Costantino, C., et al. “Effect of the Vibration Board on the Strenght of Ankle Dorsal and Plantar Flexor Muscles: A Preliminary Randomized Controlled Study”. Acta Biomedica Atenei Parmensis, vol. 77, no. 1, Apr. 2006, pp. 10-16, https://mattioli1885journals.com/index.php/actabiomedica/article/view/1980.