Russo L, Padulo J, Oliva F, Maffulli N. Letter to Editor concerning “Push up, explosive push up and free fall tests to evaluate the upper body power: A preliminary study in aerobic gymnastics”. J. Hum. Sport Exerc. [Internet]. 2021 Nov. 11 [cited 2024 Apr. 19];16(4):996-9. Available from: https://www.jhse.ua.es/article/view/2021-v16-n4-letter-editor-push-explosive-push-free-fall-tests-ev