Design: For this prospective, double-blinded, randomized clinical trial, people after stroke will be randomly allocated into either experimental or control/sham groups. The experimental group will undertake training of the inspiratory plus expiratory muscles with the Orygen Dual Valve, regulated at 50% of the subjects' maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) values, seven times/week over eight weeks during 40 minutes/day. The control group will undertake the same protocol, but the participants will receive the devices without resistance. At baseline, post intervention, and four weeks after the cessation of the intervention, researchers blinded to group allocations will collect all outcome measures.