Nery, H. J., Oliveira, A. A. B. de and Landi, D. (2008) “The control of intensity during physical activity through the heart”, Journal of Physical Education , 5(1), pp. 51-54. Available at: https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/3985 (Accessed: 12October2025).