Impact of a School-based Intervention on Physical Activity, Fitness, and Sports Participation in Chilean Children: a Single-arm Cluster Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 209
- 试验地点
- 1
- 主要终点
- Change from Baseline in the levels of physical activity.
研究概览
简要总结
Study Rationale:
Currently, a significant proportion of children in Chile do not meet recommended physical activity levels, which may adversely affect their health and development. The school environment provides an ideal setting to promote healthy habits. This study was designed to evaluate whether a school-based program incorporating physical activity, sports, and health education can improve physical fitness and increase the time children dedicate to physical activity practice.
Objective:
The primary objective of this study is to evaluate the impact of a two-year school-based intervention on physical activity levels, muscular fitness (measured by upper body, lower body, and abdominal muscular strength), and sports participation among Chilean schoolchildren.
How the study works:
This is a single-arm cluster intervention study incorporating a pre-post design. Participating schools were allocated in a specialized program focused on physical activity and the promotion of sports practice throughout two school years.
What was measured:
At baseline and after the two-year intervention, the following outcomes were assessed:
Physical Activity Levels: Measured via accelerometry; Muscular Fitness: Assessed through muscular strength tests, including upper limb strength (handgrip strength using a dynamometer), lower limb strength (standing long jump test), and abdominal strength (60-second curl-up test).
Sports Participation: Evaluated through self-reports of involvement in organized sports.
Researchers compared pre- and post-intervention data between the intervention to determine if children in the special program showed significantly greater improvements compared to those in the standard routine.
详细描述
This is a a single-arm school-based intervention study designed to address the growing concern about low levels of physical activity among schoolchildren. Currently, a significant proportion of children in Chile do not meet global physical activity recommendations, which can lead to long-term health problems. Since children spend a large part of their day at school, this environment offers a unique opportunity to promote healthier lifestyles and sustainable physical habits.
The main objective of this intervention is to evaluate whether a comprehensive, two-year, multi-component program can effectively increase physical activity levels, improve physical fitness, and encourage sports participation. Unlike traditional programs that focus solely on physical education classes, this study uses a holistic approach based on three main pillars:
Active Recess: Transforming school breaks into opportunities for movement through structured and supervised activities, thus reducing sedentary time during the school day.
Enhanced Physical Education: Implementing high-engagement strategies within the existing curriculum to maximize benefits for students.
Health Education: Involving the entire school community-including students, teachers, and families-through workshops that highlight the importance of an active life and the practice of organized sports.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Prevention
- 盲法
- None (Participant, Investigator)
入排标准
- 年龄范围
- 9 Years 至 11 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Students enrolled in the third grade of elementary school at the selected schools.
- •Minimum enrollment period of at least one year at the current school.
- •Residing in the same municipality where the school is located.
- •Open to all students regardless of migration status.
排除标准
- •Students following any type of restrictive diet related to previously diagnosed chronic diseases.
- •Diagnosis of chronic conditions that require dietary or physical limitations (e.g., diabetes, celiac disease, renal disease, among others).
研究组 & 干预措施
School-based Intervention Program
Students participated in a two-year, multicomponent school-based program designed to promote physical activity and sports participation. The intervention consisted of three core elements: (1) Active Recesses, involving structured and supervised physical activities during school breaks; (2) Enhanced Physical Education, utilizing high-engagement pedagogical strategies; and (3) Health Education workshops for students and the school community focused on active lifestyles. All activities were integrated into the regular school calendar.
干预措施: Active Schools Program (Behavioral)
结局指标
主要结局
Change from Baseline in the levels of physical activity.
时间窗: Baseline (Month 2-3) and End of Intervention (Month 27-30)
Average daily minutes spent at different levels of physical activity, objectively measured using ActiGraph accelerometers worn over 7 consecutive days.
次要结局
- Change from Baseline in Upper Limb Strength(Baseline (Month 2-3) and End of Intervention (Month 27-30))
- Change from Baseline in Sports Participation Frequency(Baseline (Month 2-3) and End of Intervention (Month 27-30))
- Change from Baseline in Sedentary Behavior(Baseline (Month 2-3) and End of Intervention (Month 27-30).)
- Change from Baseline in Lower Limb Strength(Baseline (Month 2-3) and End of Intervention (Month 27-30))
- Change from Baseline in Abdominal Muscle Strength(Baseline (Month 2-3) and End of Intervention (Month 27-30))
研究者
Rubenyta Martins Podmelle
Principal Investigator
Universidad de Santiago de Chile