Goal Setting to Promote Physical Activity Adherence in Midlife Adults

This study is testing whether different goal-setting approaches help middle-aged adults with obesity stick to a regular exercise routine over time. Participants use a Fitbit to track their activity. **You may be eligible if:** - You are 45–65 years old - Your body mass index (BMI) is between 30 and 50 - You weigh at least 110 pounds - You currently exercise less than 60 minutes per week at a moderate or vigorous intensity - You own a smartphone (iOS or Android) - You live in or near Phoenix, Arizona **You may NOT be eligible if:** - You have certain health conditions that make exercise risky without a doctor's clearance - Your resting blood pressure is very high (above 200/110) - You are pregnant or plan to become pregnant in the next year - You are currently enrolled in another exercise, nutrition, or weight-loss program - You have been diagnosed with mild cognitive impairment Talk to your doctor to see if this trial is right for you.