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Updated: Aug 9, 2026

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
Published on: March 7, 2019
Self-reported injury and physical activity levels: United States 2000 to 2002
Susan A Carlson1, Jennifer M Hootman, Kenneth E Powell
1National Centers for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA 30345, USA. scarlson1@cdc.gov
Purpose:
The aim of the study is to compare national estimates of the incidence of self-reported all-cause and activity-specific injuries in adults with differing leisure-time physical activity levels.
Methods:
Data were analyzed from the 2000 to 2002 National Health Interview Survey. Leisure-time physical activity levels were categorized as active, insufficiently active, and inactive.
Results:
Age-adjusted incidences of all-cause injury did not differ by leisure-time physical activity level (active, 89.3/1000; 95% confidence interval [CI], 81.8-96.8; insufficiently active, 81.6/1000; 95% CI, 73.1-90.1; and inactive, 86.3/1000; 95% CI, 78.6-93.9). Active respondents (29.4/1000; 95% CI, 25.2-33.6) had a greater incidence of injury related to sport and leisure-time activities than inactive respondents (15.2/1000; 95% CI, 12.1-18.3), whereas inactive respondents (71.1/1000; 95% CI, 63.9-78.2) had a greater incidence of injury related to nonsport and non-leisure-time activities than active respondents (59.9/1000; 95% CI, 53.6-66.2). Results were unchanged after multivariate control for confounding factors.
Conclusions:
Although the incidence of sport and leisure-time injuries is associated with participation in leisure-time physical activity, no association was observed between leisure-time physical activity and overall injuries.
