scholarly journals Effects of flywheel training on strength-related variables in female populations. A systematic review

2020 ◽  
Author(s):  
Javier Raya González ◽  
Kevin de Keijzer ◽  
Chris bishop ◽  
Marco Beato
Keyword(s):  
Web Of Science ◽  
Meta Analysis ◽  
Average Score ◽  
Future Research ◽  
Young Females ◽  
Elderly Female ◽  
Morphological Adaptations ◽  
Training Methodologies ◽  
Practical Recommendations

ABSTRACTBackground: This study aimed to evaluate the effect of flywheel training on female populations, report practical recommendations for practitioners based on the current available evidence, underline the limitations of current literature, and establish future research directions.Methods: Studies were searched through the electronic databases (PubMed, SPORTDiscus, and Web of Science) following the preferred reporting items for systematic reviews and meta-analysis statement guidelines.Results: The methodological quality of the 7 studies included in this review ranged from 10 to 19 points (good to excellent), with an average score of 14-points (good). These studies were carried out between 2004 and 2019 and comprised a total of 100 female participants. The training duration ranged from 5 weeks to 24 weeks, with volume ranging from 1 to 4 sets and 7 to 12 repetitions, and frequency ranged from 1 to 3 times a week. Discussion: The literature suggests that flywheel training is a safe and time effective strategy to obtain lower limb performance enhancements and positive muscle morphological adaptations with elderly and young females. The present literature, although limited, supports the use flywheel training for the prevention of falls and the enhancement of physical capabilities in young and elderly female populations. Nonetheless, a lack of clarity still exists regarding appropriate flywheel training volume, frequency, and intensity. Further high-quality investigation into this topic is warranted to establish clear guidelines about the use of flywheel training methodologies with female populations.

scholarly journals Exploring the Emerging Domain of Research on Video Game Live Streaming in Web of Science: State of the Art, Changes and Trends

2021 ◽  
Vol 18 (6) ◽  
pp. 2917
Author(s):  
Luis Javier Cabeza-Ramírez ◽  
Fernando J. Fuentes-García ◽  
Guzmán A. Muñoz-Fernandez
Keyword(s):  
Video Game ◽  
Web Of Science ◽  
Meta Analysis ◽  
Future Research ◽  
Live Streaming ◽  
Main Research ◽  
Meta Review ◽  
Streaming Services ◽  
And Gender

In recent years, interest in video game live streaming services has increased as a new communication instrument, social network, source of leisure, and entertainment platform for millions of users. The rise in this type of service has been accompanied by an increase in research on these platforms. As an emerging domain of research focused on this novel phenomenon takes shape, it is necessary to delve into its nature and antecedents. The main objective of this research is to provide a comprehensive reference that allows future analyses to be addressed with greater rigor and theoretical depth. In this work, we developed a meta-review of the literature supported by a bibliometric performance and network analysis (BPNA). We used the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) protocol to obtain a representative sample of 111 published documents since 2012 and indexed in the Web of Science. Additionally, we exposed the main research topics developed to date, which allowed us to detect future research challenges and trends. The findings revealed four specializations or subdomains: studies focused on the transmitter or streamer; the receiver or the audience; the channel or platform; and the transmission process. These four specializations add to the accumulated knowledge through the development of six core themes that emerge: motivations, behaviors, monetization of activities, quality of experience, use of social networks and media, and gender issues.

scholarly journals Depression in the Iranian Elderly: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Hedayat Jafari ◽  
Dariush Ghasemi-Semeskandeh ◽  
Amir Hossein Goudarzian ◽  
Tahereh Heidari ◽  
Azar Jafari-Koulaee
Keyword(s):  
Systematic Review ◽  
Web Of Science ◽  
Meta Analysis ◽  
The Elderly ◽  
Future Research ◽  
Exclusion Criteria ◽  
Standard Scale ◽  
Keywords Screening ◽  
Prevalence Of Depression

Depression can lead to increased medical costs, impaired individual and social functioning, nonadherence to therapeutic proceeding, and even suicide and ultimately affect quality of life. It is important to know the extent of its prevalence for successful planning in this regard. This study was conducted to determine the prevalence of depression in the Iranian elderly. This systematic review and meta-analysis study was done through Medline via PubMed, SCOPUS, Web of Science, ProQuest, SID, Embase, and Magiran with determined keywords. Screening was done on the basis of relevance to the purpose of the study, titles, abstracts, full text, and inclusion and exclusion criteria. The quality of the articles was assessed using the Newcastle-Ottawa standard scale. After primary and secondary screening, 30 articles were finally included in the study. According to the 30 articles reviewed, the prevalence of depression in the Iranian elderly was 52 percent based on the random-effects model (CI 95%: 46–58). According to the results of the present study, depression in the Iranian elderly was moderate to high. Therefore, more exact assessment in terms of depression screening in elderly people seems necessary. Coherent and systematic programs, including psychosocial empowerment counselling for the elderly and workshops for their families, are also needed. Researchers can also use the results of this study for future research.

