Delgado Acosta, Henry, and Ernesto Acuña Corrales. 2007. “Effect of an Aerobic Exercise Program and a Weight Circuit Program on the Quality of Life, Dyspnea, and Cardiorespiratory Resistance in Subjects With Chronic Pulmonary Disease”. MHSalud: Revista En Ciencias Del Movimiento Humano Y Salud 4 (1). https://doi.org/10.15359/mhs.4-1.1.