scholarly journals Association of Obesity and Covid-19 Severity: The Systematic Review

2021 ◽  
Vol 8 (11) ◽  
pp. 5802-5807
Author(s):  
Daniel Setiawan Nathan ◽  
Hoo Yumilia
Keyword(s):  
Systematic Review ◽  
Animal Studies ◽  
Primary Data ◽  
Severe Illness ◽  
Central Adiposity ◽  
Inclusion Criteria ◽  
Is Research ◽  
Novel Coronavirus ◽  
Visceral Adipose ◽  
The Relationship

Introduction: Obesity is a common, serious, and costly chronic disease. Having obesity puts people at risk for many other serious chronic diseases and increases the risk of severe illness from COVID-19. This study was designed to collect data on the association between obesity and severity of COVID-19. Methods: This study is a systematic review. We searched for the keywords “coronavirus disease 2019” or “covid-19” or “2019 novel coronavirus” or “2019-ncov” or “novel coronavirus 2019 infection” or “2019-ncov infection” or “severe acute respiratory syndrome coronavirus 2” or “sars-cov-2”) and “obesity” or “overweight” or “body mass index” or “BMI” or “visceral fat” or “excessive fat” or “abdominal fat” or “visceral adipose tissue” or “visceral adiposity” or “central adiposity” or “waist circumference” or “risk factors” or “factor” or “risk factor” or “clinical characteristics” or “clinical features”. The study included in this is research that focuses on the relationship between obesity and severity of COVID-19. The inclusion criteria of the research that will be included are studies that examine the relationship between obesity and severity of COVID-19, with adult subjects (not animal studies), research conducted within the last ten years and using primary data. The purpose of this study was to examine the relationship between obesity and severity of COVID-19. Results: We found several relevant journals or articles related to the relationship between obesity and severity of COVID-19. The search results in the Pubmed journal database; we found one journal that discusses the relationship between obesity and severity of COVID-19. A Google scholar search shows five studies relevant to this study. Conclusion: Obesity in many studies has been associated with the severity of COVID-19. There are several possible pathways that are thought to cause this severity. First, obesity is associated with altered inflammatory performance. Second, obesity is associated with other comorbidities.

scholarly journals Caffeine and Cognitive Functions in Sports: A Systematic Review and Meta-Analysis

Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 868
Author(s):  
Jorge Lorenzo Calvo ◽  
Xueyin Fei ◽  
Raúl Domínguez ◽  
Helios Pareja-Galeano
Keyword(s):  
Systematic Review ◽  
Reaction Time ◽  
Cognitive Performance ◽  
Cognitive Functions ◽  
Web Of Science ◽  
Meta Analysis ◽  
Caffeine Intake ◽  
Inclusion Criteria ◽  
Research Protocols ◽  
The Relationship

Cognitive functions are essential in any form of exercise. Recently, interest has mounted in addressing the relationship between caffeine intake and cognitive performance during sports practice. This review examines this relationship through a structured search of the databases Medline/PubMed and Web of Science for relevant articles published in English from August 1999 to March 2020. The study followed PRISMA guidelines. Inclusion criteria were defined according to the PICOS model. The identified records reported on randomized cross-over studies in which caffeine intake (as drinks, capsules, energy bars, or gum) was compared to an identical placebo situation. There were no filters on participants’ training level, gender, or age. For the systematic review, 13 studies examining the impacts of caffeine on objective measures of cognitive performance or self-reported cognitive performance were selected. Five of these studies were also subjected to meta-analysis. After pooling data in the meta-analysis, the significant impacts of caffeine only emerged on attention, accuracy, and speed. The results of the 13 studies, nevertheless, suggest that the intake of a low/moderate dose of caffeine before and/or during exercise can improve self-reported energy, mood, and cognitive functions, such as attention; it may also improve simple reaction time, choice reaction time, memory, or fatigue, however, this may depend on the research protocols.