scholarly journals Microplastic contamination of salt intended for human consumption: a systematic review and meta-analysis

2020 ◽  
Vol 2 (12) ◽  
Author(s):  
Evangelos Danopoulos ◽  
Lauren Jenner ◽  
Maureen Twiddy ◽  
Jeanette M. Rotchell
Keyword(s):  
Systematic Review ◽  
Assessment Tool ◽  
Meta Analysis ◽  
Future Research ◽  
Human Consumption ◽  
Inclusion Criteria ◽  
Research Findings ◽  
Human Health Effects ◽  
Potential Human Health

Abstract Microplastics (MPs) are an emerging contaminant ubiquitous in the environment. There is growing concern regarding potential human health effects, a major human exposure route being dietary uptake. We have undertaken a systematic review (SR) and meta-analysis to identify all relevant research on MP contamination of salt intended for human consumption. Three thousand nine hundred and nineteen papers were identified, with ten fitting the inclusion criteria. A search of the databases MEDLINE, EMBASE and Web of Science, from launch date to September 2020, was conducted. MP contamination of salt varied significantly between four origins, sea salt 0–1674 MPs/kg, lake salt 8–462 MPs/kg, rock and well salt 0–204 MPs/kg. The majority of samples were found to be contaminated by MPs. Corresponding potential human exposures are estimated to be 0–6110 MPs per year (for all origins), confirming salt as a carrier of MPs. A bespoke risk of bias (RoB) assessment tool was used to appraise the quality of the studies, with studies demonstrating moderate to low RoB. These results suggest that a series of recurring issues need to be addressed in future research regarding sampling, analysis and reporting to improve confidence in research findings.

scholarly journals Anxiety disorders and risk of stroke: A systematic review and meta-analysis

2017 ◽  
Vol 41 (1) ◽  
pp. 102-108 ◽  
Author(s):  
M. Pérez-Piñar ◽  
L. Ayerbe ◽  
E. González ◽  
R. Mathur ◽  
Q. Foguet-Boreu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Anxiety Disorders ◽  
Critical Appraisal ◽  
Web Of Science ◽  
Meta Analysis ◽  
Significant Heterogeneity ◽  
Explanatory Factors ◽  
Increased Risk ◽  
Severe Anxiety

AbstractBackgroundAnxiety disorders are the most common mental health problem worldwide. However, the evidence on the association between anxiety disorders and risk of stroke is limited. This systematic review and meta-analysis presents a critical appraisal and summary of the available evidence on the association between anxiety disorders and risk of stroke.MethodsCohort studies reporting risk of stroke among patients with anxiety disorders were searched in PubMed, Embase, PsycINFO, Scopus, and the Web of Science, from database inception to June 2016. The quality of the studies was assessed using standard criteria. A meta-analysis was undertaken to obtain pooled estimates of the risk of stroke among patients with anxiety disorders.ResultsEight studies, including 950,759 patients, from the 11,764 references initially identified, were included in this review. A significantly increased risk of stroke for patients with anxiety disorders was observed, with an overall hazard ratio: 1.24 (1.09–1.41), P = 0.001. No significant heterogeneity between studies was detected and the funnel plot suggested that publication bias was unlikely. Limited evidence suggests that the risk of stroke is increased shortly after the diagnosis of anxiety and that risk of stroke may be higher for patients with severe anxiety.ConclusionsAnxiety disorders are a very prevalent modifiable condition associated with risk of stroke increased by 24%. This evidence could inform the development of interventions for the management of anxiety and the prevention of stroke. Further studies on the risk of stroke in patients with anxiety, and the explanatory factors for this association, are required.

scholarly journals Anxiety and new onset of cardiovascular disease: critical review and meta-analysis

2016 ◽  
Vol 208 (3) ◽  
pp. 223-231 ◽  
Author(s):  
Neeltje M. Batelaan ◽  
Adrie Seldenrijk ◽  
Mariska Bot ◽  
Anton J. L. M. van Balkom ◽  
Brenda W. J. H. Penninx
Keyword(s):  
Cardiovascular Disease ◽  
Meta Analysis ◽  
Population Based ◽  
Future Research ◽  
Cvd Prevention ◽  
Traditional Risk Factors ◽  
Independent Association ◽  
New Onset

