Innovative strategies to increase physical activity levels of cardiac rehabilitation patients

Project: Research


  • Leonard A Kaminsky (PI)


It is well established that cardiac patients can obtain favorable cardiovascular outcomes and have reduced mortality if they obtain a sufficient amount of physical activity (PA) on a regular basis. It has also been demonstrated recently that although cardiac patients benefit from rehabilitation programs, they typically do not achieve recommended amounts of PA solely through participation in these programs. Recently, behavior change strategies to increase individuals PA have been promoted and researched. Patients with chronic diseases, including coronary heart disease, are among the populations, which have not been adequately studied. The AHA Scientific Statement recommends studies using multiple behavioral approaches, such as feedback from PA monitors and stage-of-change, would add valuable information to the scientific literature on PA interventions. Accordingly, the specific aims related to this proposal are: Specific Aim 1:to test a comparison between different interventions designed to increase PA levels in cardiac patients outside of a cardiac rehabilitation (CR) program. The methods examined will include: 1) usual care home exercise recommendations; 2) immediate continuous pedometer only feedback intervention; 3) motivationally-matched feedback interventions; and 4) the combined effects of both 2 and 3. Specific Aim 2: to evaluate if changes in PA levels differ between demographic subgroups which will include comparisons between men and women; employed and retired; MI/PCI and CABG. Specific Aim 3: to evaluate if changes in PA levels result in improvements in cardiovascular health.The End-points/Expected Outcomes to be achieved are: to determine if cardiac patients attending CR that receive PA feedback will have higher levels of PA on days they do not attend CR than patients who receive usual care recommendations for home exercise; and if cardiac patients who achieve higher levels of PA will have improvements in selected health, function, and quality of life measures.This will be the first study to investigate targeted interventions to increase PA levels of cardiac patients beginning a long-term maintenance CR program in a methodologically rigorous manner. The long-term goals of this line of research are to determine if regular PA feedback is necessary to maintain increased PA levels and if dose-response relationships exist between PA (both total amount and time at or above moderate intensity) and cardiac health related outcome measures.
Award amount$141,950.00
Award date07/01/2009
Program typeGrant-in-Aid
Award ID09GRNT2390048
Effective start/end date07/01/200906/30/2011