Individually Tailored, Supervised, Remote Exercise Intervention to Improve Physical Function for Stage I-III Gastroesophageal Cancer Survivors, PRECISE Trial

Inclusion Criteria: * Adults ≥ 18 years old at the start of study treatment * Diagnosis of early-stage (Stage I, II, III) esophageal, gastroesophageal junction, or gastric cancer. Histology can be adenocarcinoma, squamous cell carcinoma, or poorly differentiated carcinoma * Treated with at least one systemic therapy (chemotherapy or immunotherapy) and within 12 months of completing curative intent gastroesophageal cancer (GEC) treatment * Have evidence of physical function impairment, defined as a SPPB score of \< 12) at baseline * Ability to understand English and the willingness to sign a written informed consent document Exclusion Criteria: * Patients with stage I disease who underwent endoscopic resection or surgery alone without perioperative systemic therapy * Patients with stage IV disease or unresectable locally advanced disease taking a palliative treatment approach without a clearly defined end of treatment * Patients currently receiving ongoing systemic therapy for GEC or another malignancy * Patients who are unable to provide informed consent * Any other condition or pre-existing co-morbidity that would, in the Investigator's judgment, contraindicate the participation in the study due to safety concerns with study procedures * Currently participating in another exercise intervention research study seeking to improve functional status, alleviate frailty, muscle strength, exhaustion/fatigue, or cognitive function