Related Experiment Video
Updated: Dec 22, 2025

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
Published on: March 7, 2019
Trends in Total Physical Activity Time, Walking, and Vigorous Physical Activity Time in Queensland Adults From
Background:
Health benefits of physical activity (PA) accrue with small increases in PA, with the greatest benefits for those transitioning from inactivity to any level of PA. This study examined whether self-reported PA time in Queensland adults changed between 2004 and 2018.
Methods:
The Queensland government conducts regular cross-sectional telephone surveys. Between 2004 and 2018, adults aged 18-75 years answered identical questions about their weekly minutes of walking, moderate PA, and vigorous PA. Hurdle regression estimated the average annual change in weekly minutes of PA overall and by activity type, focusing on sociodemographic differences in trends.
Results:
The sample size averaged 1764 (2004-2008) and 10,188 (2009-2018), totaling 107,171 participants aged 18-75 years. Unadjusted PA increased by 10 minutes per week per year (95% confidence interval [CI], 8.8-11.1) overall, with increases for most subgroups. Adjusted PA increased by 10.5 minutes per week per year (95% CI, 9.4-11.7). Trends differed by employment-employed adults and those not in the labor force increased by 14.3 (95% CI, 12.8-15.8) and 2.2 minutes per week per year (95% CI, 0.4-4.0), respectively, with no increase for unemployed adults. The increases were due to both an increased prevalence of doing any activity and an increased average duration among active adults.
Conclusions:
Since 2004, PA time has increased for Queensland adults, with substantial variability by employment status.
Related Concept Videos
Lifestyle Factors and Health
Benefits of Physical Activity
Physical activity, whether through structured exercise or casual activities like walking, biking, or dancing, is a cornerstone of a...
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be...
Physical Assessment of the Respiratory Tract I: Health History
Subjective Data
Subjective data provides vital information about the patient's health history and symptoms. This data is typically collected through interviews in which patients describe their experiences, symptoms, and concerns.
Health history and...
Factors Affecting Activity Coefficient
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
Changes in the Appendicular Skeleton with Age
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...

