scholarly journals Injury rate in professional football: A systematic review

2021 ◽  
Vol 10 (2) ◽  
pp. 52-63
Author(s):  
Mirza Ibrahimović ◽  
Emir Mustafović ◽  
Denis Causevic ◽  
Haris Alić ◽  
Eldin Jelešković ◽  
...  
Keyword(s):  
Systematic Review ◽  
Web Of Science ◽  
Injury Rate ◽  
Google Scholar ◽  
Football Players ◽  
Professional Football ◽  
Exclusion Criteria ◽  
National Team ◽  
Frequency Rate ◽  
Injury Frequency

The goal of this paper is to determine the injury frequency rate in professional football players in leagues and national competitions by analyzing existing papers. We have chosen 21 articles according to the PRISMA method from the Google Scholar, ResearchGate Scopus, and Web of Science databases that fit both inclusion and exclusion criteria. We have discussed the following four segments based on the content of the selected papers: 1) An analysis of the injury frequency rate on the level of national teams, 2) An analysis of the injury frequency rate in club leagues, 3) A comparison of the injury frequency rate in matches and in practice, and 4) An analysis of the injury frequency rate in male versus female football players. The paper concludes that major national team tournaments have the highest injury frequency rate and that the probability of injury is four to five times higher in a match than in practice. The injury frequency rate in female players is lower than in male players regardless of the type of competition (national teams or leagues).

scholarly journals Estructura temporal, movimientos en pista y acciones de juego en pádel: revisión sistemática (Temporal structure, court movements and game actions in padel: a systematic review)

Retos ◽  
2017 ◽  
pp. 308-312
Author(s):  
Bernardino Javier Sánchez-Alcaraz Martínez ◽  
Javier Courel-Ibáñez ◽  
Jerónimo Cañas
Keyword(s):  
Systematic Review ◽  
Web Of Science ◽  
Temporal Structure ◽  
Google Scholar ◽  
Moderate Intensity ◽  
Exclusion Criteria ◽  
Screening Process ◽  
Revisión Sistemática ◽  
Gender And Age ◽  
Review Current

El objetivo de este estudio fue realizar una revisión sistemática sobre los requerimientos de la competición en pádel para identificar las variables más estudiadas y sus principales resultados. Se realizó una búsqueda electrónica en cuatro bases de datos: Scopus, Web of Science, SportDiscus y Google Scholar. Se utilizaron principios de revisión sistemática para identificar y seleccionar posibles estudios elegibles de acuerdo a los criterios de inclusión y exclusión definidos. De un total de 124 artículos identificados en la búsqueda inicial, se incluyeron 17 después del proceso de selección. Los artículos se clasificaron en función de la temática de estudio (estructura temporal, acciones de juego y movimientos en pista), año, muestra y principales resultados. En general, los resultados indican que el pádel es un deporte de carácter intermitente, con esfuerzos interválicos, provocados por acciones repetitivas de corta duración y moderada intensidad. Se han encontrado importantes diferencias en aspectos temporales y del estilo de juego en función del género y la edad de los jugadores. Sin embargo, la mayoría de los trabajos revisados analizan las relaciones entre una serie de variables o comportamientos asilados durante la competición, encontrando carencias de investigaciones holísticas, dinámicas y complejas de acuerdo a los métodos y técnicas actuales utilizadas en el estudio del análisis de la competición. En conclusión, los resultados expuestos contribuyen al desarrollo del conocimiento científico en pádel, permitiendo el diseño de futuros estudios más complejos e intervenciones específicas que respondan a las necesidades de la competición en este deporte. Abstract. We aimed to review current literature on padel competition requirements to identify the most common research topics and main findings. Literature was sought via an electronic search of four databases: Scopus, Web of Science, SportDiscuss and Google Scholar. Systematic review principles were employed to identify and select potential eligible studies according to defined inclusion and exclusion criteria. In total, 124 studies were identified in the original database search, which were reduced to 17 after screening process. Then, articles were classified based on topic (temporal structure, game actions, and movements), year, sample, and main results. Overall, results allow defining padel as an intermittent sport including interval efforts provoked by repetitive actions of short duration and moderate intensity. Important differences in temporal structure and game styles were observed regarding players’ gender and age. However, the majority of the reviewed studies reported associations between isolated variables and behaviors during competition, detecting a deficiency of holistic, dynamic and complex research in line with current methods and techniques employed in match analysis. To conclude, the presented findings add relevant insights on the scientific understanding of padel, contributing to the design of future studies focused on more complex and specific interventions in accordance with competition requirements.

