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Updated: Jul 2, 2026

A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement
Published on: February 22, 2022
Yong Liu1,2, Alan R Barker2, Minghui Li3
1Sports and Arts Department, Zhejiang Wanli University, Ningbo, China.
This study evaluated the PRO-HIIT intervention in Chinese adolescents, finding high retention and positive participant feedback. Process evaluation insights can refine school-based high-intensity interval training programs.
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