**Author details**

Nancy S. Landínez-Parra *Group of Mathematical Modeling and Numerical Methods GNUM-UN, Faculty of Engineering, National University of Colombia, Colombia* 

*Human Corporal Movement Department, Faculty of Medicine, National University of Colombia, Colombia*

Diego A. Garzón-Alvarado and Juan Carlos Vanegas-Acosta *Group of Mathematical Modeling and Numerical Methods GNUM-UN, Faculty of Engineering, National University of Colombia, Colombia* 