scholarly journals RETURN TO TRAINING AND PROFESSIONAL FOOTBALL COMPETITION AFTER THE SANITARY ALERT OF COVID-19 WITH EMPHASIS IN THE ANALYSIS, MANAGEMENT AND CONTROL CONTROL OF TRAINING LOADS.

2020 ◽  
Author(s):  
David Agusti ◽  
Jorge Alvarez
Keyword(s):  
Systematic Review ◽  
Scientific Literature ◽  
Injury Rate ◽  
Football Players ◽  
Group Training ◽  
Professional Football ◽  
The World ◽  
Main Factors ◽  
And Control ◽  
Individual Training

In the year 2020, the world is facing a global emergency called COVID-19, causing sports competitions to be postponed and/or suspended, resulting in the modification of sports schedules. This has caused coaches to have to prepare individual training plans or group training at a distance in decontextualized environments and with low specificity regarding the nature of the sport.In order to analyse the main factors to be taken into account in planning the training after competition in professional football players, a systematic review of scientific literature addressing the selected problem was carried out. In the first search, 155 articles were obtained, identifying a total of 37 duplicate articles, therefore, according to the established criteria, a total of 118 articles were analysed. Of these, 30 were chosen for the investigation.As conclusions of the study, we highlight the importance of performing the correct management and distribution of training loads after training with the aim of reducing the injury rate of athletes. It would be useful to follow the different practical proposals / recommendations that we present in the research for the period after training.

Adverse Effects of Natural Products: A Brief Pre-Systematic Review

2020 ◽  
Vol 01 ◽  
Author(s):  
Carla Pires ◽  
Ana Fernandes
Keyword(s):  
Systematic Review ◽  
Adverse Event ◽  
Natural Products ◽  
Adverse Events ◽  
In Vitro Study ◽  
Google Scholar ◽  
Inclusion Criteria ◽  
Exclusion Criteria ◽  
Meta Analyses

Background: Natural products are commonly used for treating health problems. These products may be associated with adverse events, which are defined as "noxious and unintended response to a medicinal product" by the European Medicine Agency. Objectives: To identify studies describing at least one adverse event (or with potential to promote an adverse event) related to the use of natural products, as well as to describe the involved product(s) and adverse event(s). Methods: A pre-systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses criteria. Keywords: "natural product(s)" and ["adverse drug reaction(s)" or "adverse effect(s)"]. Screened databases: PubMed, SciELO, DOAJ and Google Scholar. Inclusion criteria: papers describing at least one adverse event associated with the use of natural products and published between 2017 and 2019. Exclusion criteria: Repeated studies, reviews and papers written in other languages than English, Portuguese, French or Spanish. Results: 104 studies were identified (20 PubMed; 0 SciELO; 2 DOAJ; 82 Google Scholar), but only 10 were selected (4 PubMed and 6 Google Scholar): 1 in-vitro study; 2 non-clinical studies, 1 study reporting in-vitro and clinical data and 5 studies were cases reports. Globally, 997 reports of adverse drug reactions with natural products were identified, mainly non-severe cases. Conclusion: Since a limited number of studies was found, we conclude that adverse events due to natural products may be underreported, or natural products may have a good safety profile. This review contributes for assuring the safety of natural products consumers, by evaluating the knowledge/information on the potential adverse events and interactions of these products.

