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High-Intensity Exercise Snacks for Reducing Mobile Phone Addiction in Adolescents
Sponsor: Jinan University Guangzhou
Summary
This study is a randomized controlled trial (RCT) designed to evaluate the long-term effectiveness of "Exercise Snacks" (fragmented, high-intensity bouts of exercise) in reducing mobile phone addiction among adolescents. Participants will be randomly assigned to either an intervention group or a control group. The intervention spans 5 months and is followed by a 1-month follow-up period (Month 6). The intervention group will perform short bursts of exercise (e.g., 1-minute sprints, squats) multiple times daily during school breaks. The program is divided into three progressive phases: adaptation, enhancement, and consolidation. The study aims to determine whether this sustained "snack-style" exercise regimen can significantly lower mobile phone addiction scores, improve physical fitness, and enhance psychological traits such as self-control and resilience over a semester-long period.
Official title: Effect of Fragmented Exercise Snacks on Mobile Phone Addiction and Psychophysical Health in Adolescents: A Randomized Controlled Trial
Key Details
Gender
All
Age Range
12 Years - 18 Years
Study Type
INTERVENTIONAL
Enrollment
386
Start Date
2025-09-01
Completion Date
2026-03-01
Last Updated
2026-04-30
Healthy Volunteers
No
Interventions
Exercise Snacks Protocol
The intervention consists of a structured 5-month "Exercise Snacks" program. Participants perform "snacks"-defined as isolated bouts of vigorous-intensity physical activity (\<2 min)-distributed 3-4 times throughout the school day during breaks. Content: The regimen includes "Sprint Snacks" (e.g., stair climbing, high knees) and "Strength Snacks" (e.g., squats, push-ups). Intensity: Participants are instructed to reach a subjective effort level of Borg RPE \> 14 (Somewhat Hard to Hard). Progression: The program follows a phased approach: Adaptation (Month 1): Focus on habit formation and movement quality. Enhancement (Months 2-3): Increased frequency and inclusion of weekly collective HIIT sessions. Consolidation (Months 4-5): Integration of cognitive-behavioral guidance to replace mobile phone usage habits.
Locations (1)
School of Physical Education, Jinan University
Shatin, New Territories, Hong Kong