Statewide Unified Network for Remote Intervention of Strength and Exercise

Inclusion Criteria: * Gastrointestinal cancer (esophageal, gastric, pancreatic, colon, and rectal) treated with chemotherapy (and other treatments, as clinically indicated) before surgery OR Lung cancer (non-small cell and small-cell) treated with chemotherapy (and other treatments, as clinically indicated) for advanced- or extensive-stage disease. * Completion of the modified version of the Physical Activity Readiness Questionnaire. Exclusion Criteria: * Actively treated for another non-gastrointestinal or non-lung malignancy (surveillance with observation is allowed). * Engage in more than 150 minutes per week of aerobic physical activity and two or more sessions of muscle strengthening activity per week over the last three months (self-report). * Unable to walk for 6 minutes or two city blocks independently (self-report). * Enrollment in another study that intervenes upon physical activity, diet, or body composition as a primary objective (self-report). * Unable to read and speak English. * No access to a reliable internet connection. * Currently an AdventHealth employee.