Corrêa, Fernanda Rocha, Ricardo Luís Fernandes Guerra, e Victor Zuniga Dourado. 2013. “Reliability of Heart Rate Variability Analysis During Submaximal Exercise in Subjects Aged 60 Years and Older”. Revista De Fisioterapia Respiratória E CardioVascular 1 (2):37-43. https://periodicos.ufrn.br/revistadefisioterapia/article/view/3597.