scholarly journals How does academic achievement relate to cardiorespiratory fitness, self-reported physical activity and objectively reported physical activity: a systematic review in children and adolescents aged 6–18 years

2017 ◽  
Vol 52 (16) ◽  
pp. 1039-1039 ◽  
Author(s):  
Adilson Marques ◽  
Diana A Santos ◽  
Charles H Hillman ◽  
Luís B Sardinha
Keyword(s):  
Physical Activity ◽  
Systematic Review ◽  
Academic Achievement ◽  
Children And Adolescents ◽  
Cardiorespiratory Fitness ◽  
Inclusion Criteria ◽  
Eligibility Criteria ◽  
Cross Sectional ◽  
Explanatory Variables ◽  
The Relationship

ObjectiveThis report aimed to systematically review the evidence for a differential association between objective and self-reported physical activity and cardiorespiratory fitness on academic achievement.DesignSystematic review.Data sourcesStudies were identified from searches in Embase, Education Resources Information Center, PubMed, PsycINFO, SPORTdiscus and Web of Science databases from January 2000 to December 2016.Eligibility criteria for selecting studiesEligibility criteria included cross-sectional, longitudinal and interventional study designs. Outcomes included students’ school grade or a standardised test or measure of academic achievement. Explanatory variables were cardiorespiratory fitness and objective and self-reported physical activity. Inclusion criteria included school-aged children and adolescents aged–18 years (or students from primary to secondary school when student’s participants age was not described) and articles published in English, Portuguese or Spanish.ResultsA total of 51 articles met inclusion criteria: 41 cross-sectional, 2 intervention and 8 longitudinal studies. Results from 11 studies were inconsistent regarding the relationship between objectively measured physical activity and academic achievement. Ten of the 16 articles reported positive associations between self-reported physical activity and academic achievement. From the 22 studies that analysed the relationship between cardiorespiratory fitness and academic achievement, it was verified that they all generally support the beneficial effect of cardiorespiratory fitness on students’ academic achievement.ConclusionHigher cardiorespiratory fitness may be important to enhance children and adolescents’ health and, additionally, academic achievement. Due to a lack of consensus across studies, methodological issues associated with the assessment of physical activity should be considered when investigating physical activity and academic achievement.

scholarly journals The relationship between Internet use and self-concept clarity: A systematic review and meta-analysis

2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Cristina Elena Petre
Keyword(s):  
Systematic Review ◽  
Internet Use ◽  
Meta Analysis ◽  
Self Concept ◽  
The Internet ◽  
Inclusion Criteria ◽  
Cross Sectional ◽  
Self Evaluation ◽  
Cross Sectional Design ◽  
The Relationship

There are three hypotheses regarding the relationship between Self-Concept Clarity (SCC) and Internet use. It was argued that Internet use: 1) decreases SCC, 2) increases SCC, 3) does not relate with SCC. The present study, in the form of a systematic and meta-analytic synthesis, aimed to explore: a) the extent empirical evidence can support each hypothesis; b) how Internet use-SCC relationship was addressed across studies; c) the intensity of the Internet use –SCC relationship; d) potential moderators. Twenty-one studies (N = 8,910) met the inclusion criteria for the systematic review (i.e., being quantitative, written in English, concerned with Internet use -SCC relationship) and 11 studies (N = 3,298) met the additional criteria for meta-analysis (i.e., being correlational, using self-evaluation instruments, quantifying general Internet use and including the information needed to calculate the meta-analysis specific indicators). Results emphasized that all three hypotheses are plausible, as distinct dimensions of Internet use related differently with SCC. However, the conclusions were limited by the extensive use of cross-sectional design. For general Internet use and SCC relationship the overall effect was -0.350, p < .01. Some moderators were significant: cultural background, Internet operationalization, age homogeneity, participants rewarding. This paper outlines the complexity of SCC – Internet relationship and underlines some of the gaps that should be further addressed. Implications and limits of the study (e.g., publication bias, excluded outcomes in the meta-analysis or possible omission of moderators) are discussed.

