Díaz Chapell, P.A., Vázquez Alfonso, Y., Batista Sotolongo, C. and Velasteguí López, P. 2019. Proposal for plyometric exercises to improve the power of youth pitchers in the province of Mayabeque. ConcienciaDigital. 2, 4 (Oct. 2019), 87-95. DOI:https://doi.org/10.33262/concienciadigital.v3i1.1006.