Background: In 2005, investigators convened by the National Cancer Institute recommended
development of standardized protocols for accelerometer use and reporting decision rules in …

The use of physical activity monitors in population-based research has increased
dramatically in the past decade. In this report we review the major purpose for using physical …

Background Identifying modifiable risk factors is essential to reduce the prevalence
adolescent depression. Self-report data suggest that physical activity and sedentary …

Abstract The Avon Longitudinal Study of Parents and Children (ALSPAC) is a
transgenerational prospective observational study investigating influences on health and …

Purpose.: Timespent in “sports/outdoor activity” has shown a negative association with
incident myopia during childhood. We investigated the association of incident myopia with …

As modern lifestyles offer ever more opportunities for a sedentary existence, physical activity
has become, for many, a marginal aspect of life. Too little physical activity is linked to …

Despite much progress with physical activity assessment, the limitations concerning the
accurate measurement of physical activity are often amplified in young people due to the …

Background To test for cross-sectional (at age 11) and longitudinal associations between
objectively measured free-living physical activity (PA) and academic attainment in …

Because of the diversity in available questionnaires, it is not easy for researchers to decide
which instrument is most suitable for his or her specific demands. Therefore, we …

Quality Control and Data reduction procedures for accelerometry-derived measures of physical
activity Page 1 Article Component of Statistics Canada Catalogue no. 82-003-X Health …