Fidale, Thiago Montes, Gilmar da Cunha Sousa, Zenon Silva, Leonardo Roever, Eduardo Paul Chacur, Lazaro Antônio dos Santos, Lucas Resende Sousa, et al. “Electromyographic Activity of the Rectus Abdominis Muscle During Physical Conditioning Exercises: A Systematic Review”. International Journal of Advanced Engineering Research and Science 6, no. 7 (October 5, 2019). Accessed July 22, 2024. https://journal-repository.com/index.php/ijaers/article/view/393.