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espanolResumen: El analisis de la variabilidad de la frecuencia cardiaca (VFC) permite evaluar de forma no invasiva la actividad cardiovascular. La VFC presenta diferencias entre el sueno MOR y NMOR. Aunque, existen inconsistencias en el procedimiento de evaluacion de la VFC en el sueno NMOR, hay estudios que lo dividen en sueno ligero y profundo mientras que otros no lo hacen. Nuestro objetivo fue determinar si habia diferencias entre estos dos tipos de sueno en 12 medidas de la VFC. Se obtuvo la polisomnografia de 24 voluntarios sanos durante dos noches consecutivas. Se encontraron diferencias significativas entre ambos suenos en las medidas del dominio de tiempo DENN y LogVFC y en las del dominio no lineal DE2 y α1. Estas medidas se caracterizan por proporcionar indicadores de la variabilidad en el funcionamiento cardiaco. Se concluye que al menos con estas medidas se justificaria la division del sueno NMOR en ligero y profundo EnglishAbstract: Heart rate variability (HRV) analysis allows a non-invasive assessment of the cardiovascular activity. It has been reported that HRV shows differences between REM and NREM sleep. However, there are inconsistencies in the HRV evaluation of NREM sleep, since there are studies that divide it into light and deep sleep and others do not. The objective of this research was to determine if there were differences between these two types of sleep in 12 measures of HRV. Polysomnography of 24 healthy volunteers was obtained during two consecutive nights. Significant differences were found between both sleep types in the measurements of the time domain SDNN and LogHRV, also in measurements of the non-linear domain SD2 and α1. These measures are characterized by providing indicators of the variability in cardiac function. It is concluded that at least these measures would justify the division of the NREM sleep in light and deep sleep

Comparación del sueño ligero y profundo por medio de la variabilidad de la frecuencia cardíaca