Directly measured physical activity of children and youth, 2012 and 2013 - ARCHIVED

In the article Directly measured physical activity of children and youth, 2012 and 2013, the text referring to the percentage of children meeting the physical activity guidelines or meeting other daily physical activity criteria was revised. The original text suggested that adherence to the Physical Activity Guidelines or other physical activity criteria was based on an individual's average daily level of physical activity. The following statements have been updated:In school-aged children and youth between the ages of 5 and 17, 13% of boys and 6% of girls were accumulating at least 60 minutes of moderate-to-vigorous physical activity daily as recommended in the guidelines (Chart 1).Furthermore, although the vast majority of 5- to 11-year-olds did not meet the physical activity guidelines, 39% achieved at least 30 minutes of moderate-to-vigorous physical activity daily (Chart 3). In 12- to 17-year-olds, 18% achieved at least 30 minutes.The revised text better reflects the fact that the percent of the population adhering to a given criteria was determined by: a) calculating an individual's probability of meeting the criteria from individual daily values, and then b) computing the weighted average of the individual probabilities.