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Nudge-Based Exercise Intervention for Adolescents With Obesity
Sponsor: Nanjing Children's Hospital
Summary
This study will evaluate whether a nudge-based exercise program can improve body mass index (BMI) and physical activity in adolescents with obesity. About 140 adolescents aged 10-19 years will participate. Participants will be placed into one of two groups according to the order in which they are admitted to the hospital. One group will receive a standard exercise intervention, while the other group will receive an 8-week nudge-based exercise program designed to make regular physical activity easier to start and maintain. The nudge-based program uses simple behavioral strategies to make exercise easier to start and maintain, including framed and visual information, default exercise options, reminders, peer comparison and support, goal commitment, progress feedback, and small incentives. The program combines face-to-face sessions during hospitalization with home-based support, exercise tools, activity recording, and online follow-up. The main outcomes are changes in BMI and physical activity. Other outcomes include body composition, blood metabolic markers, health-related quality of life, and exercise self-efficacy. Assessments will be conducted before and after the intervention, with follow-up assessments used to examine whether the effects are maintained over time.
Official title: Development and Application of a Nudge-Based Exercise Program for Adolescents With Obesity
Key Details
Gender
All
Age Range
10 Years - 19 Years
Study Type
INTERVENTIONAL
Enrollment
140
Start Date
2026-07-01
Completion Date
2027-06-30
Last Updated
2026-09-17
Healthy Volunteers
No
Conditions
Interventions
Standard Exercise Intervention
Participants receive a standardized exercise program based on current clinical guidance. The program primarily consists of moderate-intensity aerobic exercise performed 3-4 times per week for 40-50 minutes per session. Participants also receive routine exercise-related health education and regular follow-up support.
Nudge-Based Exercise Intervention
Participants receive an 8-week nudge-based exercise program designed to facilitate the initiation and maintenance of physical activity. The intervention incorporates framed and visual information, social reference, default exercise options, reduced effort for accessing exercise opportunities, reminders, commitment strategies, progress feedback, and incentives. During hospitalization, participants receive structured face-to-face sessions and an exercise nudge package containing exercise equipment, activity task cards, and a reminder device. After discharge, home-based support is provided through online exercise reminders, activity recording, peer interaction, progress feedback, and incentives.
Locations (1)
Nanjing Children's Hospital
Nanjing, Jiangsu, China