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The Effect of Increased Physical Activity on Adolescents' Health and Academic Performance: The School in Motion Study

A Cluster-randomized Controlled Trial Evaluating the Effect of Increased Physical Education and Physical Activity on Adolescents' Physical and Mental Health, Academic Performance and Learning Environment

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03817047
Acronym
ScIM
Enrollment
2045
Registered
2019-01-25
Start date
2017-04-03
Completion date
2018-06-22
Last updated
2019-01-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Academic Achievement, Mental Health, Physical Activity

Keywords

Adolescents, Physical activity, Physical fitness, Academic performance, Cluster RCT, Mental health, Secondary school, Physical education, Physical active educational lessons, Accelerometer

Brief summary

This study evaluates the effect of 120 minutes extra of physical education (PE) or physical activity (PA) on adolescents' physical health, mental health, academic performance and learning environment. This is a cluster-randomized controlled trial with three arms, where the participants in two of the groups will have different models of increased PE/PA during the school week, whereas the participants in the third arm is the control group including current practice.

Detailed description

This is a school-based, three-arm cluster randomized controlled trial (RCT) recruiting adolescents from secondary schools in Norway. Adolescents (aged 14-15 years) were the unit of analysis, and schools (clusters) were randomly assigned to one of three conditions: 1. the physical active learning group (PAL-group), where the schools each week include one additional physical education (PE) lesson, 30 minutes of physical active learning, and 30 minutes of physical activity (intervention condition); 2. the don't worry - be happy group (DWBH-group), where the schools include one new activity class (60 minutes: Be Happy class) and one additional PE-class (60 minutes: Don't Worry class) per week (intervention condition);or 3. current practice (control condition). An identical set of outcome measures are taken from all participants at baseline, and approximately 12 months after the baseline measures, when the participants were at the end of year 9

Interventions

Physical education (60 minutes): In addition to the ordinary PE-lessons. The pedagogical activities taught in this lesson should be in line with the curriculum of 9th grade and led by the PE-teacher. In the Don't worry - be happy intervention this class was also organized by the students. The students practiced their Be Happy-activities, or they introduced their class peers to their Be Happy-activity. A PE-teacher was present to support the students if necessary.

The curriculum of the subjects (i.e. maths, English, Norwegian) were taught in a physically active manner. The lesson should last 30 minutes and be led by the teacher of the current subject.

BEHAVIORALPhysical activity

Without a connection to any specific subject Physical activity should be performed as 30 minutes a week. There are no specific aims to be taught in this lesson, but physical activities that stimulates mastery, joy and well-being should be in focus.

BEHAVIORALBe happy

The Be Happy classes were self-organized activity groups of at least three students, developed according to activity preferences across regular classes. The Be Happy groups practiced traditional sports and physical activities, lifestyle sports, dancing, out-door recreation, drama etc. - inside or outside school.

Sponsors

University of Stavanger
CollaboratorOTHER
University of Agder
CollaboratorOTHER
Western Norway University of Applied Sciences
CollaboratorOTHER
Norwegian School of Sport Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

This is a cluster-randomized trial with three parallel arms

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Subjects enrolled in 9th grade

Exclusion criteria

* None

Design outcomes

Primary

MeasureTime frameDescription
Mean physical activity levelMeasured baseline and after 12 monthsThe participants mean physical activity level measured by accelerometers

