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https://www.readbyqxmd.com/read/28102488/performance-and-side-effects-of-supplementation-with-n-acetylcysteine-a-systematic-review-and-meta-analysis
#1
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/28100160/determining-the-potential-benefits-of-yoga-in-chronic-stroke-care-a-systematic-review-and-meta-analysis
#2
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/28074345/the-beneficial-effects-of-physical-activity-is-it-down-to-your-genes-a-systematic-review-and-meta-analysis-of-twin-and-family-studies
#3
REVIEW
J R Zadro, D Shirley, T B Andrade, K J Scurrah, A Bauman, P H Ferreira
BACKGROUND: There is evidence for considerable heterogeneity in the responsiveness to regular physical activity (PA) which might reflect the influence of genetic factors. The aim of this systematic review was to assess whether the response to a PA intervention for measures of body composition and cardiorespiratory fitness is (i) correlated within twin pairs and/or families and (ii) more correlated in monozygotic twins (MZ) compared to dizygotic twins (DZ), which would be consistent with genetic effects...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28068167/vehicle-exposure-and-spinal-musculature-fatigue-in-military-warfighters-a-meta-analysis
#4
Roger O Kollock, Kenneth E Games, Alan E Wilson, JoEllen M Sefton
CONTEXT:  Spinal musculature fatigue from vehicle exposure may place warfighters at risk for spinal injuries and pain. Research on the relationship between vehicle exposure and spinal musculature fatigue is conflicting. A better understanding of the effect of military duty on musculoskeletal function is needed before sports medicine teams can develop injury-prevention programs. OBJECTIVE:  To determine if the literature supports a definite effect of vehicle exposure on spinal musculature fatigue...
November 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/28058696/size-exponents-for-scaling-maximal-oxygen-uptake-in-over-6500-humans-a-systematic-review-and-meta-analysis
#5
REVIEW
Lorenzo Lolli, Alan M Batterham, Kathryn L Weston, Greg Atkinson
BACKGROUND: Maximal oxygen uptake ([Formula: see text] 2max) is conventionally normalized to body size as a simple ratio or using an allometric exponent < 1. Nevertheless, the most appropriate body size variable to use for scaling and the value of the exponent are still enigmatic. Studies tend to be based on small samples and can, therefore, lack precision. OBJECTIVE: The objective of this systematic review was to provide a quantitative synthesis of reported static allometric exponents used for scaling [Formula: see text] 2max to whole body mass and fat-free mass...
January 6, 2017: Sports Medicine
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
#6
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/28054255/evaluation-of-resistance-training-to-improve-muscular-strength-and-body-composition-in-cancer-patients-undergoing-neoadjuvant-and-adjuvant-therapy-a-meta-analysis
#7
REVIEW
Camila S Padilha, Poliana Camila Marinello, Daniel A Galvão, Robert U Newton, Fernando H Borges, Fernando Frajacomo, Rafael Deminice
PURPOSE: Muscle atrophy and strength decline are two of the most prominent characteristics in cancer patients undergoing cancer therapy, leading to decreased functional ability and reduced quality of life. Therefore, the aim is to systematically review research evidence of the effects of resistance exercise (RE) on lower-limb muscular strength, lean body mass (LBM), and body fat (BF) in cancer patients undertaking neoadjuvant or adjuvant therapy. METHODS: This research was conducted using the following online database: Clinical Trial Register, Cochrane Trial Register, PubMed, SPORT Discus, and SciELO, from September 2014 until May 2015...
January 4, 2017: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/28025086/exercise-training-on-skill-related-physical-fitness-in-adolescents-with-intellectual-disability-a-systematic-review-and-meta-analysis
#8
REVIEW
Shiau-Chian Jeng, Chia-Wei Chang, Wen-Yu Liu, Yu-Jen Hou, Yang-Hua Lin
BACKGROUND: Skill-related fitness (SRF) is a component of physical fitness related to sports or occupational performance. Adolescents with intellectual disability (ID) can take advantage of SRF for enhancing work performance and enjoying participation with peers in leisure activities. However, few studies have examined the benefits of exercise on SRF in adolescents with ID. OBJECTIVE: This study synthesized the results from the reviewed studies and determined whether exercise training improves SRF in adolescents with ID...
