Secondary schoolgirls have the most unhealthy profile regarding physical activity and sedentary behaviour of all age groups. Since both behaviours independently contribute to various health outcomes, an effective intervention to promote physical activity and to reduce sedentary behaviour needs to be developed. Many interventions fail to induce changes in health behaviour, as they often use a top-down approach with limited input from the end-users (i.e. the secondary schoolgirls) of the intervention programmes. This project uses a participatory health research approach by actively involving the girls in the entire research process. A co-creation group was set up per intervention school (n=3), including girls and a researcher which co-created a school-specific intervention, tailored to the needs and interests of those girls. The effect of participatory process were evaluated via a clustered randomized controlled trial using an intervention and control condition and a pre- and post-test design. Effects on physical activity and related determinants (e.g. self-efficacy, attitude, etcetera) were evaluated. The hypothesis was that girls from the intervention condition would improve their physical activity levels and related determinants compared to no changes among girls from the control schools. The process was evaluated as well using focus group research and the hypothesis was that girls who participate in the co-creation groups would be positive about the process and will feel empowered.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
196
A working group of girls and researcher co-created a school-specific intervention to promote physical activity
Increase in the mean overall physical activity level of adolescent girls
Overall physical activity (expressed in average minutes per day) is calculated by summing active transportation (i.e. minutes spent in active transportation to school and in leisure time per day) and sport participation (i.e. minutes spent in physical education, extra-curricular sports or physical activities at school and during leisure time per day), measured by the reliable and valid Flemish Physical Activity Questionnaire.
Time frame: one schoolyear
Increase in the mean value of determinants related to physical activity
Three individual (i.e. self-efficacy, perceived benefits and perceived barriers) and six sociocultural determinants (i.e. peer and parental modelling, peer and parental co-participation and peer and parental encouragement) were assessed using questions from previous studies examining adolescents' health behaviour, of which the predictive validity and reliability have been demonstrated previously. Three school-related determinants (i.e. relationship with classmates, involvement in organising school activities and relationship with teachers) were assessed using items from the Flemish Health Behaviour in School-aged Children questionnaire.
Time frame: one schoolyear
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