scholarly journals The development of respect in young athletes: A systematic review and meta-analysis

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0252643
Author(s):  
Manuel Tomás Abad Robles ◽  
Benjamín Navarro Domínguez ◽  
José Antonio Cerrada Nogales ◽  
Francisco Javier Giménez Fuentes-Guerra
Keyword(s):  
Systematic Review ◽  
Effect Size ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Self Control ◽  
Total Effect ◽  
Control Effort ◽  
Social Conventions ◽  
Quasi Experimental ◽  
Meta Analyses

Background The practice of sports can lead to the development of values such as respect, self-control, effort, autonomy and leadership. However, sport can only foster educational habits and values if it is properly timed and specifically focused towards that end. The aim of this study was to carry out a systematic review and meta-analysis of the effect of interventions on the development and promotion of respect in the practice of sport among young people. Methods A systematic search was conducted, according to the guidelines of the PRISMA declaration, in the Web of Science (WOS), PubMed (Medline), Scopus, Google Scholar and SportDiscus databases. A total of 6 articles were considered to meet the inclusion criteria for the promotion of respect. Criteria for inclusion included: the full text needed to be available; it should be written in one of the selected languages: English, Spanish and Portuguese; it should be an intervention, an experimental or quasi-experimental study or a randomized controlled trial. Each manuscript was independently reviewed by three authors of this work. Results The results of the meta-analyses showed that the Siedentop sports education model, and Hellison’s personal and social responsibility model (TPRS), had significant improvements regarding respect for opponents (total effect size = 0.39, small effect, with 95% Confidence Interval of 0.07 to 0.72). In addition, these models, along with another programme called Fair Play, also achieved significant increases as regards respect for the social conventions of sport (total effect size = 0.67, moderate effect, with 95% IC from 0.25 to 1.10). Conclusions In conclusion, the use of interventions related to the above-mentioned models is recommended when it is intended to encourage respect for opponents and social conventions. These considerations could be useful to both teachers and coaches in order to further cultivate these important attitudes.

scholarly journals Considering the methodological limitations in the evidence base of antidepressants for depression: a reanalysis of a network meta-analysis

BMJ Open ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. e024886 ◽  
Author(s):  
Klaus Munkholm ◽  
Asger Sand Paludan-Müller ◽  
Kim Boesen
Keyword(s):  
Systematic Review ◽  
Clinical Study ◽  
Effect Size ◽  
Meta Analysis ◽  
Evidence Base ◽  
Risk Of Bias ◽  
Depression Symptom ◽  
Meta Analyses ◽  
The Impact ◽  
Clinical Study Reports

ObjectivesTo investigate whether the conclusion of a recent systematic review and network meta-analysis (Ciprianiet al) that antidepressants are more efficacious than placebo for adult depression was supported by the evidence.DesignReanalysis of a systematic review, with meta-analyses.Data sources522 trials (116 477 participants) as reported in the systematic review by Ciprianiet aland clinical study reports for 19 of these trials.AnalysisWe used the Cochrane Handbook’s risk of bias tool and the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach to evaluate the risk of bias and the certainty of evidence, respectively. The impact of several study characteristics and publication status was estimated using pairwise subgroup meta-analyses.ResultsSeveral methodological limitations in the evidence base of antidepressants were either unrecognised or underestimated in the systematic review by Ciprianiet al. The effect size for antidepressants versus placebo on investigator-rated depression symptom scales was higher in trials with a ‘placebo run-in’ study design compared with trials without a placebo run-in design (p=0.05). The effect size of antidepressants was higher in published trials compared with unpublished trials (p<0.0001). The outcome data reported by Ciprianiet aldiffered from the clinical study reports in 12 (63%) of 19 trials. The certainty of the evidence for the placebo-controlled comparisons should be very low according to GRADE due to a high risk of bias, indirectness of the evidence and publication bias. The mean difference between antidepressants and placebo on the 17-item Hamilton depression rating scale (range 0–52 points) was 1.97 points (95% CI 1.74 to 2.21).ConclusionsThe evidence does not support definitive conclusions regarding the benefits of antidepressants for depression in adults. It is unclear whether antidepressants are more efficacious than placebo.

scholarly journals The Effect of Mindfulness-Based Interventions on Stress, Depression and Anxiety During the Perinatal Period in Women Without Pre-existing Stress, Depressive or Anxiety Disorders: a Systematic Review and Meta-analysis of Controlled Trials

