Bechke, Emily, Brian Kliszczewicz, Yuri Feito, Hannah Kelemen, and Brett Nickerson. “Resting Cardiac Autonomic Activity and Body Composition Following a 16-Week High-Intensity Functional Training Intervention in Women: A Pilot Study”. Journal of Human Sport and Exercise 12, no. 3 (September 26, 2017): 680–688. Accessed June 23, 2024. https://www.jhse.ua.es/article/view/2017-v12-n3-resting-cardiac-autonomic-activity-body-composition-.