Reyes Díaz, Juan Carlos, and Rosana Reyes Guerra. 2016. “The Early, Systematic and Programmed Physical Activity: Way to Attenuate the Human Aging and to Health Consolidate”. Arrancada 16 (29):42-52. https://revistarrancada.cujae.edu.cu/index.php/arrancada/article/view/5-29.