Mindfulness ◽  
2021 ◽  
Author(s):  
Linda Corbally ◽  
Mick Wilkinson
Keyword(s):  
Mental Health ◽  
Systematic Review ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Perinatal Period ◽  
Health Issues ◽  
Symptoms Of Depression ◽  
Mental Health Issues ◽  
Meta Analyses ◽  
Trial Evidence

Abstract Objectives The objective of this systematic review and meta-analysis was to examine controlled trial evidence for the effectiveness of mindfulness-based interventions on stress, anxiety and depression in the perinatal period in women without pre-existing mental health issues. Methods Six databases were searched for studies exploring the effects of mindfulness-based interventions on mental health outcomes of women during the perinatal period. Quality of both controlled trial meeting inclusion criteria were assessed using a tool specifically designed for meta-analyses of mindfulness-based interventions. Effect sizes were extracted for measures of mindfulness, depression, stress and anxiety outcomes. Effects were pooled in separate meta-analyses for all outcomes except anxiety which lacked sufficient studies. Results Twelve studies were analysed. Pooled effects suggest that mindfulness-based interventions cause small but clear increases in mindfulness and reductions in depression in women without pre-existing disorders. Effects of mindfulness-based interventions on other outcomes were unclear and confounded by heterogeneity. Conclusions Available controlled trial evidence suggests that mindfulness-based interventions improve mindfulness and decrease symptoms of depression during pregnancy in women without pre-existing mental health issues and might be a useful approach to prevent or attenuate the development of depression in the perinatal period.

scholarly journals Sex Differences in Presentation of Stroke: A Systematic Review and Meta-Analysis

Stroke ◽  
2021 ◽  
Author(s):  
Mariam Ali ◽  
Hendrikus J.A. van Os ◽  
Nelleke van der Weerd ◽  
Jan W. Schoones ◽  
Martijn W. Heymans ◽  
...  
Keyword(s):  
Systematic Review ◽  
Sex Differences ◽  
Acute Stroke ◽  
Transient Ischemic Attack ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Neurological Symptoms ◽  
Cross Sectional ◽  
Ischemic Attack ◽  
Meta Analyses

Background and Purpose: Women have worse outcomes than men after stroke. Differences in presentation may lead to misdiagnosis and, in part, explain these disparities. We investigated whether there are sex differences in clinical presentation of acute stroke or transient ischemic attack. Methods: We conducted a systematic review and meta-analysis according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Inclusion criteria were (1) cohort, cross-sectional, case-control, or randomized controlled trial design; (2) admission for (suspicion of) ischemic or hemorrhagic stroke or transient ischemic attack; and (3) comparisons possible between sexes in ≥1 nonfocal or focal acute stroke symptom(s). A random-effects model was used for our analyses. We performed sensitivity and subanalyses to help explain heterogeneity and used the Newcastle-Ottawa Scale to assess bias. Results: We included 60 studies (n=582 844; 50% women). In women, headache (pooled odds ratio [OR], 1.24 [95% CI, 1.11–1.39]; I 2 =75.2%; 30 studies) occurred more frequently than in men with any type of stroke, as well as changes in consciousness/mental status (OR, 1.38 [95% CI, 1.19–1.61]; I 2 =95.0%; 17 studies) and coma/stupor (OR, 1.39 [95% CI, 1.25–1.55]; I 2 =27.0%; 13 studies). Aspecific or other neurological symptoms (nonrotatory dizziness and non-neurological symptoms) occurred less frequently in women (OR, 0.96 [95% CI, 0.94–0.97]; I 2 =0.1%; 5 studies). Overall, the presence of focal symptoms was not associated with sex (pooled OR, 1.03) although dysarthria (OR, 1.14 [95% CI, 1.04–1.24]; I 2 =48.6%; 11 studies) and vertigo (OR, 1.23 [95% CI, 1.13–1.34]; I 2 =44.0%; 8 studies) occurred more frequently, whereas symptoms of paresis/hemiparesis (OR, 0.73 [95% CI, 0.54–0.97]; I 2 =72.6%; 7 studies) and focal visual disturbances (OR, 0.83 [95% CI, 0.70–0.99]; I 2 =62.8%; 16 studies) occurred less frequently in women compared with men with any type of stroke. Most studies contained possible sources of bias. Conclusions: There may be substantive differences in nonfocal and focal stroke symptoms between men and women presenting with acute stroke or transient ischemic attack, but sufficiently high-quality studies are lacking. More studies are needed to address this because sex differences in presentation may lead to misdiagnosis and undertreatment.

