| Samenvatting (Engels) | The consequences of cardiovascular diseases are substantial and include increasing numbers of morbidity and mortality. With a population getting more and more inactive and having a sedentary lifestyle, the risk for cardiovascular disease and type 2 diabetes rises.
This dissertation reports on people with one or more cardiovascular risk factor(s) and who are having an inactive lifestyle, and how healthcare professionals can encourage these people at risk to become and stay physically active in a way that cardiovascular fitness is improved. The assumption is that if an intervention can reduce the prevalence of risk factors, it can also reduce the prevalence of disease. When cardiovascular fitness improves
and a person is capable of keeping a physically active lifestyle, levels and number of cardiovascular risk factors can decrease in a population.
The dissertation started in chapter 1 with a general introduction about the importance of cardiovascular risk factors, aims of the dissertation and the outline. The dissertation has three parts. In part one the association between cardiovascular risk factors, physical activity and physical fitness was described. In addition, the predictors of physical active lifestyle behavior of patients with one or more cardiovascular risk factors were
described, meaning the intention to engage in physical activity and their actual physical active behavior. In part one also the predictors of encouraging professional behavior for healthcare professionals were described, meaning the intention to encourage patients with cardiovascular risk factors to become physically active and the corresponding behavior.
The aim of part one was to study patients with cardiovascular risk factors and their expected lack of physical activity and physical fitness, causing high cardiovascular morbidity and diabetes type 2 rates. The aim was also to study the predicators of intention, behavior, physical activity and physical fitness for people with cardiovascular risk factors to stay physically active for one hour a day. The final aim of part one was to study the predictors of the intention to encourage patients with cardiovascular risk factors to become physical active and the subsequent behavior of healthcare professionals.
In part two of this dissertation we described the stability of social-cognitive determinants over time. We described if social-cognitive determinants are indeed, as predicted, stable over time. Next to testing the stability of social-cognitive determinants, we studied the interdependence of social-cognitive determinants. In part two we studied in a longitudinal design, the stability and the interdependence of the social-cognitive determinants over time.
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