scholarly journals Efeitos do treinamento pliométrico sobre a impulsão vertical em atletas de futebol de campo na faixa etária de 15 a 18 anos: uma revisão sistemática (Effects of plyometric training on vertical jump in soccer players between 15 and 18 years old: a systema)

Retos ◽  
2020 ◽  
pp. 981-987
Author(s):  
Renato Tavares Fonseca ◽  
Juliana Brandão Pinto de Castro ◽  
Andressa Oliveira Barros dos Santos ◽  
Gustavo Casimiro Lopes ◽  
Rodolfo De Alkmim Moreira Nunes ◽  
...  

 Resumo. Introdução: O treinamento pliométrico (TP) é normalmente utilizado visando a melhoria da impulsão vertical (IV) e o desempenho físico de jogadores de futebol nas categorias de base. Objetivo: Verificar os efeitos do TP sobre a IV em atletas de futebol de campo na faixa etária de 15 a 18 anos de idade. Métodos: Esta revisão sistemática seguiu as recomendações PRISMA. A pesquisa foi realizada nas bases científicas LILACS (via BVS), MEDLINE (via PubMed), Cochrane, SciELO, Scopus, ScienceDirect, Web of Science, CINAHL e SPORTDiscus. A qualidade metodológica dos artigos foi avaliada pela escala de Jadad. A análise do risco de viés foi efetuada através da ferramenta Cochrane. Resultados: Um total de 166 estudos foram encontrados, sendo selecionados 10 artigos, dos quais 7 utilizaram o TP como uma das intervenções e 3 abordaram algum tipo de TP associado com outros métodos. O TP, como única variável ou associado a outros métodos, produziu aumentos sobre a IV. Conclusão: O TP se apresentou como uma ferramenta efetiva para aumentar a IV em jogadores de futebol de campo na faixa etária de 15 a 18 anos, entretanto outros estudos envolvendo diferentes métodos de intervenção devem ser realizados. Resumen. Introducción: El entrenamiento pliométrico (EP) se usa normalmente para mejorar el empuje vertical (EV) y el rendimiento físico de los futbolistas en las categorías de base. Objetivo: Verificar los efectos del EP sobre el EV en jugadores de fútbol en el grupo de edad de 15 a 18 años. Métodos: Esta revisión sistemática siguió las recomendaciones PRISMA. La búsqueda se ejecutó en las bases de datos LILACS (a través de BVS), MEDLINE (a través de PubMed), Cochrane, SciELO, Scopus, ScienceDirect, Web of Science, CINAHL y SPORTDiscus. La calidad metodológica de los artículos se evaluó mediante la escala de Jadad. Para el análisis del riesgo de sesgo, se utilizó la herramienta Cochrane. Resultados: Se encontraron un total de 166 estudios, de los cuales se seleccionaron 10 artículos, 7 que utilizaron la EP como una de las intervenciones y 3 abordaron algún tipo de EP asociado a otros métodos. El EP, como la única variable o asociado con otros métodos, produjo incrementos sobre la EV. Conclusión: EP se presentó como una herramienta efectiva para aumentar el EV en jugadores de fútbol en el grupo de edad de 15 a 18 años, sin embargo, se deben realizar más estudios que involucren diferentes métodos de intervención.  Abstract. Introduction: Plyometric training (PT) is normally used to improve vertical jump (VJ) and physical performance of soccer players in the basic categories. Objective: To verify the effects of PT on VJ in soccer players between 15 and 18 years old. Methods: This systematic review followed the PRISMA recommendations. The search was carried out on the scientific bases of LILACS (via BVS), MEDLINE (via PubMed), Cochrane, SciELO, Scopus, ScienceDirect, Web of Science, CINAHL, and SPORTDiscus. The methodological quality of the articles was assessed using the Jadad scale. The risk of bias analysis was analyzed using the Cochrane tool. Results: From the 166 studies found, 10 articles were selected, of which 7 used PT as one of the interventions and 3 addressed some type of PT associated with other methods. TP as the only variable or associated with other methods produced increases over VJ. Conclusion: PT was presented as an effective tool to increase the VJ in soccer players between 15 and 18 years old, however, other studies involving different intervention methods should be performed.

