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Measuring the way people vary across time in meeting recommended levels of physical activity should be a fundamental component of public health surveillance. However, we were unaware of prospective cohort studies that had examined this in a population base using convergent measures.We examined agreement between two validated measures used to estimate periodic change in the rate of meeting U.S. Healthy...
Background Predicting variation in meeting recommended levels of physical activity is important for public health evaluation. Purpose The purpose of this study is to determine the predictive value of stages of the Transtheoretical Model (TTM) for classifying people who meet the US Healthy People 2010 guideline for regular physical activity. Methods A cohort (N = 497) from a random, multiethnic...
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