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First received: July 17, 2026

Clinical Trial: Grade-Specific Effects of Recess HIIT and MICT on Classroom Attention-Related Behavior in Primary School Children

Study Status: COMPLETED

Recruit Status: COMPLETED

Condition: Classroom Attention-Related Behavior
School-Based Physical Activity

Study Type: INTERVENTIONAL


Official Title: Grade-Specific Effects of HIIT and MICT During School Recess on Observable Classroom Attention-Related Behavior in Primary School Children: A Randomized Controlled Trial

Brief Summary: This randomized controlled trial evaluated whether structured exercise during school recess could improve observable classroom attention-related behavior in primary school children and whether the effects differed between grade levels.A total of 144 third- and fifth-grade students were randomly assigned to one of three groups: high-intensity interval training (HIIT), moderate-intensity continuous training (MICT), or routine recess activity. The intervention lasted 6 weeks and was conducted three times per week…

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