The Built Environment and Location-Based Physical Activity

International Physical Activity Questionnaire: 12-Country Reliability and Validity

Cora L. Craig, Alison L. Marshall, Adrian Bauman et al. · Medicine & Science in Sports & Exercise · 2003 · 21.6K citations

Education, Kinesiology, Exercise Testing +14

Physical Activity in the United States Measured by Accelerometer

Richard P. Troiano, David Berrigan, Kevin W. Dodd et al. · Medicine & Science in Sports & Exercise · 2008 · 7.7K citations

Public Health, Child Health, Adolescent Health +14

Introductory digital image processing: A remote sensing perspective

John R. Jensen, Kalmesh Lulla · Geocarto International · 1987 · 5.1K citations · Full text

Social Sciences, Earth Sciences, Geography +13

Calibration of the Computer Science and Applications, Inc. accelerometer

Patty S. Freedson, Edward L. Melanson, John R. Sirard · Medicine & Science in Sports & Exercise · 1998 · 3.9K citations

Education, Kinesiology, Exercise Physiology +16

Amount of Time Spent in Sedentary Behaviors in the United States, 2003-2004

Charles E. Matthews, Kong Y. Chen, Patty S. Freedson et al. · American Journal of Epidemiology · 2008 · 2.7K citations · Full text

Public Health, Health Behavior, Population Health Sciences +15