Reconstructing Schoolyards With Greenery to Increase Schoolchildren's Physical Activity and Mitigate Climate Changes
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age8-13
SponsorKarolinska Institutet
About this trial
By reconstructing schoolyards with greenery, physical activity levels among children can be increased at the population level and also mitigate health and environmental risks resulting from rising climate changes in urban areas.
The overarching purpose of the proposed project is to:
i. increase physical activity levels among school-aged children, independent of socioeconomic factors, and thus affect short- and long-term health outcomes on a population level ii. establish an evidence-based bottom-up approach for schoolyard reconstructions iii. evaluate the cost-effectiveness of schoolyard reconstructions with greening on health outcomes and its environmental impact
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Enrolled in participating school
8-13 years old at the time of study start
In 2nd or 5th grade
Parents signed informed consent
Disqualifiers
Not enrolled in participating school
Outside 8-13 years old age range and/or not in 2nd or 5th grade
Parents declined informed consent
Trial design
Design model
Sequential
Treatments tested in this trial
Schoolyard reconstruction
BehavioralThe current study will be designed as a quasi-experimental stepped-wedge intervention where schools undertaking schoolyard reconstruction will act as both control and intervention schools. By using the stepped-wedge study design, with internal control schools, will enable the control for the seasonal variation in children's physical activity levels and for the age-related decline in physical activity throughout childhood. That is, without control schools we would be unable to attribute a change in physical activity to the reconstruction of the schoolyards - as any difference in physical activity before and after the schoolyard reconstruction in the intervention group could be explained by the natural change in physical activity over time.
Treatment groups
3,600 Participants
are divided into 1 treatment groupGroup A: Schoolyard reconstructionExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Change in physical activity levels in children
Physical activity levels in terms of daily minutes in moderate to vigorous physical activity, total physical activity and daily steps measured objectively by Actigraph GT3X+ accelerometers
Time frame
12 months change from baseline (in May before schoolyard reconstruction) to 1-year follow-up (in May 1 year later) in physical activity levelsSecondary outcomes
1
Change in musculoskeletal fitness in children
Musculoskeletal fitness, in terms of handgrip strength ,will be measured by an analogue dynamometer (TKK 5825, Grip-A, Takei, Tokyo, Japan).
Time frame
12 months change from baseline (in May before schoolyard reconstruction) to 1-year follow-up (in May 1 year later) in musculoskeletal fitness (handgrip strength)2
Change in weight in children
Weight (in kilograms) will be measured with validated scales
Time frame
12 months change from baseline (in May before schoolyard reconstruction) to 1-year follow-up (in May 1 year later) in weight3
Change in height in children
Height (in centimeters) will be measured with validated stadiometers
Time frame
12 months change from baseline (in May before schoolyard reconstruction) to 1-year follow-up (in May 1 year later) in height4
Change in blood pressure in children
Systolic and diastolic blood pressure will be measured three times (and we will use the mean value of the two last measures), in the seated position after a five-minutes rest, using a medically approved automatic digital blood pressure monitor
Time frame
12 months change from baseline (in May before schoolyard reconstruction) to 1-year follow-up (in May 1 year later) in blood pressureSponsors and contacts
Click on the lead sponsor to view all of their trials.
Karolinska Institutet
Lead sponsor
The City of Stockholm
Collaborator
Cancerfonden
Collaborator
Arwidssonstiftelsen
Collaborator
Source ClinicalTrials.gov