Abstract
The objective of this study was to examine population-based prevalence of walking in the United States among pregnant women. Objectively measured walking data on 197 pregnant women who participated in the National Health and Nutrition Examination Survey 2005-2006 were analyzed. In general, pregnant women showed a level of walking below the recommendation; most walking was at low-intensity levels. These findings suggest that walking, particularly at higher intensity than usual, should be promoted among pregnant women.