But if you asked the parents of the inactive children to describe their child’s activity level，the vast majority—80 percent—described their children as fairly or very physically active，according to the findings published in the American Journal of Preventive Medicine.Interestingly，the children themselves had more awareness about their lack of physical activity.Overall,40 percent of children overestimated their physical activity.

　　But it wasn’t the parents of overweight children who were most likely to guess wrong about physical activity levels.The parents who were most out of touch about their child’s physical fitness were more likely to have children who were slim.Parents of girls were also more likely to overestimate physical activity.The researchers noted that parents should be educated about the importance of physical activity for children even if the child is not overweight.

　　“Parents of slim children appear to assume that their children are adequately

　　active，”

　　the study authors reported.“Increasing awareness regarding health benefits of physical activity beyond weight control might help have a correct idea of physical activity levels and encourage behavior change.”

　　54．According to the Speedy study，what kind of children can be judged physically inactive?

　　A．Slim children.

　　B．Children with less than an hour a day of physical activity.

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