Exercise order in school-based concurrent training for adolescents with obesity.

Authors

Yuhang Gao, Chunyan Dai, Jiahui Ke, Xiaodong Wang, Ti Zhang, Meng Cao, Yan Xie

Published in

iScience. Volume 29. Issue 7. Pages 116136. Jul 17, 2026. Epub Jul 06, 2026.

Abstract

Adolescent obesity requires time-efficient school-based exercise strategies that improve fitness and body composition within routine physical education settings. This randomized controlled trial compared two 12-week exercise sequences combining repeated sprint exercise and bodyweight resistance exercise in adolescents with obesity: bodyweight resistance followed by repeated sprint exercise (CRS) and repeated sprint exercise followed by bodyweight resistance (CSR), alongside a non-exercising control group. Fifty-nine participants completed the trial. After adjustment for baseline values, both CRS and CSR showed more favorable post-intervention outcomes than the control group for VO₂max, BMI, body fat percentage, waist circumference, 20-m shuttle run performance, sit-ups, rope skipping, fat-free mass, and resting heart rate. Most outcomes were similar between CRS and CSR, but CRS produced greater improvement in VO₂max. These findings support flexible school-based combined high-intensity exercise programming, while suggesting that resistance-before-sprint sequencing may better target cardiorespiratory fitness.
Chinese Clinical Trial Registry ChiCTR2500103429; ethics approval PN-202400005.

PMID:
42436981
Bibliographic data and abstract were imported from PubMed on 12 Jul 2026.

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