Related Experiment Video
Updated: Jun 8, 2026

05:59
Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
Published on: March 7, 2019
6.7K
Global Matrix 4.0 on Physical Activity for Children and Adolescents: Project Evolution, Process Evaluation, and
Iryna Demchenko1,2,3, Salomé Aubert3, Mark S Tremblay1,2,3,4
1Children's Hospital of Eastern Ontario Research Institute, Ottawa, ON, Canada.
Journal of Physical Activity & Health
|January 13, 2025
Summary
The Global Matrix 4.0 successfully evaluated child and adolescent physical activity (PA) worldwide, with high participant satisfaction. Recommendations include refining indicators and expanding scope for future Global Matrices.
Area of Science:
- Global health research
- Child and adolescent health
- Physical activity surveillance
Background:
- The Global Matrix initiative offers crucial data on worldwide child and adolescent physical activity (PA).
- Significant human and financial resources are necessary for its execution.
Purpose of the Study:
- To evaluate the process and outcomes of the Global Matrix 4.0.
- To analyze the evolution from previous Global Matrix editions.
- To provide recommendations for future Global Matrix initiatives.
Main Methods:
- A mixed-methods approach was employed, utilizing qualitative and quantitative data.
- Online surveys were administered to participants.
- Online user activity metrics were analyzed using MailChimp and Google Analytics.
Main Results:
- 57 teams and 682 experts assessed PA status across numerous countries using standardized indicators.
- High participant satisfaction rates (>80%) were reported for participation, outputs, and project management.
- Key challenges identified included funding limitations and insufficient national PA data; suggestions focused on indicator refinement and scope expansion.
Conclusions:
- The Global Matrix 4.0 evaluation confirmed a positive participant experience and successful outcome achievement.
- Recommendations include revising core indicators and benchmarks.
- Expanding the initiative's scope and enhancing fundraising are crucial for optimizing resource use and impact.

