Telephone-based Physical Activity Coaching or Self Monitored Physical Activity to Improve Physical Function in Older Adults Who Are Undergoing Surgery for Lung Cancer and Their Caregivers

Inclusion Criteria:

* PATIENT: Documented informed consent of the participant and/or legally authorized representative
* PATIENT: Agreement to allow the use of preoperative chest CT scan for exploratory analysis, if available
* PATIENT: Agreement to wear pedometer during study duration

  * If unwilling, exceptions may be granted with study primary investigator (PI) approval
* PATIENT: Age \>= 65 years
* PATIENT: Ability to read and understand English or Spanish and willingness to complete participant-reported outcomes and assessments
* PATIENT: Diagnosis of lung cancer or presumed lung cancer (as determined by surgeons) in patient
* PATIENT: Scheduled to undergo lung surgery for lung cancer or suspected lung cancer with curative intent (neoadjuvant therapy allowed)
* PATIENT: Adults lacking capacity to consent in the opinion of the attending surgeon will not be enrolled
* FCG: Documented informed consent of the participant and/or legally authorized representative
* FCG: Age \>= 18
* FCG: Ability to read and understand English or Spanish and willingness to complete participant-reported outcomes and assessments
* FCG: Adults lacking capacity to consent in the opinion of the attending surgeon will not be enrolled

Exclusion Criteria:

* PATIENT: Lung surgery is scheduled in less than 14 calendar days from the time of registration
* PATIENT: Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including exercise program and compliance issues related to feasibility/logistics)
* FCG: Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including exercise program and compliance issues related to feasibility/logistics)