scholarly journals High rate of second ACL injury following ACL reconstruction in male professional footballers: an updated longitudinal analysis from 118 players in the UEFA Elite Club Injury Study

2021 ◽  
pp. bjsports-2020-103555
Author(s):  
Francesco Della Villa ◽  
Martin Hägglund ◽  
Stefano Della Villa ◽  
Jan Ekstrand ◽  
Markus Waldén
Keyword(s):  
Acl Reconstruction ◽  
Cox Regression ◽  
Injury Rate ◽  
Acl Injury ◽  
High Rate ◽  
Football Players ◽  
Professional Football ◽  
Cox Regression Analysis ◽  
Career Length ◽  
Increased Risk

BackgroundStudies on subsequent anterior cruciate ligament (ACL) ruptures and career length in male professional football players after ACL reconstruction (ACLR) are scarce.AimTo investigate the second ACL injury rate, potential predictors of second ACL injury and the career length after ACLR.Study designProspective cohort study.SettingMen’s professional football.Methods118 players with index ACL injury were tracked longitudinally for subsequent ACL injury and career length over 16.9 years. Multivariable Cox regression analysis with HR was carried out to study potential predictors for subsequent ACL injury.ResultsMedian follow-up was 4.3 (IQR 4.6) years after ACLR. The second ACL injury rate after return to training (RTT) was 17.8% (n=21), with 9.3% (n=11) to the ipsilateral and 8.5% (n=10) to the contralateral knee. Significant predictors for second ACL injury were a non-contact index ACL injury (HR 7.16, 95% CI 1.63 to 31.22) and an isolated index ACL injury (HR 2.73, 95% CI 1.06 to 7.07). In total, 11 of 26 players (42%) with a non-contact isolated index ACL injury suffered a second ACL injury. RTT time was not an independent predictor of second ACL injury, even though there was a tendency for a risk reduction with longer time to RTT. Median career length after ACLR was 4.1 (IQR 4.0) years and 60% of players were still playing at preinjury level 5 years after ACLR.ConclusionsAlmost one out of five top-level professional male football players sustained a second ACL injury following ACLR and return to football, with a considerably increased risk for players with a non-contact or isolated index injury.

scholarly journals Prevalence of Burnout Syndrome for Public Schoolteachers in the Brazilian Context: A Systematic Review

2021 ◽  
Vol 18 (4) ◽  
pp. 1606
Author(s):  
Natalia P. Montoya ◽  
Lia C. O. B. Glaz ◽  
Lucas A. Pereira ◽  
Irineu Loturco
Keyword(s):  
Systematic Review ◽  
Public Schools ◽  
Emotional Exhaustion ◽  
Methodological Quality ◽  
Literature Search ◽  
Web Of Science ◽  
Teaching Quality ◽  
Burnout Syndrome ◽  
Database Searching ◽  
Exclusion Criteria

The aim of this systematic review was to examine the prevalence of burnout-related symptoms in Brazilian schoolteachers who work in public schools. The literature search was conducted using the following databases: PubMed-MEDLINE, Scopus, and Web of Science. Peer-reviewed studies published in English, Spanish, or Portuguese were considered for inclusion. A total of 2106 records were identified through database searching and 7 additional studies were identified through other sources. Based on the inclusion and exclusion criteria, 19 studies were included in the systematic review. Burnout syndrome prevalence was assessed through seven distinct questionnaires. Overall, the majority of the studies presented high methodological quality. Brazilian schoolteachers exhibited high levels of emotional exhaustion (21–69%), high or moderate degrees of depersonalization (8–32%), and high levels of personal realization and enthusiasm toward the job (30–90%). From these data, it is possible to infer that Brazilian schoolteachers are, in general, affected by burnout syndrome. However, and, surprisingly, they seem to be motivated and idealistic, as demonstrated by their high levels of personal realization and enthusiasm toward the job (30–90%). This likely favors the implementation of programs designed to avoid or reduce burnout, deal with stress, and enhance teaching quality.