scholarly journals High serum non-high-density lipoprotein and the risk of ischemic stroke: A systematic review

2021 ◽  
Vol 20 (1) ◽  
pp. 15-20
Author(s):  
Nyoman Tyas Apsari ◽  
◽  
Kumara Tini ◽  
I Putu Eka Widyadharma ◽  
◽  
...  
Keyword(s):  
Systematic Review ◽  
Ischemic Stroke ◽  
High Density Lipoprotein ◽  
Large Population ◽  
Density Lipoprotein ◽  
High Serum ◽  
High Density ◽  
Inclusion Criteria ◽  
Increased Risk ◽  
The Relationship

Objectives. High levels of non high density lipoprotein cholesterol (non-HDL-C) are known to contribute to an increased risk of ischemic stroke. This systematic review was conducted to identify the relationship between high non-HDL-C levels and the risk of ischemic stroke. Material and methods. This systematic review using PRISMA (preferred reporting items for systematic reviews and meta-analyses) statement guideline, with a pre-determined search strategy. The search was conducted in Pubmed Central (PMC) and Pubmed from 2009 until 2020 with inclusion criteria, patients with a diagnosis of ischemic stroke, age >18 years, with non-HDL-C levels. The title and abstract of these articles were reviewed for relevance, based on inclusion criteria. This systematic review using STROBE to evaluate the quality in individual study which consists of 22 domains. Results. In the final stage, this systematic review identifies six cohort study consisting 166.720 participants. Overall, the quality in individual studies based on STROBE is good. We reported that there are two studies report that high non-HDL-C levels can significantly increase the risk of ischemic stroke. Meanwhile, there are four studies that report there was no significant relationship between high non-HDL-C levels and the risk of ischemic stroke. Conclusions. Overall, this systematic review provides the result about relationship between high levels of nonHDL-C and the risk of ischemic stroke, there are two studies with a larger population support that high levels of non-HDL-C can increase the risk of ischemic stroke. However, further studies is needed with a large population that specifically identify the relationship between non-HDL-C levels and risk of ischemic stroke and makes a better adjustments for confounding variables.

scholarly journals Lutein Intake and Blood Lutein Concentration Are Positively Associated with Physical Activity in Adults: A Systematic Review

Nutrients ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1186 ◽  
Author(s):  
Madeline Cooke ◽  
Alison Coates ◽  
Elizabeth Buckley ◽  
Jonathan Buckley
Keyword(s):  
Physical Activity ◽  
Systematic Review ◽  
Blood Concentration ◽  
Web Of Science ◽  
Physical Activity Behavior ◽  
Self Report ◽  
Inclusion Criteria ◽  
Activity Behavior ◽  
Measure Of Association ◽  
The Relationship

Lutein is a carotenoid that reduces the risk of some chronic diseases, possibly by altering physical activity behavior. The objective of this study was to conduct a systematic review of studies examining the relationship between lutein status (dietary intake/blood concentration) and physical activity. Peer-reviewed studies published in Medline, Web of Science, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Scopus, and Embase were included if they reported a measure of association between lutein status and physical activity. Seventeen studies met the inclusion criteria. Eleven reported positive associations, three reported mixed results, and three reported no association. Two studies used objective measures of lutein status (blood concentration) and physical activity (accelerometry) and reported positive associations, with correlations of ≥0.36 and differences of ≥57% in physical activity between upper and lower tertiles. Studies using self-report measures reported weaker correlations (r = 0.06 to 0.25), but still more physical activity (18% to ≥600% higher) in those with the highest compared with the lowest lutein status. Higher lutein status may be associated with higher levels of physical activity, which may contribute to a reduced risk of chronic disease.

scholarly journals Community knowledge, attitudes and behaviors in prevention of COVID-19 transmission: A systematic review

