Luiz Carlos Marques Vanderlei

Learn More
The aim of the present study was to compare heart rate variability (HRV) at rest and during exercise using a temporal series obtained with the Polar S810i monitor and a signal from a LYNX(R) signal conditioner (BIO EMG 1000 model) with a channel configured for the acquisition of ECG signals. Fifteen healthy subjects aged 20.9 +/- 1.4 years were analyzed.(More)
Autonomic nervous system (ANS) plays an important role in the regulation of the physiological processes of the human organism during normal and pathological conditions. Among the techniques used in its evaluation, the heart rate variability (HRV) has arising as a simple and non-invasive measure of the autonomic impulses, representing one of the most(More)
The aim of the present study was to investigate the potential benefits of cold water immersion (CWI) and active recovery (AR) on blood lactate concentration ([Lac]) and heart rate variability (HRV) indices following high-intensity exercise. 20 male subjects were recruited. On the first visit, an incremental test was performed to determine maximal oxygen(More)
Previous events evidence that sudden cardiac death (SCD) in athletes is still a reality and it keeps challenging cardiologists. Considering the importance of SCD in athletes and the requisite for an update of this matter, we endeavored to describe SCD in athletes. The Medline (via PubMed) and SciELO databases were searched using the subject keywords "sudden(More)
PURPOSE To analyse the temporal sequence of recovery events related to autonomic nervous system and metabolic processes following maximal exercise, applying linear and nonlinear indices of heart rate variability (HRV) and blood lactate concentration. METHODS On the following day of the maximum oxygen consumption test, 20 participants firstly lay down for(More)
OBJECTIVE To determine the effectiveness of oscillating positive expiratory pressure (OPEP) using predetermined expiratory pressures on the viscosity and transportability of sputum in patients with bronchiectasis. METHODS The study involved 15 stable patients with bronchiectasis (7 males; mean age = 53 +/- 16 years), submitted to two consecutive OPEP(More)
Background: The forced vital capacity (FVC) test is routinely performed to evaluate pulmonary function in patients with chronic obstructive pulmonary disease (COPD). However, the influence of the FVC maneuver on the cardiovascular system of patients with COPD is poorly understood. Objectives: To analyze the behavior of heart rate (HR), blood pressure (BP)(More)
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: malnourished and eutrophic, according to the Z-score nutritional status for height and age. For analysis of HRV indices, heart rate was(More)
OBJECTIVE The aim of the present study was to identify risk factors for the occurrence of sport injuries in dancers related to anthropometric variables, training, and specific dance characteristics. DESIGN One-year, retrospective, cross-sectional study. SETTING 26th Dance Festival of Joinville (Brazil), 2008. PARTICIPANTS Five hundred dancers (409(More)
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 of obese and eutrophic children by analyzing heart rate variability. METHODS One hundred twenty-one children (57 male(More)