Physical Activity in Schools After the Reform

Overweight Clinical Trial

— PHASAR  

Official title:

Physical Activity in Schools After the Reform

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT03946241
• Other study ID #: 72682
• Secondary ID: 115606
• Status: Active, not recruiting
• Start date: August 22, 2017
• Est. completion date: June 1, 2022

Study information

• Verified date: May 2022
• Source: University of Southern Denmark
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

In 2014 the Danish Government introduced a wide-ranging school reform that applies to all public schools in Denmark. In a physical activity promotion perspective, a distinctive feature of the school reform is that it has become mandatory to integrate an average of 45 minutes of daily physical activity in the regular school day. The overarching objective of the PHASAR study is to evaluate the implementation of this ambitious policy-driven physical activity promotion initiative and its potential effect on physical activity and overweight. The PHASAR study provides a rare opportunity to evaluate the effectiveness of a nation-wide policy-driven school-based physical activity promotion initiative.

Description:

In 2014 the Danish Government introduced a wide-ranging school reform that applies to all public schools in Denmark. The reform involved changes in several aspects of the school structure and content. In a physical activity promotion perspective, a distinctive feature of the school reform is that it has become mandatory to integrate an average of 45 minutes of daily physical activity during the regular school day. The overarching objective of the PHASAR study is to evaluate the implementation of this ambitious policy-driven physical activity promotion initiative and the possible effect on children's level of physical activity and overweight. Moreover, by applying improved accelerometry technology, the study aims to provide a detailed characterization of physical activity during the children's entire day including the school day. The evaluation is divided into a quantitative effect evaluation and a combined quantitative and qualitative process evaluation. A total of 31 schools were enrolled and 2,683 pairs of accelerometers were handed out to school-aged children from 1st to 9th grade in the PHASAR study during the 2017/18 school year. The objectively measured physical activity data will be compared to repeated cross-sectional data collected in four historical school-based studies from 1998-2012. Body mass index data from 2012-2018 will be collected from The Child Database, which includes repeated cross-sectional assessments on approximately 100,000 children annually. In the absence of a control group, interrupted time-series analysis will be used to evaluate pre- and post-reform physical activity and body mass index levels and trends. A characterization of the school environment relevant for physical activity promotion on a political, environmental, organizational and individual level, as well as school implementation processes will be conducted to evaluate the implementation process. Data will be collected using interviews, surveys, document analyses and observations. The PHASAR study provides a rare opportunity to evaluate the effectiveness of a nation-wide policy-driven school-based physical activity promotion initiative. The use of objectively measured pre- and post-reform physical activity and body mass index data combined with a characterization of the school implementation processes regarding the promotion of physical activity will provide a comprehensive source of information needed to evaluate the school reform.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 5200
• Est. completion date: June 1, 2022
• Est. primary completion date: December 2, 2019
• Accepts healthy volunteers: No
• Gender: All
• Age group: 6 Years to 17 Years

Eligibility

Inclusion criteria:

Pre-reform study population:

• School children who been included in one of the four pre-reform studies.

Post-reform study population:

• Children attended one of the public schools and age groups that had already been included in one of the four pre-reform studies.

Exclusion criteria:

• School children that suffers from physical disabilities or injuries preventing physical activity.

Related Conditions & MeSH terms

• Overweight
• Physical Activity
• Physical Inactivity

Locations

Country	Name	City	State
Denmark	Department of Sports Science and Clinical Biomechanics, University of Southern Denmark	Odense

Sponsors (3)

Lead Sponsor	Collaborator
University of Southern Denmark	TrygFonden, Denmark, University of Cambridge

Country where clinical trial is conducted

Denmark, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in levels of school time physical activity, reported as time spent moving, in a representative sample of school children before and after the school reform.	Objectively measured physical activity data are obtained via accelerometers mounted on the hip of the school children for a representative number of consecutive days. The school children's time spent moving will be longitudinally analysed on the school level (not class or individual level).	Pre-reform data have been collected between 1998 and 2012. Post-reform data have been collected during the school year 2017 to 2018.
Secondary	Change in school children's BMI from the majority of all Danish public schools before, during, and after implementing the school reform.	Height and weight are obtained from the Child Database (Børnedatabasen), which is based on data from the mandatory examinations in schools by school nurses on three occasions during children's years in public school. The first measurement is conducted at the age of 6 to 7 years of age (in case of several measurements, the first was registered). The second measurement is conducted when children were between 9 and 13 years old (in case of several measurements, the measurement closest to the age of 11 was registered). The third measurement is conducted when children were 14 or 15 years old (in case of several measurements, the last was registered).	National BMI data have been obtained annually from 2011 and onwards. Thus, data from 2011 till 2018 will be utilized for this outcome.
Secondary	Changes in BMI among school children before and after implementing the school reform.	School levels of changes in BMI will be compared in the pre- and post-reform study populations and analysed according to school levels of physical activity (child time spent moving).	Data will be obtained from the pre-reform research studies in the years leading up to the school reform and the data collected during the school years 2017/18 and 2018/19.
Secondary	Changes in waist-to-height ratio among school children before and after implementing the school reform.	School levels of changes in waist-to-height ratio will be compared in the pre- and post-reform study populations (were available) and analysed according to school levels of physical activity (child time spent moving).	Data will be obtained from the pre-reform research studies in the years leading up to the school reform and the data collected during the school years 2017/18 and 2018/19.
Secondary	Change in time spent in moderate to vigorous physical activity in school children during school time, leisure time and total time from before till after the school reform.	In order to investigate the effect of the school reform on health-related physical activity, change in time spent in moderate to vigorous physical activity (assessed by hip worn accelerometer) for school children before and after the school reform will the analysed.	Data will be obtained from the pre-reform research studies in the years leading up to the school reform and the data collected during the school years 2017/18 and 2018/19.
Secondary	The total amount of physical activity in school children during school time, leisure time and total time before and after the school reform.	The total amount of physical activity in school children during school time, leisure time and total time assessed using hip worn accelerometer will be reported as counts per minute for school children before and after the school reform.	Data will be obtained from the pre-reform research studies in the years leading up to the school reform and the data collected during the school years 2017/18 and 2018/19.