Related Experiment Video
Updated: May 1, 2026

04:54
Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq
Published on: March 19, 2021
4.9K
Starting the Conversation - A Childhood Obesity Knowledge Project Using an App
Hoa B Appel1, Bu Huang2, Allison Cole3
1Snohomish County YMCA, Minority Achievers Program.
Summary
A pilot study found that a smartphone app intervention improved nutrition and physical activity in high school students, reducing screen time and fast food consumption. This offers a promising approach to combat childhood obesity.
Area of Science:
- Public Health
- Health Informatics
- Adolescent Health
Background:
- Childhood obesity is a significant public health concern.
- Smartphone applications offer a novel platform for health interventions.
Purpose of the Study:
- To pilot a smartphone application intervention for childhood obesity.
- To assess changes in nutritional knowledge, physical activity, and screen time among high school students.
Main Methods:
- A 20-day intervention using a smartphone app or handwritten logs.
- Sample of 118 high school students (grades 9-12) from diverse backgrounds.
- Comparison of physical activity, screen time, and nutritional variables pre- and post-intervention.
Main Results:
- App users consumed less fast food and exercised more than non-app users.
- Screen time decreased, and knowledge of vegetable and water consumption increased in the app group.
- No significant change in Body Mass Index (BMI) was observed.
Conclusions:
- Smartphone interventions show potential for improving adolescent health behaviors.
- Further research is needed on specific ethnic subgroups and targeted interventions for high BMI students.
- Understanding factors influencing physical activity and diet in youth is crucial for addressing obesity.
Related Concept Videos
Obesity
1.5K
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...
1.5K
Models of Health Promotion and Illness Prevention I
2.8K
A model is a theoretical way to understand a concept or an idea. Models can overcome barriers to health regardless of diverse economic and cultural backgrounds. In addition, models make the task easier by providing different ways to approach complex issues. There are two major health promotion models: the health belief model and the health promotion model.
The health belief model (HBM) attempts to predict health-related behavior in specific belief patterns. According to the HBM, a person's...
The health belief model (HBM) attempts to predict health-related behavior in specific belief patterns. According to the HBM, a person's...
2.8K
Health Literacy
4.7K
Health literacy is an individual's or a community's capacity to comprehend, receive, read, and use relevant healthcare information and services. The World Health Organization (WHO, 2018) defines health literacy as the cognitive and social skills that determine the ability of individuals to gain access to, understand, and use information in ways that promote and maintain good health. As a result, the WHO helps individuals manage long-term health concerns, participate in preventative...
4.7K
Levels of Health Promotion and Illness Prevention
12.7K
Health promotion allows a person to control the determinants of health, resulting in an improved health status. It enhances the quality of life and reduces premature deaths. Health promotion and illness prevention programs help people make beneficial choices to reduce the risk of disease and disabilities. There are three health promotion and illness prevention levels: primary, secondary, and tertiary prevention.
In primary prevention, actions taken before disease onset prevent the disease from...
In primary prevention, actions taken before disease onset prevent the disease from...
12.7K
Community Based Intervention
620
Community-based interventions in mental health represent a paradigm shift from institution-centered care to treatments embedded within the fabric of local communities. By prioritizing inclusion and leveraging existing societal structures, this approach fosters a supportive environment conducive to addressing mental health challenges while promoting individual dignity and agency.
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
620
Models of Health Promotion and Illness Prevention II
2.1K
The person's health status fluctuates continually, varying from being in good health to becoming ill and returning to being healthy. To understand the concept of illness prevention, there are two models. First, the health-illness continuum model is a graphic representation of an individual's wellness. It states that a person is considered healthy in the absence of physical disease and the presence of good emotional health.
The agent-host-environment model states that disease results...
The agent-host-environment model states that disease results...
2.1K

