Neville Owen, Kenneth E Powell, Adrian Bauman, I-Min Lee
BACKGROUND: High amounts of sedentary behaviour have been associated with increased risks of several chronic conditions and mortality. However, it is unclear whether physical activity attenuates or even eliminates the detrimental effects of prolonged sitting. We examined the associations of sedentary behaviour and physical activity with all-cause mortality. METHODS: We did a systematic review, searching six databases (PubMed, PsycINFO, Embase, Web of Science, Sport Discus, and Scopus) from database inception until October, 2015, for prospective cohort studies that had individual level exposure and outcome data, provided data on both daily sitting or TV-viewing time and physical activity, and reported effect estimates for all-cause mortality, cardiovascular disease mortality, or breast, colon, and colorectal cancer mortality...
September 24, 2016: Lancet
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