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Related Concept Videos

Obesity01:24

Obesity

The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...
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Longitudinal Research

Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...

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Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
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Published on: July 29, 2020

Does school-based physical activity decrease overweight and obesity in children aged 6-9 years? A two-year

Erik Sigmund1, Walid El Ansari, Dagmar Sigmundová

  • 1Center for Kinanthropology Research, Institute of Active Lifestyle, Palacky University in Olomouc, Olomouc, Czech Republic. erik.sigmund@upol.cz

BMC Public Health
|August 16, 2012
PubMed
Summary

Augmenting physical activity (PA) in schools significantly increased daily PA in children aged 6-9. This intervention reduced overweight and obesity rates by nearly three times compared to controls, highlighting the importance of school-based PA programs.

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Area of Science:

  • Pediatric Health
  • Public Health
  • Exercise Science

Background:

  • Childhood obesity is a global health concern, prompting various school-based interventions.
  • This study investigated the impact of enhanced physical activity (PA) in schools on daily PA levels and overweight/obesity rates in 6-9-year-old children.

Purpose of the Study:

  • To assess the effectiveness of school-based physical activity augmentation in increasing daily PA.
  • To determine the impact of increased school-based PA on reducing overweight and obesity prevalence in young children.

Main Methods:

  • Objective monitoring of PA (step counts, activity energy expenditure) in 176 children (6-9 years) over two years.
  • Comparison between two intervention schools and two control schools with varying PA environments.
  • Statistical analyses included ANOVA for PA measures and logistic regression for overweight/obesity occurrence.

Main Results:

  • Intervention children showed significant increases in daily school-day PA (steps and AEE) compared to controls.
  • Increased PA in intervention schools helped maintain PA levels despite increasing age and positively impacted leisure and weekend PA.
  • One year post-intervention, overweight/obesity odds were nearly three times lower in intervention children, decreasing further with intervention duration.

Conclusions:

  • School-based physical activity programs, integrated into the curriculum and environment, are crucial for reducing childhood overweight and obesity.
  • Active school environments, including dedicated spaces and opportunities for movement, enhance the effectiveness of PA interventions.
  • Sustained engagement in school-based PA demonstrates a vital role in combating obesity among young pupils.