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Effects of school-based concurrent training on body composition and cardiorespiratory fitness in obese children in a randomized controlled trial.

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  • معلومة اضافية
    • المصدر:
      Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE
    • بيانات النشر:
      Original Publication: London : Nature Publishing Group, copyright 2011-
    • الموضوع:
      Cardiorespiratory Fitness*/physiology ; Body Composition*/physiology ; Pediatric Obesity*/therapy ; Pediatric Obesity*/physiopathology ; Exercise*/physiology ; Exercise Therapy*/methods; High-Intensity Interval Training/methods ; Resistance Training/methods ; Humans ; Male ; Female ; Child ; Schools ; Body Mass Index ; Single-Blind Method ; Oxygen Consumption
    • نبذة مختصرة :
      Childhood obesity is a major global health concern and is associated with increased risks of cardiovascular and metabolic diseases. School-based exercise interventions that combine high-intensity interval training with other exercise modalities may be effective, but the optimal approach for obese children remains unclear. This single-blind randomized controlled trial included thirty obese children (body mass index [BMI] ≥ 95th percentile for age and sex, mean age 10.1 ± 0.7 years, 15 boys and 15 girls). Participants were randomly assigned to one of three groups: concurrent training with sprint interval and aerobic exercise (CT1, n = 10, 5 boys, 5 girls), concurrent training with sprint interval and strength exercise (CT2, n = 10, 5 boys, 5 girls), or a non-exercise control group (CON, n = 10, 5 boys, 5 girls). Both intervention groups completed two sessions per week for eight weeks, each consisting of 10 min of sprint interval training followed by either 10 min of aerobic exercise (CT1) or 10 min of strength training (CT2). Body composition and cardiorespiratory fitness (CRF) were measured at baseline and post-intervention. Both CT1 and CT2 groups showed significant reductions in BMI and fat mass, and significant improvements in maximal oxygen uptake (VO2max) compared to the control group (all p < 0.05). The increase in VO2max was greater in the CT2 group than in the CT1 group (6.1 vs. 3.1 mL/kg/min, p < 0.01). Visceral adipose tissue was significantly reduced in CT1, while waist circumference was significantly reduced in CT2. No significant differences were found between the intervention groups for these outcomes. No adverse events were reported. Eight weeks of school-based sprint interval concurrent training, combined with either aerobic or strength exercise, effectively improved body composition and cardiorespiratory fitness in obese children. These results support the inclusion of such exercise protocols in school programs for the prevention and management of childhood obesity.
      (© 2025. The Author(s).)
    • نبذة مختصرة :
      Declarations. Competing interests: The authors declare no competing interests.
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    • Grant Information:
      202416307635B Chinese Society of Education
    • الموضوع:
      Date Created: 20250926 Date Completed: 20250927 Latest Revision: 20250929
    • الموضوع:
      20260130
    • الرقم المعرف:
      PMC12474995
    • الرقم المعرف:
      10.1038/s41598-025-19041-3
    • الرقم المعرف:
      41006526