December 19, 2016: Disability and Health Journal
https://www.readbyqxmd.com/read/28003239/meta-analytical-review-of-the-effects-of-football-heading
#9
REVIEW
Anthony P Kontos, Rock Braithwaite, Sara P D Chrisman, Jamie McAllister-Deitrick, Larissa Symington, Valerie L Reeves, Michael W Collins
AIM/OBJECTIVE: The objective of this study was to provide a meta-analysis examining the effects of football heading. DESIGN: Meta-analytical review on football heading effects on neurocognitive performance, cognition and symptom reports. DATA SOURCES: Combinations of the key terms were entered into the following electronic database search engines: Cochrane Libraries, PyscARTICLE, PyscINFO, PubMed, ProQuest, SPORTDiscus and Web of Science on 7 July 2016...
December 21, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27939265/global-participation-in-sport-and-leisure-time-physical-activities-a-systematic-review-and-meta-analysis
#10
REVIEW
Ryan M Hulteen, Jordan J Smith, Philip J Morgan, Lisa M Barnett, Pedro C Hallal, Kim Colyvas, David R Lubans
This review aimed to determine the most popular physical activities performed by children, adolescents, and adults globally. Statistic bureau websites and article databases Scopus, ProQuest, SPORTDiscus, and Science Direct were searched between November 17th, 2014 and April 31st, 2015. Eligible studies were published in the last 10years with participation rates for specific physical activities among individuals five years or older. Data extraction for included articles (n=64) was assessed independently and agreed upon by two authors...
December 6, 2016: Preventive Medicine
https://www.readbyqxmd.com/read/27929355/global-physical-activity-levels-among-people-living-with-hiv-a-systematic-review-and-meta-analysis
#11
Davy Vancampfort, James Mugisha, Marc De Hert, Michel Probst, Joseph Firth, Paul Gorczynski, Brendon Stubbs
PURPOSE: It is unclear how much physical activity people living with HIV (PLWH) engage in. We conducted a meta-analysis to investigate physical activity levels and its predictors in PLWH. METHODS: PubMed, PsycARTICLES, and CINAHL Plus were searched by two independent reviewers from inception till 1 April 2016 using the keywords: "HIV" OR "AIDS" AND "physical activity" OR "exercise" OR "sports". A random effects meta-analysis was conducted. RESULTS: Across 24 studies including 34 physical activity levels there were 3780 (2471♂) PLWH (mean age range: 37-58 years)...
December 8, 2016: Disability and Rehabilitation
https://www.readbyqxmd.com/read/27889869/left-ventricular-speckle-tracking-derived-cardiac-strain-and-cardiac-twist-mechanics-in-athletes-a-systematic-review-and-meta-analysis-of-controlled-studies
#12
REVIEW
Alexander Beaumont, Fergal Grace, Joanna Richards, John Hough, David Oxborough, Nicholas Sculthorpe
BACKGROUND: The athlete's heart is associated with physiological remodeling as a consequence of repetitive cardiac loading. The effect of exercise training on left ventricular (LV) cardiac strain and twist mechanics are equivocal, and no meta-analysis has been conducted to date. OBJECTIVE: The objective of this systematic review and meta-analysis was to review the literature pertaining to the effect of different forms of athletic training on cardiac strain and twist mechanics and determine the influence of traditional and contemporary sporting classifications on cardiac strain and twist mechanics...
November 26, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27857697/the-development-of-a-new-sport-specific-classification-of-coping-and-a-meta-analysis-of-the-relationship-between-different-coping-strategies-and-moderators-on-sporting-outcomes
#13
Adam R Nicholls, Natalie J Taylor, Sean Carroll, John L Perry
There is an ever growing coping and sports performance literature, with researchers using many different methods to assess performance and different classifications of coping. As such, it makes it difficult to compare studies and therefore identify how coping is related to performance. Furthermore, there are no quantitative syntheses of the results from these studies. A quantitative synthesis would facilitate a more comprehensive understanding of how coping is associated with athletic performance. In order to accurately compare studies, our first aim was to develop a new coping classification that would make this possible...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27845683/pain-activities-of-daily-living-and-sport-function-at-different-time-points-after-hip-arthroscopy-in-patients-with-femoroacetabular-impingement-a-systematic-review-with-meta-analysis
#14
REVIEW
Signe Kierkegaard, Martin Langeskov-Christensen, Bent Lund, Florian D Naal, Inger Mechlenburg, Ulrik Dalgas, Nicola C Casartelli
AIM: To investigate pain, activities of daily living (ADL) function, sport function, quality of life and satisfaction at different time points after hip arthroscopy in patients with femoroacetabular impingement (FAI). DESIGN: Systematic review with meta-analysis. Weighted mean differences between preoperative and postoperative outcomes were calculated and used for meta-analysis. DATA SOURCES: EMBASE, MEDLINE, SportsDiscus, CINAHL, Cochrane Library, and PEDro...