BackgroundAnxiety has been associated with new-onset cardiovascular disease (CVD), but the quality of this relationship is unclear. Only if anxiety is a causal, independent cardiovascular risk factor might it be a target for CVD prevention.AimsTo determine and examine the independent association and causality between anxiety and incident CVD.MethodPubMed, EMBASE and PsycINFO databases were searched up to October 2013. A review of Hill's criteria for causality and random effects meta-analysis were conducted of prospective, population-based studies examining anxiety and incident CVD in people free from CVD at baseline.ResultsThe meta-analysis comprised 37 papers (n= 1 565 699). The follow-up ranged from 1 to 24 years. Anxiety was associated with a 52% increased incidence of CVD (hazard ratio = 1.52, 95% CI 1.36–1.71). The risk seemed independent of traditional risk factors and depression. The evaluation of Hill's criteria largely argued in favour of causality.ConclusionsAnxiety may be of interest for CVD prevention. Future research should examine biological and behavioural underpinnings of the association in order to identify targets for intervention.

Factors Influencing Consumer Behaviour towards Store Brand: A Meta-Analysis

2012 ◽  
Vol 54 (3) ◽  
pp. 407-430 ◽  
Author(s):  
Xiaojun Fan ◽  
Yi Qian ◽  
Pei Huang
Keyword(s):  
Consumer Behaviour ◽  
Brand Management ◽  
Meta Analysis ◽  
Product Category ◽  
Future Research ◽  
Store Brand ◽  
Store Brands ◽  
Related Factors ◽  
Price Consciousness

In order to improve the effectiveness of store brand management, this study presents a meta-analysis that aggregates empirical findings from the literature on consumer behaviour towards store brands. First, the study provides a quantitative summary of bivariate findings regarding the way consumer-related factors influence store brand success. Second, the authors analyse the moderating effect of market context, product category and data type on store brand success. The resulting analysis suggest that price consciousness, quality consciousness, familiarity with store brands and perceived quality of store brands are the four most important factors that significantly influence consumer behaviour towards store brands. Market context and product category also exert significant moderating effects on the influence of some factors on consumer behaviour towards store brands. On the basis of these findings, this study concludes with a discussion of practical implications and possible directions for future research.

scholarly journals Quality of Research Design Moderates Effects of Grade Retention on Achievement: A Meta-Analytic, Multilevel Analysis

2009 ◽  
Vol 31 (4) ◽  
pp. 480-499 ◽  
Author(s):  
Chiharu S. Allen ◽  
Qi Chen ◽  
Victor L. Willson ◽  
Jan N. Hughes
Keyword(s):  
Grade Retention ◽  
Negative Impact ◽  
Meta Analysis ◽  
Median Number ◽  
Effect Sizes ◽  
Future Research ◽  
Negative Effects ◽  
Design Quality ◽  
Individual Level

The present meta-analysis examines the effect of grade retention on academic outcomes and investigates systemic sources of variability in effect sizes. Using multilevel modeling (MLM), the authors investigate characteristics of 207 effect sizes across 22 studies published between 1990 and 2007 at two levels: the study (between) and individual (within) levels. Design quality is a study-level variable. Individual-level variables are median grade retained and median number of years postretention. Quality of design is associated with less negative effects. Years postretention is negatively associated with retention effects, and this effect is stronger for studies using grade comparisons versus age comparisons. The results challenge the widely held view that retention has a negative impact on achievement. Suggestions for future research are discussed.

scholarly journals Hospital Location Selection: A Systematic Literature Review on Methodologies and Applications

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Muhammet Gul ◽  
Ali Fuat Guneri
Keyword(s):  
Literature Review ◽  
Systematic Literature Review ◽  
Selection Criteria ◽  
Meta Analysis ◽  
Multicriteria Decision Making ◽  
Future Research ◽  
Location Selection ◽  
Research Questions ◽  
Creative Studies

The increased focus of people on the quality of health care in recent years has led hospital owners to develop strategies and policies to improve medical services through the establishment of new hospitals. For hospitals to be competitive, the hospitalʼs location and proximity to potential patients are considered crucial factors in establishing new hospitals. In this context, evaluating and selecting the most suitable hospital location to establish a new hospital from the multicriteria decision-making (MCDM) perspective is a priority for the entrepreneurs or government to gain a competitive advantage. Therefore, this study aims to present a systematic literature review of the hospital location selection problem considering the applied methods and application areas. The preferred reporting items for systematic review and meta-analysis statement (PRISMA) are used as a reference framework. Initially, known electronic databases (Web of science, IEEEXplore, Scopus, Science direct, and Google Scholar) were searched up to the early 2021. A number of 47 articles are selected and analyzed under this systematic framework based on inclusion-exclusion points. State-of-the-art developments in adopting MCDM methods and their fuzzy extensions are summarized. All the articles have been examined in a systematic taxonomy to find answers to six research questions (trend, country of origin, outlet journal, MCDM methods used, MCDM environment and criteria type, and decision criteria used). Results show that (1) AHP and GIS-based MCDM models are the most contributing approaches to the solution of this problem, (2) location selection criteria are mostly cost, demand, environment, population, government, competition in the market, and distance to some important places, (3) the fuzzy structure is also preferred in addition to the MCDM structure depending on the crisp data type, and (4) the location selection criteria are mostly considered subjective. We pay attention to promising directions that can dominate future research in this field from a methodological or applicability perspective. This study shows the current views and opportunities for researchers and practitioners and acts as a guide to encourage more creative studies in this field.