Retos ◽  
2017 ◽  
pp. 208-213
Author(s):  
Alejandro Martínez-Rodríguez ◽  
Jaime Mira-Alcaraz ◽  
Bernardo J. Cuestas-Calero ◽  
José Antonio Pérez-Turpín ◽  
Pedro E. Alcaraz

El voleibol femenino se práctica en todo el mundo a nivel profesional y amateur. Los saltos verticales son una parte fundamental para el desarrollo de este deporte, por lo que el entrenamiento pliométrico puede ser eficaz para un aumento del rendimiento. El propósito de estudio fue describir cuáles han sido los métodos y programas de entrenamiento pliométrico en mujeres que practican voleibol, así como el resultado obtenido en función de estos. El proceso de búsqueda en las bases de datos se llevó a cabo desde Marzo hasta Junio de 2016. Las bases de datos consultadas fueron Pubmed, Web of Science, Cochrane y SPORTDiscus. La revisión sistemática fue realizada bajo las recomendaciones de la declaración PRISMA. La calidad metodológica de los estudios fue evaluada mediante la Escala PEDro. Como resultado, se obtuvieron un total de 205 artículos tras eliminar aquellos que estaban por duplicado. Finalmente 7 artículos fueron seleccionados. Los resultados principales fueron que aquellos estudios que utilizan deportistas amateurs obtienen mejores resultados que los realizados con deportistas profesionales cuando se realizan programas de entrenamiento pliométrico. También se indica que un período de entrenamiento pliométrico de baja intensidad puede prevenir una disminución en la altura del salto vertical; así como es necesario programar la pretemporada para evitar pérdida en la capacidad de salto. Todo ello parece indicar, como conclusión, que es necesario una disminución del volumen y un aumento de la intensidad en el entrenamiento pliométrico.Abstract. Female volleyball is practiced all over the world at a professional and amateur level. Vertical jumps are a fundamental part of the development of this sport. In this sense, plyometric training can be effective for increased performance. The purpose of the study was to describe the methods and programs of plyometric training in women volleyball players, as well as the results obtained from them. The following electronic databases were searched March to June 2016. Electronic databases consulted were Pubmed, Web of Science, Cochrane and SPORTDiscus. This systematic review was performed following PRISMA statement. PEDro scale was used to evaluated the methodological quality of the included studies. As total of 205 articles were obtained after remove duplicates. Finally 7 articles were selected. The main results were that those studies using amateur athletes obtain better results than those performed with professional athletes when performing plyometric training programs. It is also indicated that a period of low intensity plyometric training could prevent a decrease in vertical jump height; As well as it is necessary to schedule the preseason to avoid loss in the ability to jump. All this seems to indicate, in conclusion, that a decrease in volume and an increase in intensity in the training of plyometric training is necessary.


Sports ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 108 ◽  
Author(s):  
Athos Trecroci ◽  
Marco Duca ◽  
Damiano Formenti ◽  
Giampietro Alberti ◽  
F. Marcello Iaia ◽  
...  

This study aimed to investigate the effects of a five-week compound training (with strength and plyometric exercises performed on separate days) on sprint, change of direction, and vertical jump in young soccer players. Eighteen novices in strength and plyometric training were assigned to either a compound training (CMPT) or a control condition (CNT). Both groups trained three times per week. One session was dedicated to soccer-specific drills. The other two weekly sessions were dedicated to circuit-based training routines employing on one-day strength exercises and on the other day plyometric exercises in the CMPT group. At the same time, the CNT group performed two weekly soccer-specific training sessions. All players were tested by 15-m sprint, change-of-direction and acceleration test (CODAT), squat jump, and countermovement jump with arms swing tests. CMPT group improved CODAT, squat jump and countermovement jump to a higher extent compared to CNT group (large vs small or trivial effects, p < 0.05), while both groups had similar 15-m sprint performance (p > 0.05). These results support the use of compound training to improve change of direction and vertical jump performances in young novice soccer players, which are unfamiliar with structured and advanced strength and plyometric training.


