<?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>0864-0300</journal-id>
<journal-title><![CDATA[Revista Cubana de Investigaciones Biomédicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Invest Bioméd]]></abbrev-journal-title>
<issn>0864-0300</issn>
<publisher>
<publisher-name><![CDATA[ECIMED]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-03002020000100008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Regulación autonómica cardiovascular durante la prueba del peso sostenido en pacientes sanos y diabéticos tipo 2]]></article-title>
<article-title xml:lang="en"><![CDATA[Autonomic cardiovascular regulation during the sustained weight test in healthy subjects and type 2 diabetic patients]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-Alcolea]]></surname>
<given-names><![CDATA[Laritza]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cutiño-Clavel]]></surname>
<given-names><![CDATA[Ileana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rizo-Rodriguez]]></surname>
<given-names><![CDATA[Raul Ramón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lazo-Herrera]]></surname>
<given-names><![CDATA[Luis Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Albarrán-Torres]]></surname>
<given-names><![CDATA[Felipe Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ibarra-Peso]]></surname>
<given-names><![CDATA[Jacqueline Marlene]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Hechavarría]]></surname>
<given-names><![CDATA[Miguel Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas de Santiago de Cuba  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Ciencias Médicas de Pinar del Rio Facultad de Ciencias Médicas de Pinar del Río Dr. Ernesto Che Guevara de la Serna Laboratorio de Ciencias Básicas Biomédicas]]></institution>
<addr-line><![CDATA[Pinar del Rio ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Católica de la Santísima Concepción Facultad de Medicina Departamento de Ciencias Básicas y Morfología]]></institution>
<addr-line><![CDATA[Concepción ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Católica de la Santísima Concepción Facultad de Medicina Departamento Clínicas y Preclínicas ]]></institution>
<addr-line><![CDATA[Concepción ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>39</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-03002020000100008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-03002020000100008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-03002020000100008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  En la actualidad se hace imprescindible el estudio de la diabetes mellitus tipo 2 a partir de técnicas poco costosas en función de la carga sanitaria que representa, es entonces donde la prueba del peso sostenido gana valor como ejercicio isométrico estático cubano en el estudio de la variabilidad de la frecuencia cardíaca.  Objetivo: Determinar las respuestas electrofisiológicas autonómicas y hemodinámicas en estado basal y durante la prueba del peso sostenido en pacientes sanos y con diabetes tipo 2.  Métodos: Se realizó un estudio en la Universidad de Ciencias Médicas de Santiago de Cuba, no observacional, cuasi-experimental, de tipo antes-después con grupo control de 60 pacientes (30 sanos y 60 con diabetes mellitus tipo 2).  Resultados: Los diabéticos presentaron mayor IMC (p = 0,004). En estado basal se experimentaron diferencias significativas entre pacientes sanos y diabéticos. En la mayoría, los parámetros de la variabilidad de la frecuencia cardíaca analizados y durante la prueba del peso sostenido, solo se observaron diferencias significativas en las variables TAS (p = 0,022), BF (p = 0,001) y AF (p = 0,015). Al realizar la prueba del peso sostenido se encontraron variaciones muy significativas (p &lt; 0,001) de los parámetros hemodinámicos, y variaciones significativas de AF (p = 0,023) y BF/AF (p = 0,046) en pacientes sanos; y en diabéticos, diferencias significativas de las variables hemodinámicas.  Conclusiones:  Se determinó una menor respuesta en pacientes diabéticos con respecto a los sanos del sistema nervioso autónomo, lo que expresa un deterioro de este y una disminución de la actividad simpática y parasimpática.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  At present it is indispensable to study type 2 diabetes mellitus with low-cost techniques due to the health load it represents. In this context the sustained weight test acquires great value as a Cuban static isometric exercise for the study of heart rate variability.  Objective:  Determine autonomic and hemodynamic electrophysiological responses at baseline state and during the sustained weight test in healthy subjects and type 2 diabetic patients.  Methods:  A non-observational quasi-experimental before-after study was conducted at the University of Medical Sciences of Santiago de Cuba based on a control group of 60 patients (30 healthy and 30 with type 2 diabetes mellitus).  Results:  Diabetics had a higher BMI (p = 0.004). At baseline state significant differences were found between healthy subjects and diabetic patients. In most of the heart rate variability parameters analyzed and during the sustained weight tests, the only variables that showed significant differences were SBP (p = 0.022), FB (p = 0.001) and FA (p = 0.015). The results obtained from the sustained weight test were the following: very significant variations of hemodynamic parameters (p &lt; 0.001), significant FA (p = 0.023) and FB/FA (p = 0.046) variations in healthy subjects, and significant differences in hemodynamic variables in diabetic patients.  Conclusions:  A lower response by the autonomic nervous system was determined in diabetic patients versus healthy subjects, signaling deterioration of that system and reduced sympathetic and parasympathetic activity.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Variabilidad de la frecuencia cardíaca]]></kwd>
<kwd lng="es"><![CDATA[Frecuencia cardíaca]]></kwd>
<kwd lng="es"><![CDATA[Sistema nervioso autónomo]]></kwd>
<kwd lng="es"><![CDATA[Diabetes mellitus]]></kwd>
<kwd lng="es"><![CDATA[Diabetes mellitus tipo 2]]></kwd>
<kwd lng="en"><![CDATA[heart rate variability]]></kwd>
<kwd lng="en"><![CDATA[heart rate]]></kwd>
<kwd lng="en"><![CDATA[autonomic nervous system]]></kwd>
<kwd lng="en"><![CDATA[diabetes mellitus]]></kwd>
<kwd lng="en"><![CDATA[type 2 diabetes mellitus]]></kwd>
</kwd-group>
</article-meta>
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