Physical activity and sedentary behaviour Not Applicable
Conditions
Interventions
The design is a cluster-randomised parallel group trial, with school as the unit of randomization, with a no-intervention (standard curriculum/teaching as usual) control group and one intervention arm
Sponsors
University of Helsinki (Finland)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: The study will comprise 6 school units in Southern Finland. In the vocational schools within the study region that meet the eligibility criteria, we will invite an equal number of student groups, with the requirement of having the Health Education course catered in the first or second study period after baseline measurement, or a possibility of locating the six Let’s Move It (LMI) student sessions elsewhere in the curriculum. Willing students and teachers are included in the trial. 1. Classes of vocational students in the study year 1 or 2 that can be given 6 sessions of LMI sessions as part of standard curriculum 2. Students in the class and/or attending the class teaching sessions 3. Core class or vocational class teachers whose classes involve a large amount of sitting or static/burdening work positions 4. All students of the included classes participate in the LMI sessions, i.e., the voluntariness involves participation in the research measurements 5. Students of all ages will be invited to take part in the study, but subgroup analyses will be run for those aged 15-19 years at baseline
Exclusion criteria
Exclusion criteria: Classes: 1. Insufficient knowledge of the Finnish language to take part in group interventions and use written materials (i.e., preparatory classes for new immigrants) 2. Classes comprised primarily of adult-age students 3. Classes catering for students with severe physical and mental disabilities Students: 1. Physical condition hindering taking part in PA or bioimpedance measurement (e.g., pregnancy)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes in students' physical activity and sedentary behaviour over two months (post-intervention) and 14 months (long-term follow-up), specifically in the following co-primary outcome measures: 1. Moderate-to-vigorous physical activity as measured by 7-day accelerometry 2. Proportion of (and breaks in) passive time (sitting and lying) as measured by 7-day accelerometry 3. Step count, as measured by 7-day accelerometry 4. Self-reported physical activity (as measured by questionnaire) | — |
Secondary
| Measure | Time frame |
|---|---|
| Students: fat mass and muscle mass (as measured by bioimpedance), BMI, self-reported fitness, symptoms (e.g. neck and shoulder pain), and hypothesized mediators (e.g. autonomous physical activity motivation, intention, outcome expectations, behaviour change technique use), observed teacher sitting reduction behaviours, symptoms, etc). Teachers: self-reported sitting reduction activities, hypothesized mediators for behaviour change (e.g., motivation, outcome expectancies, habit, behaviour change technique use), observed student behaviour, support from organization, etc). | — |
Countries
Finland
Contacts
Public ContactElisa Kaaja
Outcome results
None listed