Home-Based Respiratory Muscle Training and Aerobic Exercise Programs to Improve Lung Health in Current and Former Cigarette Smokers

Inclusion Criteria: * Age ≥ 50 years old * Current smoker with a ≥ 20-pack-years history * Former smoker within the past 15 years, with a history of ≥ 20 pack-years (CT scan cohort only) * Participant must be able to speak, read and comprehend English language * Cognitively capable of following direction and performing the intervention * Understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure Exclusion Criteria: * Any previous lung cancer diagnoses and or undergoing treatment for any cancer * Recent pneumonia, bronchitis, or other inflammatory conditions in the lungs, including but limited to chronic obstructive pulmonary disease (COPD) and/or asthma exacerbation within the previous 6 months * Have uncontrolled intercurrent illness including, but not limited to, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, heart failure or psychiatric illness/social situations that would limit compliance with study requirements * Unwilling or unable to follow protocol requirements * Any condition which in the investigator's opinion deems the participant an unsuitable candidate to receive study intervention