Ramalho, Ellen S. V., Estevam L. Souza-Junior, Marciane Magnani, and Valdir A. Braga. 2017. “Gender Differences in Heart Rate Variability Among Individuals Undergoing Regular Resistance Training : Preliminary Observations”. Sultan Qaboos University Medical Journal 17 (2):209-12. https://doi.org/10.18295/squmj.2016.17.02.012.