Silvia A. GonzálezJoel D. BarnesPatrick Abi NaderDolores Susana Andrade TenesacaJavier Brazo-SayaveraKarla I. GalavizMarianella Herrera-CuencaPiyawat KatewongsaJuan López-TaylorYang LiuBilyana MilevaAngélica María Ochoa AvilésDiego Augusto Santos SilvaPairoj SaonuamMark S. TremblayShanghai University of SportThai Health Promotion Foundation, BangkokUniversity of CuencaUniversidad de la RepublicaUniversidad de Los Andes, ColombiaRollins School of Public HealthChildren's Hospital of Eastern Ontario, OttawaUniversidade Federal de Santa CatarinaMahidol UniversityUniversite de MonctonUniversity of MontrealUniversidad de GuadalajaraUniversidad Central de VenezuelaObservatorio Venezolano de la SaludBG be Active Association2019-08-232019-08-232018-11-01Journal of Physical Activity and Health. Vol.15, (2018), S284-S29715435476154330802-s2.0-85057088377https://repository.li.mahidol.ac.th/handle/20.500.14594/46232© 2018 Human Kinetics, Inc. Background: The Global Matrix 3.0 brings together the Report Card grades for 10 physical activity indicators for children and youth from 49 countries. This study describes and compares the Global Matrix 3.0 findings among 10 countries with high Human Development Index. Methods: Report Cards on physical activity indicators were developed by each country following a harmonized process. Countries informed their Report Cards with the best and most recent evidence available. Indicators were graded using a common grading rubric and benchmarks established by the Active Healthy Kids Global Alliance. A database of grades from the countries was compiled, and letter grades were converted to numerical equivalents. Descriptive statistics and scores for groups of indicators were calculated, and correlation analyses were conducted. Results: Grades for the 10 countries clustered around "D" ranging from "F" to "B+." Active Transportation had the highest average grade ("C"), whereas Overall Physical Activity had the lowest average grade ("D-"). Low grades were observed for both behavioral and sources of influence indicators. Conclusions: In the context of social and economical changes of high- Human Development Index countries, urgent actions to increase physical activity among children and youth are required. Surveillance and monitoring efforts are required to fill research gaps.Mahidol UniversityMedicineArticleSCOPUS10.1123/jpah.2018-0391