MOTIVATE to Improve Outcomes for Older Veterans With Musculoskeletal Pain and Depression

Inclusion Criteria: * English- speaking * Self-reported musculoskeletal (MSK) pain (include Chronic low back pain (cLBP) +/- radiating symptoms, osteoarthritis (OA), fibromyalgia) on most days for the past 3 months that interferes with daily activities * Pain intensity that is 4+/10 on the numerical pain rating scale * Pain interference threshold 5+ on 3-item Pain, Enjoyment of Life, and General Activity scale (PEG-3) * Depressive symptoms, 10+ on the Patient Health Questionnaire-9 (PHQ-9) * Capable of participating in home-based activity * Interested in participating in a non-pharmacologic program Exclusion Criteria: * No telephone * Not English speaking * Unwilling to be randomized to either study arm * Not interested in participating in a non-pharmacologic program * Self-reported uncorrected hearing and visual impairments precluding ability to participate in telephone sessions or read pedometer screen * Significant (moderate or severe) cognitive impairment (3+ errors) on six-item screening exam * Self-reported dependence on wheelchair, bed-bound, or severe balance impairment or severe osteoarthritis (OA)\* (resulting in inability to participate in physical activity intervention) * Illness requiring hospitalization within the last 3 months that interferes with a home-based physical activity intervention (e.g., fall, gout attack, stroke, heart attack, heart failure, surgery for blocked arteries) * Suicidal intent (see suicide screening protocol), uncontrolled psychotic disorder or psychiatric hospitalization within 1 year, or enrolled in active substance use program (confirmed with scripted protocol over telephone)