scholarly journals Microbial food safety in Ghana: a meta-analysis

2012 ◽  
Vol 6 (12) ◽  
pp. 828-835 ◽  
Author(s):  
Courage Kosi Setsoafia Saba ◽  
Bruno Gonzalez-Zorn
Keyword(s):  
Food Safety ◽  
Meta Analysis ◽  
Food Contamination ◽  
Food Samples ◽  
Future Research ◽  
Fermented Foods ◽  
Food Research ◽  
Food Borne ◽  
Contaminated Food

Introduction: Food safety is a crucial factor in the growth of developing countries worldwide. In this study, we present a meta-analysis of microbiological food safety publications from Ghana. Methodology: The search words “Ghana food safety”, “Ghana food research”, and “Ghana food bacteria” were used to search for microbiological food safety publications with related abstracts or titles in PubMed, published between 1997 and 2009. We obtained 183 research articles, from which we excluded articles concerning ready-to-eat microbial fermented foods and waterborne microorganisms as well as articles without abstracts. The criteria used for analysis of these publications were based on an assessment of methodological soundness previously developed for use in the medical field, with some modifications incorporated. Results: The most predominant bacteria in Ghanain foods are Enterobacter spp., Citrobacter spp., Klebsiella spp. and Escherichia spp., which were found to be present in 65%, 50%, 46% and 38% respectively, of the food samples considered in the studies analysed. The most contaminated food samples were macaroni, salad, and milk. Although the methodological quality of the articles was generally sound, most of them did not give directions for future research. Several did not state possible reasons for differences between studies. Conclusion: The microbiological food contamination in Ghana is alarming. However, we found that the downward trend in publications of microbial food safety articles is appalling. Hence a concerted effort in research on food safety is needed in Ghana to help curb the incidence of preventable food-borne disease.

scholarly journals Evaluation of benefits and harms of surgical treatments for post-radical prostatectomy urinary incontinence: a systematic review and meta-analysis protocol

F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 1155
Author(s):  
Roselyne Choiniere ◽  
Patrick O. Richard ◽  
Melanie Morin ◽  
Le-Mai Tu ◽  
Gordon H. Guyatt ◽  
...  
Keyword(s):  
Systematic Review ◽  
Decision Making ◽  
Urinary Incontinence ◽  
Radical Prostatectomy ◽  
Clinical Decision Making ◽  
Meta Analysis ◽  
Future Research ◽  
Control Group ◽  
Bulking Agents

Background: Post-radical prostatectomy urinary incontinence (PPI) is a frequent and feared complication that can affect approximately 25% of patients. Between 1 and 10% of patients suffering from PPI will require surgery. The effectiveness of the available surgical interventions has only been compared in a few randomized controlled trials and the available reviews have important limitations regarding both benefits and harms that make them insufficient to inform decision-making. The aim of the study is to provide systematic summaries of benefits and harms of contemporary surgical treatment options for PPI through systematic review and meta-analysis using GRADE methodology and reporting in accord with the PRISMA-P statement. Methods: Studies pertaining to bulking agents, male synthetic slings, compressive balloon systems (ProACT) or artificial urinary sphincters (AUS) used for the treatment of patients suffering from PPI will be included. A systematic search will be conducted using the OVID and PubMED platforms in MEDLINE, Embase and Cochrane databases, and reference lists of relevant reviews and guidelines. Trained independent reviewers will conduct study selection and data extraction. Outcomes will include the number of pads used per day, the 24-h pad weight test, the Patient Global Impression of Improvement (PGI-I) and the Incontinence Quality of Life (IQOL) as possible benefits and the reoperations, the Clavien-Dindo complications and the other reported adverse events as the harms. When possible, pooled analyses will be completed. Risk of bias will be assessed using the CLARITY tools and a new tool for the before-and-after studies without a control group. Finally, study heterogeneity will be assessed, publication bias will be evaluated with funnel plots and quality of evidence rated for each outcome. Discussion: Our study will address patient-important outcomes and will be useful in clinical decision-making as well as identifying key elements for future research. Study registration: PROSPERO: CRD42018073923 05/12/2018

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