<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1659-4436</journal-id>
<journal-title><![CDATA[Pensar en Movimiento: Revista de ciencias del ejercicio y la salud]]></journal-title>
<abbrev-journal-title><![CDATA[Pensar en Movimiento]]></abbrev-journal-title>
<issn>1659-4436</issn>
<publisher>
<publisher-name><![CDATA[Escuela de Educación Física de la Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1659-44362020000200004</article-id>
<article-id pub-id-type="doi">10.15517/pensarmov.v18i2.40315</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto agudo de los entrenamientos de fuerza, velocidad, pliometría y velocidad contra resistencia en la carrera de velocidad]]></article-title>
<article-title xml:lang="en"><![CDATA[Acute effect of strength, speed, plyometric, and resisted sprint trainings on sprinting]]></article-title>
<article-title xml:lang="pt"><![CDATA[Efeito agudo dos treinamentos de força, velocidade, pliometria e velocidade contrarresistência na corrida de velocidade]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barquero-Jiménez]]></surname>
<given-names><![CDATA[José Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salazar-Rojas]]></surname>
<given-names><![CDATA[Walter]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Costa Rica Escuela de Educación Física y Deportes ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>18</volume>
<numero>2</numero>
<fpage>4</fpage>
<lpage>24</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1659-44362020000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1659-44362020000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1659-44362020000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La velocidad juega un papel fundamental en el rendimiento deportivo, tanto en deportes individuales como colectivos. Los objetivos de este estudio son: a) determinar el efecto agudo de los tipos de entrenamiento de fuerza, velocidad, pliometría y velocidad contra resistencia en la carrera de velocidad y sus fases y b) realizar el análisis del efecto agudo de estos tipos de entrenamiento de manera individual. Once velocistas (edad promedio de 21.8 años ± 3.04, talla de 1.764 m ± 0.062 y peso de 69.645 kg ± 4.946), con experiencia como velocistas realizaron cinco tratamientos agudos (F, V, P, VR y control), para los cuales se aleatorizó el orden. Para cada tratamiento, realizaron un pre test y un post test de 100 metros con mediciones de intervalos cada 20 metros. Se realizaron 2 análisis de varianza (ANOVA) de medidas repetidas de 2 y 3 vías, con el objetivo de analizar el efecto de los tratamientos en el tiempo total de carrera y en cada uno de los intervalos de la carrera de velocidad, respectivamente. También, se realizó un análisis individual, utilizando estadísticos descriptivos y gráficos. No hubo interacción significativa entre las mediciones y los tipos de entrenamiento (F = 1.733 p = .162), ni entre las mediciones, los tipos de entrenamiento y los intervalos de distancia (F = 0.569 p = .903). En el análisis individual, se observa como los cambios en la velocidad según el tipo de tratamiento varían entre sujetos, siendo el tratamiento de velocidad con el que más sujetos mejoran.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Speed plays a key role in performance in both collective and individual sports. The objectives of this study are: a) to determine the acute effect of strength, speed, plyometric, and resisted sprint trainings in sprinting and its phases, and b) to analyze the acute effect of these types of training on an individual manner. Eleven experienced sprinters (mean age 21.8 ± 3.04, height 1.764 m ± 0.062, and weight 69.645 kg ± 4.946) participated in five training sessions (S, SP, P, RS, and control) assigned in a random order. For each treatment, 100 meter-pre and post-tests were conducted with interval measurements every 20 meters. Two-way and three-way variance analyses (ANOVA) of repeated measurements were conducted to analyze the effect of the types of training on the total race time and in each interval, respectively. In addition, descriptive statistics and graphs were used for an individual analysis. For the group analysis, no significant interaction was found between measurements and the types of training (F = 1.733 p = .162) or between measurements, types of training, and distance intervals (F = 0.569 p = .903). However, in the individual analysis, changes in speed based on the type of treatment vary between subjects, being speed the treatment that shows more improvement in subjects.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo A velocidade tem um papel fundamental no desempenho esportivo, tanto em esportes individuais quanto coletivos. Este estudo tem como objetivo: a) determinar o efeito agudo dos tipos de treinamento de força, velocidade, pliometria e velocidade contrarresistência na corrida de velocidade e suas fases e b) realizar a análise do efeito agudo destes tipos de treinamento de maneira individual. Onze velocistas (idade média de 21,8 anos ± 3,04, altura de 1,764 m ± 0,062 e peso de 69,645 kg ± 4,946), com experiência como velocistas realizaram cinco tratamentos agudos (F, V, P, VR e controle), para os quais se aleatorizou a ordem. Para cada tratamento, foram realizados um pré-teste e um pós-teste de 100 metros com medições de intervalos a cada 20 metros. Foram realizadas 2 análises de variância (ANOVA) de medidas repetidas de 2 e 3 vias, a fim de analisar o efeito dos tratamentos no tempo total de corrida e em cada um dos intervalos da corrida de velocidade, respectivamente. Também, foi realizada uma análise individual, utilizando estatísticos descritivos e gráficos. Não houve interação significativa entre as medições e os tipos de treinamento (F = 1,733 p = 0,162), nem entre as medições, os tipos de treinamento e os intervalos de distância (F = 0,569 p = 0,903). Na análise individual, observa-se como as mudanças na velocidade segundo o tipo de tratamento variam entre sujeitos, sendo o tratamento de velocidade com o que mais sujeitos melhoram.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[velocidad]]></kwd>
<kwd lng="es"><![CDATA[fuerza]]></kwd>
<kwd lng="es"><![CDATA[velocidad contra resistencia]]></kwd>
<kwd lng="es"><![CDATA[pliometría]]></kwd>
<kwd lng="es"><![CDATA[efecto agudo]]></kwd>
<kwd lng="en"><![CDATA[speed]]></kwd>
<kwd lng="en"><![CDATA[strength]]></kwd>
<kwd lng="en"><![CDATA[resisted sprint]]></kwd>
<kwd lng="en"><![CDATA[plyometrics]]></kwd>
<kwd lng="en"><![CDATA[acute effect]]></kwd>
<kwd lng="pt"><![CDATA[velocidade]]></kwd>
<kwd lng="pt"><![CDATA[força]]></kwd>
<kwd lng="pt"><![CDATA[velocidade contrarresistência]]></kwd>
<kwd lng="pt"><![CDATA[pliometria]]></kwd>
<kwd lng="pt"><![CDATA[efeito agudo]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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