Obesity
Conditions
Interventions
The present study will be a cluster-randomized controlled trial conducted in schools. Six public schools will be selected and randomly divided into: 1) active lessons group (two schools), 2) movement-
80 per group). Active lessons group: The four teachers (two from each school) randomly selected to be part of the active lessons group will be invited to participate in a training process to explain t
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I03.350
Sponsors
Departamento de Educação Física - Universidade Federal de Sergipe
Departamento de Educação Física - Universidade Federal de Sergipe
Eligibility
Age
7 Years to 9 Years
Inclusion criteria
Inclusion criteria: Children aged between 7 and 9 years old; both sexes; without any restrictions preventing them from performing postural transitions; and who return the informed consent form properly signed by their parents or guardians
Exclusion criteria
Exclusion criteria: Students who stop attending school for any reason; students who express a desire to leave the study
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cognition: Three tests will be administered: a) Go/No Go, which consists of the graphical presentation of various traffic light-like figures, where the colors green and red alternate randomly. When the figure with a green light appears, the child must press a computer key. When the figure with a red light appears, the child must wait for the figure to change without pressing the key. The goal of this test is primarily to assess response inhibition; b) Visual search, a test that presents various figures with several randomly distributed letter Ts. The child is instructed to press a computer key whenever the letter T appears in the normal position (not inverted) and in red, even if there is only one such letter among many others. If the figure shows the letter T in an inverted position or in another color (yellow), the child must wait for the figure to change without pressing the key. This test assesses reaction time, response inhibition, working memory, visual discrimination, and object constancy; c) Mental rotation, whose objective is to find, among two alternatives, the figure that is identical to the presented one, but with the alternatives rotated either to the right or to the left. The child is instructed to point to the evaluator which figure is the same. The test assesses visual discrimination and spatial reasoning. The tests will be administered by a psychology professional. The total number of correct answers and the time taken to complete each test (in milliseconds) will be considered as indicators. Improvements of around 10% are expected in both experimental groups, with no difference between them;Academic performance: The evaluation of academic performance will be carried out using standardized tests developed by the pedagogical team. The tests will cover the mathematical knowledge developed throughout the project and will be administered at the beginning, middle, and end of the school year. Improvements of around 10% are expected in both experimental gro | — |
Secondary
| Measure | Time frame |
|---|---|
| Physical activity level will be measured both subjectively and objectively. For subjective evaluation, the Web CAAFE questionnaire (http://www.caafe.ufsc.br/portal), which is properly validated for Brazilian children, will be used. The children will be taken out of the classroom and directed to a quiet room for the evaluation, always accompanied by a project intern. The questionnaire is interactive, and the child completes it on their own in about 10-15 minutes. The objective evaluation will be conducted using the Omron HJA-310 pedometer. The child will receive the device, attached to an elastic belt, along with instructions for use. The parents will also be informed and given instructions on how to use the device. The pedometers must be worn for seven days, most of the day, and should only be removed for water activities (such as bathing) and during sleep. The number of steps taken will be recorded by the device reader each day. Improvements of around 10% are expected in both experimental groups, with no difference between them;Students' perception of the classes and the school will be assessed before, during, and after the intervention. Information will be collected through a structured questionnaire designed for this purpose. At the initial stage, information related to expectations for the project will be gathered. At the final stage, students will be asked about their personal experiences in the intervention groups. Improvements of around 10% are expected in both experimental groups, with no difference between them | — |
Countries
Brazil
Contacts
Public ContactDanilo Silva
Departamento de Educação Física - Universidade Federal de Sergipe
Outcome results
None listed