2017 ◽  
Vol 1 (4) ◽  
pp. 199 ◽  
Author(s):  
Ester Aracil-Lavado ◽  
Carmina Wanden-Berghe ◽  
Javier Sanz-Valero

Objetivo: Revisar la literatura científica relacionada con la calidad de vida según el estado nutricional del paciente paliativo adulto.Método: Análisis crítico de los trabajos recuperados mediante revisión sistemática. Los datos se obtuvieron de la consulta directa y acceso, vía Internet, a las siguientes bases de datos bibliográficas del ámbito de las ciencias de la salud: MEDLINE (vía PubMed), The Cochrane Library, Scopus, Cumulative Index to Nursing and Allied Health Literature (CINHAL), Web of Science y la Literatura Latinoamericana y del Caribe en Ciencias de la Salud (LILACS). Se consideró adecuado el uso de los Descriptores “Quality of life”, “Nutritional Status” y “Palliative care”, utilizando los filtros: «Humans», «Adult» y «Comparative Study» o «Clinical Trial». Fecha de la búsqueda: noviembre de 2016.Resultados: Tras aplicar los criterios de inclusión y exclusión se aceptaron 4 estudios para su revisión y análisis crítico. Al evaluar la calidad de los artículos seleccionados para la revisión mediante el cuestionario CONSORT, las puntuaciones oscilaron entre 11 y 20 sobre una puntuación máxima de 25.Conclusiones: El seguimiento nutricional de los enfermos estaba relacionado directamente con la mejora del estado nutricional, y se correspondía con el incremento de la calidad de vida. Sería deseable utilizar cuestionarios específicos y validados para evaluar la calidad de vida según el estado nutricional que permitirán minimizar cualquier tipo de subjetividad del paciente. Serían necesarios futuros estudios, con una adecuada población, que aclaren la relación directa entre el estado nutricional y la calidad de vida en los enfermos paliativos.


2017 ◽  
Vol 27 (1) ◽  
pp. 99 ◽  
Author(s):  
Ana Paula Kasten ◽  
Bruna Nichele da Rosa ◽  
Emanuelle Francine Detogni Schmit ◽  
Matias Noll ◽  
Claudia Tarragô Candotti

Objective: To estimate the prevalence of spine postural deviations in Brazilian schoolchildren. Method: Searches were conducted in databases EMBASE, LILACS, PubMed, SCOPUS, SciELO, Science Direct, and Web of Science, as well as manual searches to identify studies that evaluated the prevalence of spine postural deviations in Brazilian schoolchildren. Two independent reviewers realized the study selection, evaluated the methodological quality and the risk of bias and extracted data. The homogeneity between the studies was evaluated and the quality of evidence level using the GRADE system. Results: 29 studies were included, of which extracted the frequency of positive events to changes in cervical, thoracic and lumbar spine, as well as the frequency of scoliosis between schoolchildren. Even performing the meta-analysis separated by subgroups according to the spine region, the heterogeneity level it was up to 90%, it is not possible to perform the meta-analysis to estimate the prevalence of spine postural deviations in Brazilian schoolchildren. Conclusion: There is low strength of evidence to establish a consensus about the values of the prevalence of spine postural deviations in Brazilian schoolchildren.


2019 ◽  
Vol 24 (1) ◽  
pp. 189-202
Author(s):  
Abigail Gómez-Morales ◽  
Jessica Maria Arouca de Miranda ◽  
Aline Maino Pergola-Marconato ◽  
Thalyta Cristina Mansano-Schlosser ◽  
Felismina Rosa Parreira Mendes ◽  
...  

Resumen El objetivo es identificar qué actividades o intervenciones ocasionan cambios en la calidad de vida de los ancianos. Revisión sistemática de la literatura en las bases de datos: Scopus, ISI Web of Science, Scielo, Lilacs, BDenf y PubMed. Cómo término principal Medical Subject Heading Terms (Mesh) se seleccionó “quality of life” en combianción con los términos de mayor interés:“elderly, motor activity, education“. Búsqueda realizada entre Julio y Agosto de 2015 en la cual se incluyen trabajos originales publicados entre 2010 y 2015 en ingles, portugués y español. Además se siguió la estragégia Cocharne para la elaboración de la revisión. Se estudiaron 27 artículos que comparaban la calidad de vida del anciano antes y después de realizar una intervención de tipo física, educativa o mixta. Cómo principal resultado se obtiene que la salud general, fución social, rol físico y satisfacción con la vida són los dominios más influenciados, así como las actividades físicas en grupo són las más realizadas. Se concluye que al realizar actividades de cualquier índole, preferiblemente adaptadas, se producen cambios de forma notable en la calidad de vida del anciano a nivel general, observándose especialmente una mejoría en aspectos funcionales, mentales y sociales.