2021 ◽  
Vol 10 (1) ◽  
pp. 16
Author(s):  
Kholis Ernawati ◽  
Istri Bela Cantika ◽  
Riska Rammadita Isaputri ◽  
Atika Wahyu Andari ◽  
Muhammad Fajar Ramadhan ◽  
...  
Keyword(s):  
Systematic Review ◽  
Quantitative Research ◽  
Meta Analysis ◽  
Descriptive Analysis ◽  
Primary Data ◽  
Inclusion Criteria ◽  
Social Distancing ◽  
Modes Of Transmission ◽  
Attitudes And Behaviors ◽  
And Behaviors

The research objective was to determine the community's knowledge, attitudes, and behavior in preventing the transmission of COVID-19 with a systematic review approach. The research method used the protocol preferred reporting items for systematic review and meta-analysis (PRISMA). The research variables were sociodemographic, knowledge, attitudes, and behaviors to prevent COVID 19. The search process for articles was accessed on three electronic journal databases. The article inclusion criteria are quantitative research, primary data, and year of publication (January-July 2020), in English, open access; have gone through the peer review stage, and full-text articles. A descriptive analysis was carried out on each research variable. The results showed ten articles that fit the inclusion criteria, consisting of 100% sociodemographic variables, 90% knowledge, 90% attitude, and 80% behavior. The number of articles with significant research results on knowledge variables (covering aspects of disease recognition, modes of transmission, general symptoms, and methods of prevention) was 61.11% of articles. The number of significant articles on attitude variables (including self-isolation, use of masks, social distancing, COVID-19, and government) was 35.54%. The number of substantial articles on the variable of preventive behavior (including handwashing, social distancing, hand sanitizers, use of masks, and self-isolation) was 45%.

Obesity and Natural Spaces in Adults and Older People: A Systematic Review

2021 ◽  
pp. 1-14
Author(s):  
Andreia Teixeira ◽  
Ronaldo Gabriel ◽  
Luis Quaresma ◽  
Ana Alencoão ◽  
José Martinho ◽  
...  
Keyword(s):  
Systematic Review ◽  
Older People ◽  
Premature Mortality ◽  
Public Health Issue ◽  
Healthy Weight ◽  
Inclusion Criteria ◽  
Active Lifestyle ◽  
Promising Tool ◽  
Meta Analyses ◽  
The Relationship

Background: Obesity is an important public health issue that has increased globally in the last decade and continues to be one of the main causes of morbidity and premature mortality. An accumulating body of evidence suggests that contact with nature is a valuable resource for the promotion of a more active lifestyle and seems to have a central role in maintaining a healthy weight. The authors conducted a systematic review to summarize the findings of studies that investigated the relationship between natural spaces and obesity. Methods: Following Primary Reporting Items for Systematic Reviews and Meta-Analyses guidelines, a literature search was conducted using 11 databases for studies fully available in English and published between 2010 and 2020, with adults (18–64 y) and/or older people (≥65 y). Results: Fifty studies were found that met all the inclusion criteria. The majority (68%) of papers found that higher availability and less distance to green and blue spaces are associated with lower levels of adiposity. These associations were positive, even after adjusting for the demographic and socioeconomic factors. Conclusions: Exploring the characteristics of green and blue spaces seems to be a promising tool for urban planning and health policies. The authors suggest the implementation of exercise programs in contact with nature for future interventions.

A Systematic Review on Leadership Styles in Small and Medium-Sized Enterprises

2021 ◽  
Vol 6 (3) ◽  
pp. 158-166
Author(s):  
Sharon Esther Anak Donny Sita ◽  
Nor Ashikin Mohd Nor
Keyword(s):  
Systematic Review ◽  
Leadership Styles ◽  
Leadership Style ◽  
Small And Medium Enterprises ◽  
Jel Classification ◽  
Inclusion Criteria ◽  
Paper Review ◽  
Meta Analyses ◽  
Medium Enterprises ◽  
The Relationship