scholarly journals Comparison of splint and conventional cast for treating wrist torus fractures in children (systematic review)

2017 ◽  
Vol 6 (4) ◽  
Author(s):  
Abdulrahman Alsawadi ◽  
Mustafa Abbas
Keyword(s):  
Systematic Review ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Cost Effective ◽  
Easy Access ◽  
Fractures In Children ◽  
Cost Effective Treatment ◽  
Electronic Database Search ◽  
Randomised Controlled ◽  
Meta Analyses

<span>Wrist torus fractures in children are common. Although it might be simple and straightforward, the management of these injuries remains controversial and depends on the personal experience and preference of the treating physician. The consensus agreement, however, is that these fractures are inherently stable. Some authors argue that splints should replace the traditional method of cast immobilisation. The splints are viewed as easier to use, more convenient and do not require follow up clinics for removal. It has also been argued that splints are more cost-effective than casts. The aim of this systematic review is to examine the effectiveness and cost-effectiveness of removable splints versus casts in the treatment of torus wrist fractures of children in the current literature. This review followed the Systematic reviews and Meta-Analyses (PRISMA) statement for reporting. Comprehensive electronic database search and handsearch were conducted. Studies were considered for review if they were randomised or quasi-randomised controlled trial and compared removable splints and casts for treating torus fractures of distal radius and/or ulna in children. Four papers identified by two reviewers as potentially eligible for inclusion were appraised and two identified for inclusion were further assessed for any risk of bias. Data were narratively presented and discussed as meta-analysis would not have been possible for the identified studies. The limited available data favours the use of splint as a clinically effective and more cost-effective method of immobilisation. However, the findings of the systematic review are limited by the quality of the identified studies. It has been viewed that explanation to patients and parents and involving them in the decision, plus implementation of safety protocol to avoid under-treatment of misdiagnosed fractures and allow easy access of patients to the clinic, is an alternative way to provide safe, convenient and cost-effective treatment. </span>

Experimental and Quasi-Experimental Studies of Inquiry-Based Science Teaching

2012 ◽  
Vol 82 (3) ◽  
pp. 300-329 ◽  
Author(s):  
Erin Marie Furtak ◽  
Tina Seidel ◽  
Heidi Iverson ◽  
Derek C. Briggs
Keyword(s):  
Science Education ◽  
Education Reform ◽  
Science Teaching ◽  
Effect Size ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Effect Sizes ◽  
Science Education Reform ◽  
Quasi Experimental ◽  
Meta Analyses

Although previous meta-analyses have indicated a connection between inquiry-based teaching and improved student learning, the type of instruction characterized as inquiry based has varied greatly, and few have focused on the extent to which activities are led by the teacher or student. This meta-analysis introduces a framework for inquiry-based teaching that distinguishes between cognitive features of the activity and degree of guidance given to students. This framework is used to code 37 experimental and quasi-experimental studies published between 1996 and 2006, a decade during which inquiry was the main focus of science education reform. The overall mean effect size is .50. Studies that contrasted epistemic activities or the combination of procedural, epistemic, and social activities had the highest mean effect sizes. Furthermore, studies involving teacher-led activities had mean effect sizes about .40 larger than those with student-led conditions. The importance of establishing the validity of the treatment construct in meta-analyses is also discussed.

scholarly journals Effects of Ashwagandha (Withania somnifera) on VO2max: A Systematic Review and Meta-Analysis

Nutrients ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1119 ◽  
Author(s):  
Jorge Pérez-Gómez ◽  
Santos Villafaina ◽  
José Carmelo Adsuar ◽  
Eugenio Merellano-Navarro ◽  
Daniel Collado-Mateo
Keyword(s):  
Systematic Review ◽  
Withania Somnifera ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Assessment Development ◽  
Before And After ◽  
The Mean ◽  
Meta Analyses ◽  
Grade Approach

