Child Development reports on a study indicating that preschoolers spent most of their time performing sedentary activities (89%).  They spent 8% of the day performing light physical activity and only 3% of the day doing moderately vigorous physical activity. 

Reference:  AU: William H. Brown, Karin A. Pfeiffer, Kerry L. McIver, Marsha Dowda, Cheryl L. Addy, Russell R. Pate

TI: Social and Environmental Factors Associated With Preschoolers' Nonsedentary Physical Activity

SO: Child Development

VL: 80

NO: 1

PG: 45-58

YR: 2009

CP: © 2009, Copyright the Author(s); Journal Compilation © 2009, Society for Research in Child Development, Inc.

ON: 1467-8624

PN: 0009-3920

AD: University of South Carolina; Michigan State University; East Carolina University; University of South Carolina

DOI: 10.1111/j.1467-8624.2008.01245.x

US: http://dx.doi.org/10.1111/j.1467-8624.2008.01245.x