The purpose of this study is to establish the acceptability and feasibility of a culturally relevant, theory-based smartphone-delivered physical activity intervention among African American women aged 50-65 years.

This study will establish the acceptability and feasibility of a culturally relevant, theory-based smartphone-delivered physical activity intervention among African American women aged 50-65 years. To accomplish this, we will deliver our previously developed Smart Walk physical activity intervention, originally developed for African American women aged 24-50 years old, to 20 sedentary and obese African American women aged 50 to 65. We will collect data on the acceptability and feasibility of the intervention, as well as areas of intervention refinement to enhance the social, cultural, and behavioral relevance of the intervention for women in this age group.

Inclusion Criteria:

• Self-reported African American female
• Between the ages of 50 to 65
• Insufficiently Active (less than or equal to 60 mins of moderate-to-vigorous physical activity/week measured by Exercise Vital Sign Questionnaire)
• BMI > 30
• English speaking and reading

Exclusion Criteria:

• Plans to relocate out of Phoenix area in next 6 months
• Endorsing an item on the PAR-Q, unless a doctor's note for study participation in provided
• Self-reported participation in another diet or weight loss study
• Non-English reading and speaking
• Pregnant or planning to become pregnant in the next 6 months

female