The purpose of this study was to systematically review the scientific literature about the effects of supplementation with Ashwagandha (Withania somnifera) on maximum oxygen consumption (VO2max), as well as to provide directions for clinical practice. A systematic search was conducted in three electronic databases following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Guidelines (PRISMA). The inclusion criteria were: (a) VO2max data, with means ± standard deviation before and after the supplement intervention, (b) the study was randomized controlled trial (RCT), (c) the article was written in English. The quality of evidence was evaluated according to the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach. A meta-analysis was performed to determine effect sizes. Five studies were selected in the systematic review (162 participants) and four were included in the meta-analysis (142 participants). Results showed a significant enhancement in VO2max in healthy adults and athletes (p = 0.04). The mean difference was 3.00 (95% CI from 0.18 to 5.82) with high heterogeneity. In conclusion, Ashwagandha supplementation might improve the VO2max in athlete and non-athlete people. However, further research is need to confirm this hypothesis since the number of studies is limited and the heterogeneity was high.

scholarly journals Robotic-Assisted Gait Training Effect on Function and Gait Speed in Subacute and Chronic Stroke Population: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

2019 ◽  
Vol 81 (3-4) ◽  
pp. 103-111 ◽  
Author(s):  
Jaya Shanker Tedla ◽  
Snehil Dixit ◽  
Kumar Gular ◽  
Mohammed Abohashrh
Keyword(s):  
Systematic Review ◽  
Effect Size ◽  
Gait Speed ◽  
Meta Analysis ◽  
Gait Training ◽  
Chronic Stroke ◽  
Total Effect ◽  
Controlled Trials ◽  
Randomized Controlled ◽  
Subacute Stroke

Background: The review is intended to provide the effectiveness of robotic-assisted gait training (RAGT) for functional gait recovery in poststroke survivors through a systematic review and to provide evidence for gait speed improvements through the meta-analysis of randomized controlled trials (RCTs). Summary: In this systematic review, PubMed, Web of Science, Wiley Online Library, Science Direct, Science Robotics, Scopus, UpToDate, MEDLINE, Google Scholar, ­CINHAL, EMBASE, and EBSCO were reviewed to identify relevant RCTs. Articles included in the study were thoroughly examined by 2 independent reviewers. The included RCTs were having a PEDro score between 6 and 8 points. The initial database review yielded 1,371 studies and, following further screening; 9 studies finally were selected for systematic review and meta-analysis. Out of the 9 studies, 4 were on chronic stroke and 5 were on subacute stroke. The meta-analysis of gait speed showed an effect size value ranging between –0.91 and 0.64, with the total effect size of all the studies being –0.12. During subgroup analysis, the subacute stroke total effect size was identified as –0.48, and the chronic stroke total effect size was noted as 0.04. Meta-analysis revealed no significant differences between RAGT and conventional gait training (CGT). Key Messages: Our systematic review revealed that the RAGT application demonstrated a better or similar effect to that of CGT in a poststroke population. A meta-analysis of gait speed involving all the studies identified here indicated no significant differences between RAGT and CGT. However, the subanalysis of chronic stroke survivors showed a slight positive effect of RAGT on gait speed.

scholarly journals Efficacy of mobilisation with movement in chronic shoulder pain: protocol for a systematic review and meta-analysis of controlled trials

BMJ Open ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. e049563
Author(s):  
Arnstein Storås ◽  
Fabian Lillebostad ◽  
Sturla Haslerud ◽  
Jon Joensen ◽  
Jan Magnus Bjordal ◽  
...  
Keyword(s):  
Systematic Review ◽  
Shoulder Pain ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Controlled Trials ◽  
Cochrane Central Register ◽  
Musculoskeletal Problems ◽  
Evidence Database ◽  
Meta Analyses ◽  
Chronic Shoulder Pain

IntroductionShoulder pain affects approximately one in four adults and is thus one of the most common musculoskeletal problems. Only 50% of patients who begin treatment for shoulder pain are cured within 6 months. There is a need for systematic reviews to estimate the effectiveness of shoulder treatments. We decided to evaluate the effect of mobilisation with movement (MWM) on chronic shoulder pain in a systematic review.Methods and analysisThe review will include controlled trial articles identified via five electronic databases (PubMed, Embase, Cumulative Index to Nursing and Allied Health Literature, Physiotherapy Evidence Database and Cochrane Central Register of Controlled Trials), reference lists, citations searches and experts in the field. Only controlled trials involving participants with a mean duration of pain of ≥3 months, in which the effectiveness of MWM has been compared with non-invasive treatments, sham mobilisation or wait-and-see will be included. The included trials will be synthesised with random effects meta-analyses. Risk-of-bias will be assessed with the Physiotherapy Evidence Database 0–10 point scale.Ethics and disseminationThe review does not require ethics approval as it is based on anonymised data from trial reports. The results of the review will be disseminated through a peer-reviewed publication.PROSPERO registration numberCRD42018109380.

