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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT04898439
Other study ID # Green_School
Secondary ID
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date March 15, 2022
Est. completion date April 1, 2023

Study information

Verified date March 2022
Source Hasselt University
Contact Michelle Plusquin, PhD
Phone +3211268289
Email michelle.plusquin@uhasselt.Be
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This project aims to investigate the health effects of making schools greener and more biodiverse. We will mainly focus on cognitive effects, well-being, and BMI. The research hypothesis is that greening schools positively influences the health of children through more exercise and cleaner air.


Description:

Spending time in nature has been associated with improved physical and mental health and well-being. Developing nature-based health-promoting interventions such as providing more nature in schools to improve children's well-being will lead to benefits for society in our rapidly urbanizing world. Although the benefits of exposure to nature have been demonstrated, knowledge of integrating exposure to nature into public health guidelines is scarce. The latter requires an interdisciplinary approach that integrates the impact of nature-based interventions both on health and on the cost-effectiveness of interventions. Little is known about the health effect of greening and, in particular, increasing biodiversity in schools and we want to investigate further with this study. This project, therefore, aims to investigate the health effects of greening primary schools and increasing biodiversity and will mainly focus on the effects on cognition, well-being, and BMI. For this, all children from 4th to 6th grade in the participating schools will be invited to participate in this study (Belgium). This study comprises control schools and intervention schools, the schools are examined before the greening and after the greening. When the informed consent form is signed by the parents, they complete a questionnaire that assesses the child's diet, physical activity, and general questions. A urine sample will be taken for the determination of black carbon particles. The child will also perform computer tests measuring different aspects of "cognition". During these tests, we will also look at the eye movements that play an important role in the cognitive ability of the child. To get an idea of a possible effect on BMI, height and weight will be measured. The child fills in a welfare questionnaire and a questionnaire about the perception of nature itself.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 200
Est. completion date April 1, 2023
Est. primary completion date December 1, 2022
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 9 Years to 12 Years
Eligibility Inclusion Criteria: - Being in 4th, 5th, or 6th grade - Signed informed consent form by a legal representative Exclusion Criteria: - No knowledge of dutch

Study Design


Intervention

Other:
greening of the school environment
The school will be greened and biodiversity will be increased. This will be done on the playground and area around the school. Special needs corners for playing, relaxing or gardening will be installed.

Locations

Country Name City State
Belgium Hasselt University Hasselt Limburg

Sponsors (1)

Lead Sponsor Collaborator
Hasselt University

Country where clinical trial is conducted

Belgium, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change in cognitive function We measure the cognitive function of children by means of a battery of tests including: stroop test, Continuous Performance, digit span, digit signal and digit selection. We combine the computer tests with eye tracking to provide information about saccadic gain during the tests. The computer tests provide data on how much time per reaction (msec) was needed or how many digits could be remembered. At the baseline, after 6 months and through study completion, an average of 1 year
Primary Change in wellbeing We measure the emotional wellbeing by means of the Kids screen test that builds a score of 27 points. at the baseline, after 6 months and through study completion, an average of 1 year
Primary Change in anthropometry We measure BMI and waist/hip circumference. They are expressed as kg/m2 and cm. at the baseline, after 6 months and through study completion, an average of 1 year
Primary Change in black carbon levels We measure urinary black carbon levels. They are expressed as particles per mm2. at the baseline, after 6 months and through study completion, an average of 1 year
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