Fractal correlations and linear analyses of heart rate variability in healthy young people with different levels of physical activity - Moraes, Íbis Ariana Peña de; Silva, Talita D.; Massetti, Thais; Menezes, Lilian D. C.; Ribeiro, Vivian F.; Tropiano, Ligia M. C. C.; Barnabé, Viviani; Hoshi, Rosangela Akemi; Monteiro, Carlos Bandeira de Mello; Fernandes, Marcelo (Cardiology in the Young, 2019)