Retos ◽  
2018 ◽  
pp. 247-251
Author(s):  
Jose Antonio Rodríguez-Gandullo ◽  
Francisco Álvarez-Barbosa

El objetivo del estudio fue investigar los efectos de un entrenamiento de fuerza más una suplementación adicional sobre deportistas adultos no profesionales y vegetarianos. Una revisión sistemática de las bases de datos MEDLINE (PubMed), Scopus, SportDiscus y WOS (Web of Science) fue realizada siguiendo el modelo PICO, utilizando términos que representasen a personas vegetarianas de entre 18 y 64 años que hubiesen realizado una intervención basada en un entrenamiento de fuerza más suplementación. Siguiendo el procedimiento PRISMA, de los 62 estudios encontrados tan solo 3 cumplieron todos los criterios por lo que fueron analizados en su totalidad para poder ser incluidos en la revisión. La calidad metodológica de los estudios se evaluó mediante la escala PEDro. El estudio de Shomrat et al. (2000) la suplementación con creatina provocó un incremento de la masa corporal y potencia media. El estudio de Burke et al. (2003) obtuvo con la suplementación de creatina incrementos en la fosfocreatina (PCr), creatina total (TCr), fuerza, fibras musculares de tipo II y tejido magro, siendo estos cambios más significativos en las personas vegetarianas. Por último, en el estudio de Burke et al. (2008), el factor de crecimiento insulínico de tipo 1 (IGF-1) se incrementó en un 67%, con mayor acumulación en el grupo que fue suplementado con creatina. A raíz de estos resultados se puede concluir que la suplementación con creatina puede provocar efectos positivos en el rendimiento de los deportistas vegetarianos, ya que puede cubrir ciertas carencias derivadas de la dieta vegetariana.Abstract: The aim of the study was to investigate the effects of strength training plus additional supplementation on non-professional adult athletes who are vegetarian. A systematic review of MEDLINE (PubMed), Scopus, SportDiscus, and WOS (Web of Science) databases was performed following the PICO model, using terms related to vegetarians aged between 18 and 64 years who realized an intervention based on strength training and supplementation. Following the PRISMA statement, of the 62 studies found only 3 met all the inclusion criteria and were analyzed entirely to be included in the review. The methodological quality of the studies was performed using the PEDro scale. The study of Shomrat et al. (2000) with creatine supplementation resulted in an increase in body mass and power. The study of Burke et al. (2003), based on creatine supplementation, obtained an increase of phosphocreatine (PCr), total creatine (TCr), strength, type II muscle fibers, and lean tissue. These changes were significant in vegetarians. Finally, in a study of Burke et al. (2008), insulin-like growth factor-1 (IGF-1) increased by 67%, with higher accumulation in the group that was supplemented with creatine. As a consequence of these results we can conclude that creatine supplementation could have positive effects on the performance of vegetarians due to the fact that it could cover certain shortcomings derived from the vegetarian diet.


2014 ◽  
Vol 48 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Shweta Shenoy ◽  
Amrinder Singh ◽  
Kartik Kulkarni ◽  
Jaspal Sandhu

ABSTRACT The purpose of this study was to compare the effects of combined strength and plyometric training with soccer training alone on strength and power-related measurements in professional soccer players. Subjects were randomly divided into two groups: group EG (n = 14) performed heavy resistance and plyometric training thrice a week during 6 weeks training period in addition to 6-8 soccer sessions per week; group CG (n = 14) performed 6-8 soccer sessions a week. EG significantly increased (p < 0.05) ball shooting speed and agility but showed no changes in body mass. Within-subject improvement was significantly higher (p < 0.01) in the EG compared with the CG for vertical jump height, 10 and 30 m sprint times, distances covered in the Yo-Yo intermittent recovery test. Plyometric can be concurrently performed with high load muscular strength training to enhance soccer players’ explosive performances. How to cite this article Singh A, Kulkarni K, Shenoy S, Sandhu J. Effect of 6 Weeks of Preseason Concurrent Muscular Strength and Plyometric Training in Professional Soccer Players. J Postgrad Med Edu Res 2014;48(1):27-32.


