Adolescent Behavior
Conditions
Keywords
Physical Activity, Healthy Lifestyle, Academic performance
Brief summary
School is a favorable environment for the development of actions aimed at healthy behavioral changes. This project proposes to evaluate the effectiveness of an intervention program on aspects of lifestyle, with a focus on physical activity (PA) and reducing sedentary behaviors, and the relationship of these factors with the academic performance of students in the school from Florianopolis, SC, Brazil. This is a randomized controlled intervention study enroling classes of 7th to 9th grade of fundamental education. The intervention program will last for one year (about ten months), with three focuses: training of teachers, educational and environmental changes to behavior change.
Interventions
BEHAVIORALThe Movement Program
The program duration will be one academic year (around ten months) in 2017. The intervention strategies will focus on: (1) teachers' training and activities on health in curriculum; (2) active opportunities in the school environment (facilities and materials for PA practice) and (3) health education (posters and folders to students and parents).
Sponsors
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Kelly Samara da Silva
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
12 Years to 15 Years
Healthy volunteers
Yes
Inclusion criteria
Students of both sexes Students aged 12-15 years Students who are enrolled in 7-9 grade classes
Exclusion criteria
Students younger than 12 years-old and older than 15 years-old Students with uncompleted data at baseline and/or 10-months follow-up Students who dropout the school
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline in weekly time in moderate-to-vigorous physical activity at 10 months | baseline and 10-months of intervention | A list containing 24 types of PA will be used to measure the weekly frequency and the daily duration of each type of PA that the adolescents perform in a typical week. |
| Change from baseline in the daily time using TV/computer/cellular/video games at 10 months | baseline and 4-months of intervention | The daily time spent using TV/computer/video games of the individual will be estimated at baseline and after 10 months of intervention. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline in the waist circumference at 10 months | baseline and 10-months of intervention | Difference in the waist circumference (cm) between baseline and after 10 months of intervention will be calculated. |
| Change from baseline in the body mass index at 10 months | baseline and 10-months of intervention | Body weight (kg) and height (m) will be used to calculate the body mass index (weight/height², kg/m²). Difference between baseline and after 10 months of intervention will be calculated. |
| Change from baseline in the quality of life score at 10 months | baseline and 10-months of intervention | The quality of life will be measured using the KidScreen instrument. Difference in this score between baseline and after 10 months of intervention will be calculated. |
| Change from baseline in the sleepiness score at 10 months | baseline and 10-months of intervention | The difference of frequency and quality of sleep between baseline and after 10 months of intervention will be calculated. |
| Change from baseline in the academic performance score at 10 months | baseline and 10-months of intervention | Academic achievement and school attendance will be evaluated in order to create an academic performance score. Difference in this score between baseline and after 10 months of intervention will be calculated. |
| Change from baseline in the body image score at 10 months | baseline and 10-months of intervention | The self-assessment of the nine-silhouettes scale proposed by Stunkard et al. will be used to create the body image score. Difference in this score between baseline and after 10 months of intervention will be calculated. |
| Change from baseline in the healthy eating score at 10 months | baseline and 10-months of intervention | Healthy eating score will be estimated using two items related to healthy foods (fruits and vegetables) and three unhealthy (soft drinks, savory and sweets) foods in a typical week. Points from this list will be estimated at baseline and after 10 months of intervention. |
Other
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline in the score of intrapersonal screen time use mediators at 10 months | baseline and 10-months of intervention | Points obtained from a list of attitude (3 items), expectations (12 items) and self-efficacy (11 items) variables will be estimated at baseline and after 10 months of intervention. |
| Change from baseline in the score of interpersonal screen time use mediators at 10 months | baseline and 10-months of intervention | Points obtained from a list of family and friends modelling (4 items), social support (4 items), family beliefs (3 items) and family norms (6 items) variables will be estimated at baseline and after 10 months of intervention |
| Change from baseline in the score of environmental PA mediators at 10 months | baseline and 10-months of intervention | Points obtained from a list of school environment (4 items) scale will be estimated at baseline and after 10 months of intervention. |
| Change from baseline in the score of interpersonal PA mediators at 10 months | baseline and 10-months of intervention | Points obtained from a list of parental support (7 items), friends support (6 items), physical education teachers (6 items) and general teachers support (6 items) scale will be estimated at baseline and after 4 months of intervention. |
| Change from baseline in the score of intrapersonal PA mediators at 10 months | baseline and 10-months of intervention | Points obtained from a list of attitude (5 items), expectations (10 items) and self-efficacy (12 items) variables will be estimated at baseline and after 4 months of intervention. |
Countries
Brazil
Contacts
Primary ContactKelly S Silva, Professor
Backup ContactJaqueline A Silva, Master
Outcome results
None listed