Now showing items 1-10 of 796
Poincaré plot indexes of heart rate variability: Relationships with other nonlinear variables
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 ...
Heart rate variability as important approach for assessment autonomic modulation
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 ...
Hydration status after exercise affect resting metabolic rate and heart rate variability
(AULA MEDICA EDICIONES, C/ISABEL COLBRAND, 2015)
Introduction: Heart rate variability and resting metabolic rate are commonly to assess athlete's physiological status and energy requirements. Exercise-induced dehydration can reach up to 5% of body mass per hour. Consequently, ...
The effect of eccentric strength training on heart rate and on its variability during isometric exercise in healthy older men
The purpose of this study was to investigate if chronic eccentric strength training (ST) affects heart rate (HR) and heart rate variability (HRV) during sub-maximal isometric voluntary contractions (SIVC). The training ...
The effects of combined aerobic and resistance training on heart rate variability in postmenopausal women
Model of the study: Controlled clinical trial. Objective: To verify the effects of 16 weeks of combined aerobic and resistance training on cardiac autonomic modulation in menopausal women. Methods: 17 menopausal women were ...
Impacto da desnutrição na modulação autonômica cardíaca em crianças
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 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
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 ...
Early and late analysis of postpartum stress in newborn foals
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 ...
Analysis of cardiac autonomic modulation in obese and eutrophic children
(Universidade de São Paulo (USP), Hospital das Clínicas, 2010-08-01)
INTRODUCTION: Obesity causes alterations in cardiac autonomic function. However, there are scarce and conflicting data on this function with regard to heart rate variability in obese children.OBJECTIVE: To compare the ...
Autonomic function in patients with functional dyspepsia assessed by 24-hour heart rate variability
(Kluwer Academic/plenum PublNew YorkEUA, 2002)