2021 ◽  
Vol 21 (2) ◽  
pp. 162-167
Author(s):  
Mohammed A. Merzah ◽  
Shewaye Natae

Hypertension is a preventable risk factor of cardiovascular diseases. It is considered a major cause of CVD-morbidity and mortality worldwide. Some risk factors and prevention strategies related to hypertension were studied intensively, however, with growing the burden of this disorder and genetic has become the dominant field of treating diseases, still, specific genes involved in increasing blood pressure remain to be identified. This meta-analysis was conducted to assess the relationship of COMT Val158/Met variation to high systolic and diastolic blood pressure. PubMed and Web of Science (WOS) were intensively searched for the genetic association on the link of COMT Val158/Met to hypertension. The search was done up to October 15th 2020 and updated on November 22nd 2020. Two investigators were independently extracting data and evaluating the risk of bias using the Cochrane risk of bias tool. Q-genie tool was used to assess the quality of all included articles. Met-dominant model (Met/Met + Val/Met vs Val/Val) showed a significant association to systolic and diastolic blood pressure with a pooled standardized mean difference of -0.215 and 95%CI [-0.399 to -0.0300] and -0.205, 95%CI [-0.390 to -0.0197], respectively. Met allele was significantly related to high systolic and diastolic blood pressure. However, high-quality, case-control studies are lacking.


2021 ◽  
pp. 135910452110447
Author(s):  
Denisa A Clisu ◽  
Imogen Layther ◽  
Deborah Dover ◽  
Russell M Viner ◽  
Tina Read ◽  
...  

Background: Many children and young people (CYP) presenting with mental health crises are admitted to hospital due to concerns around illness severity and risk. Whilst inpatient admissions have an important role for such children, there are a number of burdens associated with them, and safe avoidance of admissions is favourable. We systematically reviewed the literature for studies of interventions reported as alternatives to a hospital admission in CYP presenting with mental health crises, in any inpatient setting. Methods: Three databases (PsychInfo, PubMed and Web of Science) were searched for peer-reviewed papers in October 2020, with an updated search in May 2021. Results: We identified 19 papers of interventions delivered in the emergency department, the home, outside of home but outside of clinics and in hospital clinics. The quality of most included studies was low, with less than half being randomised controlled trials and only half of these at low risk of bias. The best quality studies and greatest evidence for efficacy came from in-home interventions, in particular multisystemic therapy, which improved psychological outcomes, and though a large number of CYP still ended up being admitted, there appeared to be decreased length of stay. Conclusions: Overall, we could not recommend a particular intervention as an alternative to inpatient admission; however, our review describes benefits across a range of types of interventions that might be considered in multi-modal treatments. We also provide recommendations for future research, in particular the evaluation of new interventions as they emerge.


2020 ◽  
Vol 15 (1) ◽  
pp. 3-17 ◽  
Author(s):  
Peter A. van de Hoef ◽  
Jur J. Brauers ◽  
Maarten van Smeden ◽  
Frank J.G. Backx ◽  
Michel S. Brink

Background: Plyometric training is a specific form of strength training that is used to improve the physical performance of athletes. An overview of the effects of plyometric training on soccer-specific outcomes in adult male soccer players is not available yet. Purpose: To systematically review and meta-analyze the effects of plyometric training on soccer-specific outcome measures in adult male soccer players and to identify which programs are most effective. Methods: PubMed, Embase/Medline, Cochrane, PEDro, and Scopus were searched. Extensive quality and risk of bias assessments were performed using the Cochrane ROBINS 2.0 for randomized trials. A random effects meta-analysis was performed using Cochrane Review Manager 5.3. Results: Seventeen randomized trials were included in the meta-analysis. The impact of plyometric training on strength, jump height, sprint speed, agility, and endurance was assessed. Only jump height, 20-m sprint speed, and endurance were significantly improved by plyometric training in soccer players. Results of the risk of bias assessment of the included studies resulted in overall scores of some concerns for risk of bias and high risk of bias. Conclusion: This review and meta-analysis showed that plyometric training improved jump height, 20-m sprint speed, and endurance, but not strength, sprint speed over other distances, or agility in male adult soccer players. However, the low quality of the included studies and substantial heterogeneity means that results need to be interpreted with caution. Future high-quality research should indicate whether or not plyometric training can be used to improve soccer-specific outcomes and thereby enhance performance.


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