Costantino, C., F. Pogliacomi, and G. Soncini. 2006. “Effect of the Vibration Board on the Strenght of Ankle Dorsal and Plantar Flexor Muscles: A Preliminary Randomized Controlled Study”. Acta Biomedica Atenei Parmensis 77 (1): 10-16. https://mattioli1885journals.com/index.php/actabiomedica/article/view/1980.