This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. In 1996, the Surgeon General's report of physical activity and health concluded that over 60% of Americans do not receive the recommended daily amount of physical exercise, and 25% of Americans are completely sedentary. At the same time, it is increasingly evident that there are substantial benefits of regular aerobic activity including decreased risk for developing diabetes, decreased risk of developing colon cancer, reductions in depression and anxiety, weight control, the building and maintenance of healthy bones, muscles, and joints, and decreased overall risk of dying prematurely. Thus, increasing regular physical activity is a public health priority. The goal of this project is to better understand why some people exercise while others do not. We will do this by trying to identify individuals who have a negative (or less positive) physiological and/or psychological response to exercise. The long-term goal is to use this information to develop and implement interventions to increase exercise behavior among those who do not currently exercise, and to target more intensive interventions to those who are predisposed to have a less positive response to exercise.
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