D’Anna, Cristiana, Aurora D’Alessandro, and Rodolfo Vastola. 2020. “Swimming, Back Pain and Electromyography: A Brief Review”. Journal of Human Sport and Exercise 15 (4proc):S1187-S1194. https://www.jhse.ua.es/article/view/2020-v15-n4-proc-swimming-back-pain-electromyography-review.