Astrocyte Biomarkers in Alzheimer Disease: A Systematic Review and Meta-analysis

Neurology ◽  
2021 ◽  
pp. 10.1212/WNL.0000000000012109
Author(s):  
Bruna Bellaver ◽  
João Pedro Ferrari-Souza ◽  
Lucas Uglione da Ros ◽  
Stephen F Carter ◽  
Elena Rodriguez-Vieitez ◽  
...  
Keyword(s):  
Systematic Review ◽  
Web Of Science ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Significant Progress ◽  
Exclusion Criteria ◽  
Mao B ◽  
Positron Emission ◽  
Registration Number ◽  
Mean Differences

Objective:To perform a systematic review and meta-analysis to determine whether fluid and imaging astrocyte biomarkers are altered in Alzheimer's disease (AD).Methods:PubMed and Web of Science databases were searched for articles reporting fluid or imaging astrocyte biomarkers in AD. Pooled effect sizes were determined with mean differences (SMD) using the Hedge’s G method with random-effects to determine biomarker performance. Adapted questions from QUADAS-2 were applied for quality assessment. A protocol for this study has been previously registered in PROSPERO (registration number: CRD42020192304).Results:The initial search identified 1,425 articles. After exclusion criteria were applied, 33 articles (a total of 3,204 individuals) measuring levels of GFAP, S100B, YKL-40 and AQP4 in the blood and cerebrospinal fluid (CSF), as well as MAO-B, indexed by positron emission tomography 11C-deuterium-L-deprenyl ([11C]-DED), were included. GFAP (SMD = 0.94; 95% CI = 0.71-1.18) and YKL-40 (SMD = 0.76; CI 95% = 0.63-0.89) levels in the CSF, S100B levels in the blood (SMD = 2.91; CI 95% = 1.01-4.8) were found significantly increased in AD patients.Conclusions:Despite significant progress, applications of astrocyte biomarkers in AD remain in their early days. The meta-analysis demonstrated that astrocyte biomarkers are consistently altered in AD and supports further investigation for their inclusion in the AD clinical research framework for observational and interventional studies.

scholarly journals Extraction of primary canines for interceptive orthodontic treatment of palatally displaced permanent canines: A systematic review

2017 ◽  
Vol 87 (6) ◽  
pp. 878-885 ◽  
Author(s):  
Naif N. Almasoud
Keyword(s):  
Systematic Review ◽  
Clinical Trials ◽  
Randomized Clinical Trials ◽  
Web Of Science ◽  
Quality Criteria ◽  
Control Groups ◽  
Exclusion Criteria ◽  
The University ◽  
Study Designs ◽  
Primary Canine

ABSTRACT Objective: To determine whether the successful management of palatally displaced permanent canines (PDCs) can be achieved by the interceptive extraction of primary maxillary canines. Materials and Methods: Digital databases (Medline, Scopus, Web of Science, and Cochrane) were searched to retrieve articles published from 1952 to April 2016. The university librarian developed search strategies for each database. Two calibrated reviewers independently reviewed potentially related titles and abstracts. Papers meeting the inclusion and exclusion criteria were read in full. The selected articles were evaluated and scored according to methodological quality criteria. Results: Four randomized clinical trials (RCTs) were included in the systematic review. Compared with two older studies, two more recent RCTs were found to have better study designs, were better conducted, and involved better reporting of the results. The included studies compared intervention groups (children with PDCs undergoing extraction of primary canines) with controls (subjects with PDCs but no primary canine extractions). In three of the four studies, the interceptive extraction of primary canines facilitated eruption of PDCs in more than 65% of cases. Overall, the intervention groups had a markedly higher incidence of successful eruption of PDCs (50%–69%) compared with the control groups (36%–42%). Conclusions: Based on the available evidence, it is reasonable to conclude that eruption of PDCs can be facilitated by extraction of primary canines. However, further high-quality, randomized clinical trials are warranted in other population groups. It is hoped that this study will help orthodontists make evidence-based decisions about clinically managing PDCs.

