Exercise Training to Improve PTSD Symptoms and Health in Older Veterans

Inclusion Criteria: * Veteran status * registered for care at Durham VA Health Care System (VAHCS) * live within 50 miles of fitness facility * meet diagnostic criteria for PTSD as assessed by the CAPS-5 Exclusion Criteria: * history of any psychiatric disorder with severe psychotic features in the past 5 years (e.g., bipolar disorder, mania), as indicated by ICD-10 codes F20-F29 (ICD-9 category 298.9) * prominent suicidal ideation or hospitalization for suicidality in the previous 6 months * clinically significant: neurological disorder, systemic illness affecting central nervous system (CNS) function, or history of seizure disorder in the past 5 years * uncontrolled diabetes defined as: * Abnormal fasting plasma glucose 126 mg/dL, random plasma glucose 200 mg/dL * no active medications for diabetes management (Metformin, insulin, etc.) * no clinical notes in the patient's electronic health record (EHR) indicating monitoring by primary care physician (PCP) or Endo for diabetes management) * end stage liver disease or currently receiving dialysis * physical disabilities precluding use of exercise equipment (assistive mobility devices acceptable) * significant cognitive impairment or diagnosis of Alzheimer's Disease or Dementia * hospitalization or ER visit in the past 6 months for conditions contraindicated for exercise (cardiac event; physical trauma)