Long-Term Effects of Real-Time Remotely Supervised High-Intensity Interval Training in Adolescents With Obesity

Area of Science:

• Obesity management in adolescents
• Remote exercise interventions
• Clinical trial research

Background:

• High-intensity Interval Training (HIIT) is effective for adolescent obesity.
• Remote HIIT delivery models are emerging.
• Sustained benefits after supervision cessation are unclear.

Purpose of the Study:

• To analyze the effects of a 6-month remote HIIT program on post-intervention and 12-month follow-up outcomes.
• To explore the association between motivation and program engagement.

Main Methods:

• Quasi-experimental study with 96 adolescents with obesity.
• Experimental Group (EG) received remote HIIT plus standard care; Control Group (CG) received standard care.
• Assessments at baseline, 6 months, and 12 months.

Main Results:

• EG showed significant reductions in BMI, BMI z-score, and waist circumference post-intervention.
• Improvements in flexibility and muscular endurance were observed in the EG.
• No significant changes during the 12-month follow-up; appearance motivation negatively correlated with engagement.

Conclusions:

• Remote HIIT is effective for adolescent obesity management, with sustained benefits.
• The program improved weight and physical fitness.
• Appearance-driven motivation may hinder engagement.