Secondary

MeasureTime frameDescription
School environmentMeasured baseline and after 12 monthsLearning environment at school in general is self-reported in a questionnaire. It consist of three separate questions, and the questions are answered on a 7-point likert scale ranging from totally disagree to totally agree. A mean score from the three questions will be made, and a higher score indicates better school environment.
Overall psychosocial problems and strengthsMeasured baseline and after 12 monthsAssessed with the Strength and Difficulties Questionnaire (SDQ). This is a short screening instrument consisting of 25 items equally divided across five scales measuring emotional symptoms, conduct problems, hyperactivity-inattention, peer problems, and prosocial behavior. Each statement is answered as Not true, Somewhat true and Certainly true. Some questions have reversed form, which is reversed in the scoring of the instrument. Replies were scored from 0 to 2, and the subscales are summed to a score ranging from 0-10 for each subscale. Added together, the first four scores generate a total difficulties score, ranging from 0 to 40. Higher scores indicate more problems.
Adolescents' subjective health and well-beingMeasured baseline and after 12 monthsAdolescent's subjective health and well-being is assessed using the Kidscreen-27 questionnaire. The instrument consists of 27 items covering the following five quality of life dimensions: 1) physical well-being (5 items), 2) psychological well-being (7 items), 3) parents/guardians relations & autonomy (7 items), 4) social support & peers (4 items), and 5) school environment (5 items). The questions are answered on a 5-point likert scale. Scores can be created for each of the five dimensions. The methodology given in the developers manual will be used to obtain the T-scores; mean (±SD) scores of 50 ± 10 define normality for children and adolescents aged 8-18 years across Europe. Higher scores indicate a better health-related quality of life.
The adolescents domain specific self-evaluation of competence or adequacyMeasured baseline and after 12 monthsAssessed through Harter's Self-perception Profile for Adolescents (SPPA). The instrument consists of seven subscales covering the following domains: 1) scholastic competence, 2) social competence, 3) athletic competence, 4) physical appearance, 5) job competence, 6) close friendship, and 7) romantic appeal. Each subscale contains four items, each having four options: 1 (Describes me very poorly), 2 (Describes me fairly poorly), 3 (Describes me fairly well), and 4 (Describes me very well), providing a mean score of perceived competence in that area, ranging from 1 (lowest level of self-esteem) to 4 (highest level of self-esteem).
Symptoms of anxiety and depressionMeasured baseline and after 12 monthsAssessed by the short version of Hopkins Symptom Checklist (HSCL-10). HSCL-10 consists of 10 symptoms or problems that people sometimes have in which adolescents answered how much the symptoms have bothered or distressed them during the last week. All 10 questions have 4 response categories: 'Not at all', 'A little', 'Quite a bit' and 'Extremely'. The responses are summarized across all items and the mean score is used as a measure of psychological distress. Higher values indicates higher psychological distress.
Learning environment in the classroomMeasured baseline and after 12 monthsThe Classroom Climate Scale is used to assess learning environment. This instrument consist of 22 questions related to intrinsic and extrinsic motivation, anticipation and teacher-student relations. All questions are answered on a four-point scale: Strongly agree, Somewhat agree, Somewhat disagree, Strongly disagree. All points are summed to a total score. Higher scores indicates higher classroom environment.
Time spent in moderate-to-vigorous physical activity (MVPA)Measured baseline and after 12 monthsMean minutes spent in MVPA per day
Time spent sedentaryMeasured baseline and after 12 monthsMean minutes spent sedentary each day, measured both objectively using accelerometers
Sedentary behaviourMeasured baseline and after 12 monthsSelf-reported in a questionnaire. There are questions related to minutes spent in front of a screen. The answers are categorized into seven alternatives ranging from No time at all to More than 6 hours per day. There are also questions about which screen activity they perform. The answers are categorized into six alternatives ranging from No time at all to More than 3 hours per day. There are also questions about time spent doing homework. The answers are categorized into nine alternatives ranging from No time at all to More than 7 hours per day.
Upper limb strengthMeasured baseline and after 12 monthsHandgrip strength using a hand dynamometer. The participants will use the dominant hand, with the arm completely extended and squeeze the dynamometer with maximum isometric effort, for about 2-3 seconds.
Explosive strength in the lower bodyMeasured baseline and after 12 monthsStanding broad jump. The participants will stand behind a line with feet slightly apart. They will be instructed to perform a two-foot take-off and landing, and to jump as far as possible, landing on both feet without falling backwards. The distance from the take-off line to the nearest point of contact on the landing (back of the heels) will be measured, and the better of two attempts will be used for analyses.
Abdominal muscle enduranceMeasured baseline and after 12 monthsAbdominal muscular endurance will be measured by a sit-up test. The participant will start in a lying position with hands clasped behind the neck, knees bent at a 45° angle with the heels and feet flat on the floor and held down by the tester. The subject then rise to a position with the elbows pointed forward until they touched the knees. The total number of correctly performed and completed sit-ups within 30 seconds is counted.
Cardiorespiratory fitnessMeasured baseline and after 12 monthsIntermittent running test. Participants run for 10 minutes, and the distance covered (in meters) is recorded.
Academic performance in readingMeasured baseline and after 9 monthsSpecific standardized Norwegian National tests in reading.The test is designed and administrated by The Norwegian Directorate for Education and Training.
Academic performance in numeracyMeasured baseline and after 9 monthsSpecific standardized Norwegian National tests in numeracy. The test is designed and administrated by The Norwegian Directorate for Education and Training.

Other

MeasureTime frameDescription
Waist circumferenceMeasured baseline and after 12 monthsMeasured with an ergonomic circumference measuring tape. The measure is taken at the midway between the lower rib and iliac crest with the individual's abdomen relaxed at the end of a gentle expiration.
Satisfaction of basic psychological needsMeasured baseline and after 12 monthsAssessed by Basic Psychological Needs in Exercise Scale (BPNES). BPNES consist of 12 questions that are answered on a 7-point Likert scale (ranging from 1 (Certainly untrue) to 7 (Certainly true)). The responses are summarized and a mean score is made. Higher values indicates higher satisfaction.
Emotional responses to physical educationMeasured baseline and after 12 monthsAssessed by the Basic Emotions Trait Test (BETT). BETT consists of 9 statements that will measure positive, negative and eudaimonic emotions. Participants respond on a 7-point Likert scale ranging from 1 (Never) to 7 (Always). The responses are summarized across the three sub-scales and a mean score for each sub-scale is made. Higher values indicates higher emotions.
Eagerness to join physical educationMeasured baseline and after 12 monthsAssessed by Eagerness for Physical Activity Scale (EPAS). EPAS is a one-dimensional scale, consisting of 12 statements that affect emotional expressions and cognitive assessments as well as future physical activity behavior. The participants respond to the statements on a scale ranging from 1 (completely disagree) to 7 (completely agree). The responses are summarized and a mean score is made. Higher values indicates higher eagerness.
Body mass indexMeasured baseline and after 12 monthsBody mass (weight; 0.1 kg) is measured using an electronic scale with participants wearing light clothing. Stature (height; 0.1 cm) is measured using a portable stadiometer. The individual face forward, with shoes removed. Body mass index is calculated as body weight (kg) divided by the height squared (m2).

Countries

Norway

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026