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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Función endotelial en deportistas de alta competición

Gutiérrez Sánchez, José Bernardo 20 April 2007 (has links)
El ejercicio físico induce una serie de modificaciones en el aparato cardiovascular, tanto estructurales como funcionales.Mediante pletismografía arterial se analizaron los flujos arteriales en hiperemia reactiva de miembros superiores e inferiores, de grupos comparativos con distintos hábitos de ejercicio (remeros, ciclistas, exciclistas, sedentarios) y estudiamos su relación con marcadores bioquímicos de disfunción endotelial. Observamos que los grupos con antecedente de haber realizado ejercicio y los que realizan activamente ejercicio muestran un aumento sistémico en la vasodiltación reactiva a la isquemia con mayor incremento en la extremidad que tiene mas carga de trabajo físico, estos grupos muestran cambios bioquímicos favorables con disminuciones en los marcadores de disfunción endotelial, permaneciendo en el grupos de exciclistas el efecto protector del estado antioxidante total, sin embargo se observa un aumento de enzima conversora de angiotensina en el grupo de exciclistas y en los grupos deportistas activos. / Physical exercise induces a series of structural as well as functional modifications in the cardiovascular system.By arterial plethysmography, arterial flows in reactive hyperemia of the upper and lower extremities were analyzed in comparative groups with different exercise habits (rowers, cyclists, ex-cyclists, sedentary), and we studied its relation with biochemical markers of endothelial dysfunction and cardiovascular risk. We observed that the groups with a history of having done exercise and those that actively exercise show an increase in reactive vasodilatation to ischemia in the extremity that has the greatest amount of physical work. These groups show favorable biochemical changes with decreases in endothelial dysfunction and cardiovascular risk markers with the protector effect of the total antioxidant state remaining in ex-cyclists; however, there seems to be a tendency to increase angiotensin converting enzyme in the group of ex-cyclists and in active sportsman.

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