Quantifying time spent outdoors: A versatile method using any type of global positioning system (GPS) and accelerometer devices von Liu, Wei, Chambers, Timothy, Clevenger, Kimberly A, Pfeiffer, Karin A, Rzotkiewicz, Zachary, Park, Hyunseo, Pearson, Amber L

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Influence of socio-economic status on habitual physical activity and sedentary behavior in 8- to 11-year old children von Drenowatz, Clemens, Eisenmann, Joey C, Pfeiffer, Karin A, Welk, Greg, Heelan, Kate, Gentile, Douglas, Walsh, David

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Validation and Calibration of an Accelerometer in Preschool Children von Pate, Russell R., Almeida, Maria J., McIver, Kerry L., Pfeiffer, Karin A., Dowda, Marsha

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Sociodemographic disparities in sedentary time among US youth vary by period of the day von Santiago-Rodríguez, María Enid, Chen, Jinsong, Pfeiffer, Karin A, Marquez, David X, Bustamante, Eduardo Esteban

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Motor Skill Performance and Physical Activity in Preschool Children von Williams, Harriet G, Pfeiffer, Karin A, O'Neill, Jennifer R, Dowda, Marsha, McIver, Kerry L, Brown, William H, Pate, Russell R

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Exploring Metrics to Express Energy Expenditure of Physical Activity in Youth von McMurray, Robert G, Butte, Nancy F, Crouter, Scott E, Trost, Stewart G, Pfeiffer, Karin A, Bassett, David R, Puyau, Maurice R, Berrigan, David, Watson, Kathleen B, Fulton, Janet E

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Determining independence and associations among various cardiovascular disease risk factors in 9-12 years old school-children: a cross sectional study von Alaqil, Abdulrahman I, Petushek, Erich J, Gautam, Yuba R, Pfeiffer, Karin A, Carlson, Joseph J

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Developmental disparities in sedentary time by period of the day among US youth: a cross-sectional study von Santiago-Rodríguez, María Enid, Chen, Jinsong, Pfeiffer, Karin A., Marquez, David X., Odoms-Young, Angela, Bustamante, Eduardo Esteban

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Protocol for a multicenter-cluster randomized clinical trial of a motor skills intervention to promote physical activity and health in children: the CHAMP afterschool program study von Robinson, Leah E, Palmer, Kara K, Santiago-Rodríguez, María Enid, Myers, Nicholas D, Wang, Lu, Pfeiffer, Karin A

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Policies and Characteristics of the Preschool Environment and Physical Activity of Young Children von Dowda, Marsha, Brown, William H, McIver, Kerry L, Pfeiffer, Karin A, O'Neill, Jennifer R, Addy, Cheryl L, Pate, Russell R

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Study of active neighborhoods in Detroit (StAND): study protocol for a natural experiment evaluating the health benefits of ecological restoration of parks von Pearson, Amber L, Pfeiffer, Karin A, Gardiner, Joseph, Horton, Teresa, Buxton, Rachel T, Hunter, Ruth F, Breeze, Victoria, McDade, Thomas

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Physical Activity Among Children Attending Preschools von Pate, Russell R, Pfeiffer, Karin A, Trost, Stewart G, Ziegler, Paula, Dowda, Marsha

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Effectiveness of the fun for wellness online behavioral intervention to promote well-being and physical activity: protocol for a randomized controlled trial von Myers, Nicholas D, Prilleltensky, Isaac, Lee, Seungmin, Dietz, Samantha, Prilleltensky, Ora, McMahon, Adam, Pfeiffer, Karin A, Ellithorpe, Morgan E, Brincks, Ahnalee M

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Feelings of safety during daytime walking: associations with mental health, physical activity and cardiometabolic health in high vacancy, low-income neighborhoods in Detroit, Michi... von Pearson, Amber L, Clevenger, Kimberly A, Horton, Teresa H, Gardiner, Joseph C, Asana, Ventra, Dougherty, Benjamin V, Pfeiffer, Karin A

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Validation and Comparison of Accelerometers Worn on the Hip, Thigh, and Wrists for Measuring Physical Activity and Sedentary Behavior von Montoye, Alexander H K, Pivarnik, James M, Mudd, Lanay M, Biswas, Subir, Pfeiffer, Karin A

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Intervention to increase physical activity and healthy eating among under-represented adolescents: GOAL trial protocol von Robbins, Lorraine B, Ling, Jiying, Pfeiffer, Karin A, Kerver, Jean M, Resnicow, Kenneth, McCaffery, Harlan, Hilliard, Aisha, Hobbs, Logan, Donald, Sheldon, Kaciroti, Niko

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Sex differences in physical activity engagement after ACL reconstruction von Kuenze, Christopher, Lisee, Caroline, Pfeiffer, Karin A., Cadmus-Bertram, Lisa, Post, Eric G., Biese, Kevin, Bell, David R.

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Descriptive analysis of preschool physical activity and sedentary behaviors - a cross sectional study of 3-year-olds nested in the SKOT cohort von Møller, Niels Christian, Christensen, Line B, Mølgaard, Christian, Ejlerskov, Katrine T, Pfeiffer, Karin A, Michaelsen, Kim F

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Comparison of Accelerometer Cut Points for Predicting Activity Intensity in Youth von TROST, Stewart G, LOPRINZI, Paul D, MOORE, Rebecca, PFEIFFER, Karin A

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Evaluation of the activPAL accelerometer for physical activity and energy expenditure estimation in a semi-structured setting von Montoye, Alexander H.K, Pivarnik, James M, Mudd, Lanay M, Biswas, Subir, Pfeiffer, Karin A

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