Physical Activiy Intervention Programm

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the effectiveness of a recreational physical activity intervention for reducing the prevalence of overweight/obesity and other cardiovascular risk factors

Detailed Description
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A greater intensity of the intervention, and a longer weekly duration that extends until the weekend, could improve the efficiency in obesity.

Official Title
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Effectiveness of a Physical Activity Intervention on the Overweight and Obesity of Chilean Schoolchildren

Conditions
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Fitness, Physical Activity, Overweight and Obesity

Intervention / Treatment
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* Behavioral: Phisical activity intervention


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: The parents of the children will be informed about the objectives and methods of the study, and will give their written consent to the participation of the children. Similarly, the study will introduce children from classroom to class and their oral consent will be obtained Exclusion Criteria: Participating children will be free from serious learning difficulties, or physical or mental disorders, that could prevent participation in scheduled physical activities.

Ages Eligible for Study
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Minimum Age: 4 Years
Maximum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Physical activity<br>In the program we will perform a recreational physical activity intervention during one year that include standardized recreative and non competitive activities conducted by sports instructors | Behavioral: Phisical activity intervention<br>* The prevalence of overweight in chilean children in the among the highest in the world and increasing quickly. The investigators recently evaluated an after-school program of recreational physical activity to control overweight, obesity and other cardiovascular risk factors in primary school children Temuco. This program reduced adiposity and increased the fitness.<br>|
| No Intervention: Physical activity control<br>This group will not participate in the intervention | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Aerobic Capacity | By using 20-m shuttle run test, which is validated to measure maximal aerobic capacity in children from 4 years. | 1 year | 
| Muscle Strength | By using standing long jump test | 1 year | 
| Flexibility | By using the sit and reach test | 1 year | 
| Speed-agility | By using 4x10 meters shuttle run test | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Health-related quality of life | By using the instrument for assessing Health-Related Quality of Life for children and adolescents aged 4-17 years (KINDL), in its version validated in Spanish. The KINDLR questionnaire consists of 24 Likert-scaled items associated with six dimensions: physical well-being, emotional well-being, self-esteem, family, friends and everyday functioning (school or nursery school/kindergarten). The sub-scales of these six dimensions can be combined to produce a total score. the score ranges from 0 to 100. Higher scores indicate better health-related quality of life. | 1 year |