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Heart-rate variability in low-risk prematurely born infants reaching normal term: A comparison with full-term newborns
(1993)
To investigate the influence of prematurity and postnatal age on the maturation of the autonomic nervous system function, we analysed heart-rate and heart-rate variability in twelve prematurely born infants (<37 weeks ...
Poincaré plot indexes of heart rate variability: Relationships with other nonlinear variables
(2013-10-01)
The Poincaré plot for heart rate variability analysis is a technique considered geometrical and non-linear, that can be used to assess the dynamics of heart rate variability by a representation of the values of each pair ...
Poincaré plot indexes of heart rate variability: Relationships with other nonlinear variables
(2013-10-01)
The Poincaré plot for heart rate variability analysis is a technique considered geometrical and non-linear, that can be used to assess the dynamics of heart rate variability by a representation of the values of each pair ...
Early and late analysis of postpartum stress in newborn foals
(2017-01-01)
The aim of this study was to evaluate newborn foals stress in the first 48 hours of life. Heart rate (HR), heart rate variability (HRV) and serum cortisol concentrations, blood glucose, and lactate were determined in foals ...
Heart rate variability as important approach for assessment autonomic modulation
(2016-04-01)
Alterations in the heart rate recovery and heart rate variability have been associated with greater risk of mortality and early prognosis of cardiac diseases. Thus, strategies for assessing autonomic nervous system and its ...
The relationship between heart rate reserve and oxygen uptake reserve in heart failure patients on optimized and non-optimized beta-blocker therapy
(Faculdade de Medicina / USP, 2008)
BACKGROUND: The relationship between the percentage of oxygen consumption reserve and percentage of heart rate reserve in heart failure patients either on non-optimized or off beta-blocker therapy is known to be unreliable. ...
Comparison of Polar(®) RS800G3(™) heart rate monitor with Polar(®) S810i(™) and electrocardiogram to obtain the series of RR intervals and analysis of heart rate variability at rest
(Wiley-Blackwell, 2014)
The Polar(®) RS800G3(™) rate monitor was released in the market to replace the Polar(®) S810i(™) , and few studies have assessed that the RR series obtained by this equipment is reliable for analysis of heart rate variability ...
Impacto da desnutrição na modulação autonômica cardíaca em crianças
(2016-11-01)
Objective To compare the autonomic behavior between malnourished children and a control group using analysis of heart rate variability (HRV). Method Data were analyzed from 70 children who were divided into two groups: ...
Comparison of resting heart rate measured using a cardiac monitor and an oscilometric device in adolescents: Analysis of sensitivity and specificity
(2016-05-01)
Study design: Experimental study Objectives: To assess the consistency and efficiency of an oscillometric device for measuring resting heart rate in adolescents. Methods: Data from adolescents of both sexes aged between ...