Feasibility Testing of a Dyadic Exercise Program for Patients Undergoing Thoracic Radiotherapy and Their Family Caregivers

This study is testing whether a paired exercise program — involving both the patient and a family caregiver doing gentle exercise together — is practical and beneficial for people receiving radiation therapy for lung or esophageal cancer. **You may be eligible if...** - You have been diagnosed with non-small cell lung cancer or esophageal cancer and are scheduled for at least 24 sessions of radiation to the chest - You are in reasonably good health and able to be active - You have a family member (spouse, sibling, or adult child) willing to exercise with you - Both you and your caregiver are 18 or older and can communicate in English **You may NOT be eligible if...** - You have cognitive problems that would prevent completing questionnaires - Your family caregiver has conditions that prevent safe exercise participation Talk to your doctor to see if this trial is right for you.