scholarly journals Ethnic Variations Are Still Underrepresented In Neuropharmacogenomics: A Systematic Review

2021 ◽  
Vol 30 (1) ◽  
pp. 91-103
Author(s):  
Fabricio González-Andrade ◽  
Stephanie Michelena ◽  
Ronny Pibaque ◽  
Gabriela Aguinaga-Romero
Keyword(s):  
Systematic Review ◽  
Web Of Science ◽  
Google Scholar ◽  
Palabras Clave ◽  
Salud Mental ◽  
Ethnic Variations ◽  
Trastorno Bipolar

Contexto: Existe una cantidad creciente de evidencia que sugiere que la respuesta a ciertos medicamentos puede estar relacionada con la estructura genética de cada individuo. El advenimiento de la genómica rápida y la genética más precisa solo han impulsado la investigación para comprender ese vínculo. Esto ha abierto apasionantes campos de investigación, a saber, la farmacogenética y la farmacogenómica. Los estudios sobre la respuesta al tratamiento a las afecciones de salud mental que utilizan nuevas herramientas han llamado mucho la atención, especialmente para afecciones como el trastorno bipolar (BP), la esquizofrenia (SP), la manía y la hipomanía, en las que la respuesta al tratamiento puede variar significativamente entre los pacientes. Una forma de asociar la genética del paciente y su respuesta al tratamiento es recordando la etnia del paciente. Se han encontrado resultados interesantes para diferentes grupos étnicos donde las poblaciones asiáticas y caucásicas son las más estudiadas. Sin embargo, hay una profunda falta de estudios sobre poblaciones africanas y latinoamericanas. El propósito de este artículo es mostrar algunos estudios de farmacogenética / genómica de enfermedades de salud mental y contrastar la gran diferencia entre los estudios poblacionales al respecto. Métodos: Siguiendo una metodología PRISMA, se realizó una búsqueda no sistemática en PubMed, Medline, Web of Science, Scopus y Google Scholar tomando en consideración cualquier tipo de estudios publicados en ellos en cualquier momento hasta el 30 de noviembre de 2019. La búsqueda contenía los siguientes términos: farmacogenética, farmacogenómica, etnia y grupos étnicos combinados con su tratamiento respectivo (antidepresivos, litio, anticonvulsivantes y varios tipos de antipsicóticos) y la condición (trastorno bipolar (BP), esquizofrenia (SP), manía, hipomanía y trastornos depresivos mayores (MDD) En cada base de datos, una entrada contenía términos como: farmacogenética O farmacogenómica Y etnia O “grupos étnicos” Y “trastornos bipolares” Y “litio.” Resultados: Solo encontramos 29 estudios sobre estudios de farmacogenética/ farmacogenómica y etnicidad/grupos étnicos, 14 relacionados con la esquizofrenia, 7 relacionados con la manía y el trastorno depresivo mayor y 8 con los trastornos bipolares. La farmacogenética y la farmacogenómica se han utilizado ampliamente para estudiar el vínculo entre la genética de un individuo y los efectos secundarios del tratamiento. Aunque casi veinte genes se asociaron con la respuesta al tratamiento, pequeños cambios, como un polimorfismo de un solo nucleótido, también pueden influir en la respuesta al tratamiento. La clozapina fue el fármaco más utilizado para explorar su farmacogenética/genómica. Más de la mitad de los estudios encontrados se realizaron en europeos y más de las tres cuartas partes en asiáticos. Conclusión: Encontramos solo cinco estudios sobre farmacogenética de la manía, así como del trastorno depresivo mayor y la etnia que involucra los genes SLC6A4, ABCB1, NTRK2, SLC6A2, BDNF, PDE11A y PDE9A, genes relacionados con el uso de fluoxetina y desipramina. Algunos estudios sugirieron que la precisión del uso de Polimorfismo de Nucléotido Único (SNP) como marcadores farmacogenómicos del resultado del tratamiento, si se usa adecuadamente, podría representar un avance significativo en la medicina personalizada, ya que dos SNP que se encuentran en el mismo gen pueden producir resultados de tratamiento diferentes. Un resultado esperado fue que la gran cantidad de información encontrada reflejaba principalmente estudios realizados en Europa y Asia. Sin embargo, se puede observar que los estudios en etnias latinas o hispanas son muy escasos, lo que constituye un sesgo importante a la hora de elegir el fármaco adecuado en el tratamiento de las enfermedades neuropsiquiátricas, especialmente para entender las respuestas farmacológicas étnicas y aprovechar esta creciente y emocionante campo. Palabras clave: desórdenes psiquiátricos, Esquizofrenia, farmacogenómica, fármacos antipsicóticos, neurología, revisión no sistemática, trastorno bipolar, variaciones étnicas