November 14, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27842463/do-cognitive-training-strategies-improve-motor-and-positive-psychological-skills-development-in-soccer-players-insights-from-a-systematic-review
#15
Maamer Slimani, Nicola Luigi Bragazzi, David Tod, Alexandre Dellal, Olivier Hue, Foued Cheour, Lee Taylor, Karim Chamari
Soccer players are required to have well-developed physical, technical and cognitive abilities. The present systematic review, adhering to Preferred Reporting Items for Systematic reviews and Meta-Analysis guidelines, examined the effects of cognitive training strategies on motor and positive psychological skills development in soccer performance and identified the potential moderators of the "cognitive training-soccer performance" relationship. Thirteen databases were systematically searched using keywords related to psychological or cognitive training in soccer players...
December 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27835043/risk-factors-for-medial-tibial-stress-syndrome-in-active-individuals-an-evidence-based-review
#16
Zachary K Winkelmann, Dustin Anderson, Kenneth E Games, Lindsey E Eberman
: Reference/Citation: Hamstra-Wright KL, Bliven KC, Bay C. Risk factors for medial tibial stress syndrome in physically active individuals such as runners and military personnel: a systematic review and meta-analysis. Br J Sports Med. 2015;49(6):362-369. CLINICAL QUESTION: What factors put physically active individuals at risk to develop medial tibial stress syndrome (MTSS)? DATA SOURCES: The authors performed a literature search of CINAHL, the Cochrane Central Register of Controlled Trials, EMBASE, and MEDLINE from each database's inception to July 2013...
December 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27813685/physical-activity-and-intermittent-postconcussion-symptoms-after-a-period-of-symptom-limited-physical-and-cognitive-rest
#17
Quinton Sawyer, Brian Vesci, Tamara C Valovich McLeod
: Reference: Schneider KJ, Iverson GL, Emery CA, McCrory P, Herring SA, Meeuwisse WH. The effects of rest and treatment following sport-related concussion: a systematic review of the literature. Br J Sports Med. 2013;47(5):304-307. CLINICAL QUESTION: After concussion and a period of symptom-limited physical and cognitive rest, do athletes who experience intermittent symptoms return to asymptomatic condition more quickly with physical activity than with prolonged physical rest? DATA SOURCES: One investigator performed an individual search for each research question using the following databases: CINAHL, Cochrane Controlled Trials Registers, EMBASE, HealthSTAR, ProQuest, PsychInfo, PubMed, SPORTDiscus, and Web of Science...
September 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27793062/variation-in-responses-to-sprint-training-in-male-youth-athletes-a-meta-analysis
#18
J Moran, G Sandercock, M C Rumpf, D A Parry
The trainability of youths and the existence of periods of accelerated adaptation to training have become key subjects of debate in exercise science. The purpose of this meta-analysis was to characterise youth athletes' adaptability to sprint training across PRE-, MID-, and POST-peak height velocity (PHV) groups. Effect sizes were calculated as a measure of straight-line sprinting performance with studies qualifying based on the following criteria: (a) healthy male athletes who were engaged in organised sports; (b) groups of participants with a mean age between 10 and 18 years; (c) sprint training intervention duration between 4 and 16 weeks...
January 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27769608/variability-in-outcome-reporting-for-operatively-managed-anterior-glenohumeral-instability-a-systematic-review
#19
Jayd Lukenchuk, Laura A Sims, Jason J Shin
PURPOSE: The purpose of this study was to quantify the degree of variability in outcomes assessed after surgery for anterior shoulder instability in recent high-impact literature. METHODS: Using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, an extensive review of the literature during a 5-year period from January 2011 through December 2015 was performed across 6 orthopaedic journals with high impact factors to identify all studies investigating outcomes after anterior shoulder instability...
October 18, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27757591/acute-effects-of-caffeine-containing-energy-drinks-on-physical-performance-a-systematic-review-and-meta-analysis
#20
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
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