Systematic Reviews and Meta-Analyses of Crime Prevention Evaluations

2018 ◽  
Author(s):  
Anthony Petrosino ◽  
Claire Morgan ◽  
Trevor Fronius
Keyword(s):  
Systematic Review ◽  
Systematic Reviews ◽  
Effect Size ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Small Sample ◽  
Effect Sizes ◽  
What Works ◽  
Management Procedures ◽  
Meta Analyses

Systematic reviews and meta-analyses have become a focal point of evidence-based policy in criminology. Systematic reviews use explicit and transparent processes to identify, retrieve, code, analyze, and report on existing research studies bearing on a question of policy or practice. Meta-analysis can combine the results from the most rigorous evaluations identified in a systematic review to provide policymakers with the best evidence on what works for a variety of interventions relevant to reducing crime and making the justice system fairer and more effective. The steps of a systematic review using meta-analysis include specifying the topic area, developing management procedures, specifying the search strategy, developing eligibility criteria, extracting data from the studies, computing effect sizes, developing an analysis strategy, and interpreting and reporting the results. In a systematic review using meta-analysis, after identifying and coding eligible studies, the researchers create a measure of effect size for each experimental versus control contrast of interest in the study. Most commonly, reviewers do this by standardizing the difference between scores of the experimental and control groups, placing outcomes that are conceptually similar but measured differently (e.g., such as re-arrest or reconviction) on the same common scale or metric. Though these are different indices, they do measure a program’s effect on some construct (e.g., criminality). These effect sizes are usually averaged across all similar studies to provide a summary of program impact. The effect sizes also represent the dependent variable in the meta-analysis, and more advanced syntheses explore the role of potential moderating variables, such as sample size or other characteristics related to effect size. When done well and with full integrity, a systematic review using meta-analysis can provide the most comprehensive assessment of the available evaluative literature addressing the research question, as well as the most reliable statement about what works. Drawing from a larger body of research increases statistical power by reducing standard error; individual studies often use small sample sizes, which can result in large margins of error. In addition, conducting meta-analysis can be faster and less resource-intensive than replicating experimental studies. Using meta-analysis instead of relying on an individual program evaluation can help ensure that policy is guided by the totality of evidence, drawing upon a solid basis for generalizing outcomes.

scholarly journals Copenhagen Adduction Exercise to Increase Eccentric Strength: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 10 (8) ◽  
pp. 2863
Author(s):  
Jorge Pérez-Gómez ◽  
Santos Villafaina ◽  
José Carmelo Adsuar ◽  
Jorge Carlos-Vivas ◽  
Miguel Ángel Garcia-Gordillo ◽  
...  
Keyword(s):  
Systematic Review ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Outcome Variable ◽  
Football Players ◽  
Training Methods ◽  
Assessment Development ◽  
Before And After ◽  
Large Heterogeneity ◽  
Meta Analyses

Background: The purpose of this study was to systematically review the scientific literature about the benefits of using the Copenhagen Adductor (CA) exercise to improve eccentric hip adduction strength (EHAD), as well as to provide directions for training. Methods: A systematic search was conducted in three electronic databases following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The inclusion criteria were: (a) EHAD as outcome variable, with means and standard deviations before and after the intervention, (b) the study was a randomized controlled trial using the CA in the program intervention, (c) the article was written in English. The quality of evidence was evaluated according to the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) guidelines. A mini meta-analysis was performed to determine the overall effect. Results: Three studies were selected and included in this systematic review and mini meta-analysis. All articles reported significant enhancement in EHAD in football (soccer) players. The overall effect for the EHAD test was significant in favor to CA group (mean difference = 0.61; 95% CI from 0.20 to 1.01; p = 0.003) with large heterogeneity. Conclusions: CA exercise performed 2–3 times for 8 weeks is useful for improving EHAD in football players.

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