Objective - The purpose of this paper is to conduct a systematic review of the leadership style practiced by leaders in small and medium-sized enterprises. Methodology/Technique - Following the protocol guidance known as the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flowchart, a total of six articles were reviewed and analysed after meeting inclusion criteria and being deemed relevant to the goals of this paper. Findings - The results of the study suggested that the leadership styles of leaders in the context of small and medium enterprises are based on the following elements: 1) the background of an organization; 2) the characteristics of the leader; 3) the relationship between leader and followers; and 4) the position of the followers. Novelty - This paper contributes to the knowledge on leadership style in general, specifically in the context of small and medium-sized enterprises. Type of Paper - Review. Keywords: Leader; leadership style; PRISMA; small and medium-sized enterprises; systematic literature review. JEL Classification: L20, L29.

scholarly journals A systematic review of head-up tilt to improve consciousness in people with a prolonged disorder of consciousness

2020 ◽  
pp. 026921552094669
Author(s):  
Harriet Ng ◽  
Andrew King
Keyword(s):  
Systematic Review ◽  
Animal Studies ◽  
Case Series ◽  
Disorders Of Consciousness ◽  
Cochrane Library ◽  
Size Analysis ◽  
Inclusion Criteria ◽  
High Quality ◽  
Disorder Of Consciousness ◽  
Head Up Tilt

Objective: This systematic review analysed the evidence for the effect of head-up tilt (passive-standing) on consciousness among persons in prolonged disorders of consciousness. Data sources: Articles were identified through primary database searching (Medline, CINAHL, AMED, The Cochrane Library) and post-citation searching (Scopus). Review methods: This review followed the PRISMA statement. The search strategy was created to find articles that combined any conceivable passive standing device, any measure of consciousness and disorders of consciousness of any origin. Inclusion criteria were any papers that evaluated the use of head-up tilt in adults in defined disorders of consciousness. Exclusion criteria included active stand studies, paediatric studies and animal studies. The search was completed independently by two researchers. Data collection and risk of bias assessment was completed using the Downs and Black tool. Results: 6867 titles were retrieved (last search completed 21/6/20). Ten papers met the inclusion criteria: five examined the effects of a single head-up tilt treatment, and five the effects of head-up tilt regimes. Eighty-seven participants were randomised in three randomised controlled trials. In the remaining preliminary studies or case series, 233 participants were analysed. Quality was low, with only two high-quality studies available. Four studies were suitable for effect size analysis, where medium to large effect sizes were found. The two high-quality studies found head-up tilt had a large effect on consciousness. Conclusion: Overall there is some evidence that repeated passive standing on a tilt-table can improve consciousness, but the relevant studies provoke further questions.

scholarly journals A systematic review of mercury ototoxicity

2012 ◽  
Vol 28 (7) ◽  
pp. 1239-1248 ◽  
Author(s):  
Ana Cristina Hiromi Hoshino ◽  
Heloisa Pacheco Ferreira ◽  
Olaf Malm ◽  
Renata Mamede Carvallo ◽  
Volney Magalhães Câmara
Keyword(s):  
Systematic Review ◽  
Auditory System ◽  
Chemical Substance ◽  
Mercury Exposure ◽  
Central Auditory System ◽  
Inclusion Criteria ◽  
Irreversible Damage ◽  
The Relationship

Mercury is neurotoxic, and numerous studies have confirmed its ototoxic effect. However, the diagnosis and follow-up of mercury exposure require understanding the pathophysiology of the chemical substance. Based on a systematic literature review, this study aimed to demonstrate whether mercury is ototoxic and to analyze its mechanism of action on the peripheral and central auditory system, in order to contribute to the diagnosis and follow-up of exposure. This was a systematic review of studies published on the effects of mercury exposure on the auditory system. The full text of the studies and their methodological quality were analyzed. The review identified 108 studies published on the theme, of which 28 met the inclusion criteria. All the articles in the analysis showed that mercury exposure is ototoxic and produces peripheral and/or central damage. Acute and long-term exposure produces irreversible damage to the central auditory system. Biomarkers were unable to predict the relationship between degree of mercury poisoning and degree of lesion in the auditory system.

Sign in / Sign up

Export Citation Format

Share Document