Validation study demonstrates face and discriminant validity of an exercise vital sign in clinical patients, suggesting utility for monitoring population-level physical activity.
We found that the EVS has good face and discriminant validity and may provide more conservative estimates of PA behavior when compared with national surveys. The EVS has the potential to provide information about the relationship between exercise and health care use, cost, and chronic disease that has not been previously available at the population level.
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Coleman et al. (2012) studied this question.
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