School-based Physical Activity Intervention for Obesity Among Adolescents With Intellectual Disability in Hong Kong
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Hong Kong Baptist University
- Enrollment
- 86
- Locations
- 1
- Primary Endpoint
- BMI Change
Study Overview
Brief Summary
Considering that children with intellectual disability (ID) might be more vulnerable to obesity than their counterparts in the general population. This study aimed to develop and evaluate the effectiveness of an adapted physical activity (APA) program in reducing weight among adolescents with ID. The hypothesis of the study was the APA program would be able to decrease obesity among adolescents with ID.
Detailed Description
Background: Children with intellectual disability (ID) might be more vulnerable to obesity than their counterparts in the general population. This study aimed to evaluate the effectiveness of an adapted physical activity (APA) program in reducing weight among adolescents with ID.
Methods: A 9-month randomized controlled trial of a school-based APA program was conducted in adolescents with ID and overweight/obesity in Hong Kong. The intervention group received the APA program which consisted of endurance and strength-building exercises at a frequency of two sessions per week, while the control group received routine PE classes as usual. Data on obesity-related variables were collected before the intervention, at the midpoint of the intervention and after the intervention. Linear mixed-effect models were used to examine the intervention effects.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- Double (Participant, Outcomes Assessor)
Eligibility Criteria
- Ages
- 12 Years to 18 Years (Child, Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •aged between 12 and 18 years
- •overweight and obesity
- •mild or moderate intellectual disability
Exclusion Criteria
- •physical disability
- •medical predispositions towards obesity (genetic syndrome or drug treatment)
- •contraindications (e.g. asthma, heart disease)
- •having participated in other exercise programs in the past 6 months.
Outcomes
Primary Outcomes
BMI Change
Time Frame: Change from baseline at 4 months and 9 months
The primary outcome variable was change in BMI (weight (kg) / height2 (m)) that was further calculated from the height and weight measured at school in the morning time. Height was measured to the nearest 0.1 cm using a stadiometer and weight was measured to the nearest 0.1 kg on a TANITA digital scale (TBF-410) with the subject wearing lightweight clothing and no shoes.
Secondary Outcomes
- Weight Change(Change from baseline at 4 months and 9 months)
- BMIz Change(Change from baseline at 4 months and 9 months)
- Percent Body Fat Change(Change from baseline at 4 months and 9 months)
- Waist Circumference Change(Change from baseline at 4 months and 9 months)
- Waist-to-height Ratio Change(Change from baseline at 4 months and 9 months)
- Muscular Strength and Endurance Change(Change from baseline at 4 months and 9 months)
- Flexibility Change(Change from baseline at 4 months and 9 months)
- Cardiorespiratory Fitness Change(Change from baseline at 4 months and 9 months)
Investigators
Gao Yang
Assistant Professor
Hong Kong Baptist University