Childhood-onset obesity prevention
Conditions
Interventions
Health Education (HE):Two 45-min classroom sessions per week for 16 weeks
content covers physical activity, diet, and mental health
delivered by trained instructors
attendance recorded.
Structured Fitness Program (SFP):Two 45-min sessions per week for 16 weeks
10-min warm-up ? ~30-min moderate-to-vigorous activities using games/sport drills (e.g., basketball, football, dance, short sprints, obstacle course)
target 60–80% age-predicted HRmax with HR monitoring ? cool-down.
Plyo-HIIT :Two 45-min sessions per week for 16 weeks
10-min warm-up ? 4×2-min rope skipping with 1-min active recovery ? progressive plyometric blocks: wks 1–4 (double-leg jumps/burpees), wks 5–8 (hurdle/zig-zag jumps), wks 9–12 (split-squat & tuck jump
inchworm + plank jacks)
each drill 15 s work + 15 s rest for 2 min
1-min rest between blocks ? cool-down
attendance and safety monitored.
Sponsors
Hong Kong Baptist University (Department of Sport, Physical Education and Health)
Eligibility
Sex/Gender
All
Age
9 Years to 12 Years
Inclusion criteria
Inclusion criteria: Inclusion Criteria 1) Children aged 9-12 years old 2) able to speak and understand Chinese
Exclusion criteria
Exclusion criteria: Children with any medical conditions, both physical and mental, that hamper their participation in the Plyo-HIIT intervention, including but not limited to – • Children with musculoskeletal diseases that limit or contraindicate physical activity • Children with chronic diseases (chronic asthma, kidney disease, diabetes), or who have received medications that alter body composition or insulin secretion. • Children who on medical exam have shown any history or evidence of heart disease • Hypertension • Diagnosed attention deficit hypersensitivity disorder • Children who at the clinical discretion cannot participate or who have presented any symptoms (dyspnea, chest pain, palpitations, among others) during the regular school physical education class.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Muscle-to-fat ratio (MRI; mid-thigh & abdomen L4–L5); | — |
Secondary
| Measure | Time frame |
|---|---|
| Body fat percentage;Lower-limb power (vertical & squat jump);Handgrip strength;Cardiorespiratory fitness (20-m shuttle run);Flexibility (sit-and-reach);BMI;Physical activity level (PAQ-C);Hair cortisol concentration; | — |
Countries
China
Contacts
Public ContactBjorn Tsz-King Tam
Hong Kong Baptist University, Department of Sports and Health Sciences
Outcome results
None listed