scholarly journals Cytomegalovirus seroprevalence among blood donors: a systematic review and meta-analysis

2021 ◽  
Vol 49 (8) ◽  
pp. 030006052110346
Author(s):  
Tiruneh Adane ◽  
Solomon Getawa
Keyword(s):  
Systematic Review ◽  
Confidence Interval ◽  
Blood Donors ◽  
Web Of Science ◽  
Meta Analysis ◽  
Google Scholar ◽  
Cochrane Library ◽  
Blood Products ◽  
Specific Antibodies

Background Screening for cytomegalovirus (CMV)-specific antibodies is not routine in some settings. Thus, transfusion of blood products poses risks for susceptible individuals. Objectives To investigate the global pooled CMV seroprevalence among volunteer blood donors. Methods This systematic review and meta-analysis was performed according to PRISMA guidelines. The databases searched included Embase, Google Scholar, Medline, PubMed, Web of Science, and Cochrane Library. Data were extracted independently and analyzed using STATA version 11. Results The global seroprevalence of CMV IgG, CMV IgM, and both CMV IgM and IgG was 83.16% (95% confidence interval [CI]: 78.55–87.77%, I2 = 99.5%), 13.77% (95% CI: 11.59–15.95%, I2 = 98.8%), and 23.78% (95% CI: 10.50–37.06%, I2 = 98.7), respectively. Conclusion The global seroprevalence of CMV was high among blood donors. Therefore, regular CMV screening should be conducted to identify CMV-seronegative blood donors.

scholarly journals The relevance applying in the adhesive protocol in devital teeth

2021 ◽  
Vol 18 (4) ◽  
pp. 26-31
Author(s):  
Z. S. Khabadze ◽  
Yu. A. Generalova ◽  
V. S. Shubaeva ◽  
M. G. Sheroziia ◽  
A. A. Nedashkovsky ◽  
...  
Keyword(s):  
Systematic Review ◽  
Matrix Metalloproteinases ◽  
The State ◽  
Google Scholar ◽  
Review Of The Literature ◽  
Exclusion Criteria ◽  
Clinical Cases

Aim. To determine the relevance of the application of the chlorhexidine adhesive Protocol in devital teeth.Materials and methods. A systematic review of the literature in the electronic databases Google Scholar and Pubmed was conducted. Articles related to research on the activity of matrix metalloproteinases in vital and devital teeth, as well as research on the effectiveness of the chlorhexidine Protocol, are considered and included.Results. 60 articles were reviewed during the review. After making the selection based on the exclusion criteria, the number of included studies was 36.Conclusions. According to the studied publications, it was found that MMP 2 and MMP 9 are contained not only in vital, but also in devital teeth. The use of a chlorhexidine adhesive Protocol is relevant in both clinical cases but depending on the type of MMP and the state of the pulp, the concentration of chlorhexidine is selected.

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