Related Experiment Video
Updated: May 20, 2026

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
Published on: March 7, 2019
Global physical activity levels: surveillance progress, pitfalls, and prospects.
Pedro C Hallal1, Lars Bo Andersen, Fiona C Bull
1Universidade Federal de Pelotas, Brazil. prchallal@gmail.com
Globally, over 31% of adults and 80% of adolescents are physically inactive. This physical inactivity is more prevalent in women, older adults, and high-income nations, highlighting a critical public health concern.
Area of Science:
- Public Health
- Epidemiology
- Global Health
Background:
- Effective non-communicable disease (NCD) prevention requires accurate data on physical activity levels and trends.
- Understanding global physical activity patterns is crucial for public health policy development.
Purpose of the Study:
- To report worldwide physical activity levels in adults and adolescents.
- To identify demographic and geographic variations in physical inactivity.
Main Methods:
- Analysis of physical activity data from 122 countries for adults (≥15 years).
- Analysis of physical activity data from 105 countries for adolescents (13–15 years).
- Calculation of prevalence and confidence intervals for physical inactivity.
Main Results:
- Globally, 31.1% of adults are physically inactive, with rates varying from 17.0% in Southeast Asia to approximately 43% in the Americas and Eastern Mediterranean.
- Physical inactivity increases with age, is higher in women than men, and is more common in high-income countries.
- 80.3% of adolescents (13–15 years) do not meet recommended daily physical activity guidelines; boys are more active than girls.
Conclusions:
- Significant global physical inactivity exists among both adults and adolescents.
- Targeted interventions are needed, considering age, sex, and socioeconomic factors.
- Improved physical activity monitoring is essential for guiding effective NCD prevention strategies.
Related Concept Videos
Principles of Disease Surveillance
Levels of Health Promotion and Illness Prevention
In primary prevention, actions taken before disease onset prevent the disease from...
Types of Global Positioning System Surveys
Levels of Use of a GIS
Models of Health Promotion and Illness Prevention II
The agent-host-environment model states that disease results from...
Models of Health Promotion and Illness Prevention I
The health belief model (HBM) attempts to predict health-related behavior in specific belief patterns. According to the HBM, a person's...

