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Purpose: Although hostility and depression have been linked to higher cardiac risk and poor prognosis of patients with coronary heart disease (CHD), there is a lack of research that studies how they may influence the short-term outcomes among patients participating in cardiac rehabilitation (CR). This study aimed to investigate the influence of hostility and depression on patients' exercise tolerance and improvement trajectory in a CR program over 6 weeks. Method: Participants were 142 patients with CHD, with a mean age of 62 years. Latent growth curve modeling was conducted to determine whether hostility and depression predicted patients' baseline exercise tolerance and rates of improvement on treadmill, while controlling for age and severity of illness. In addition, analysis was conducted to examine whether depression mediated the influence of hostility on exercise outcomes. Results: Patients with CHD with higher hostility scores had a lower baseline exercise tolerance and slower rates of improvement over 6 weeks. Depressive symptom severity mediated the influence of hostility on exercise baseline and improvement. Patients with higher hostility were more likely to have more severe depressive symptoms, which in turn were associated with lower baseline exercise tolerance and slower improvement. Conclusion: While both hostility and depression predicted the exercise outcomes in CR, depression explained the influence of hostility. The findings underscore the importance of addressing psychosocial issues in treatment of CHD patients and provide support for psychosocial interventions in CR to facilitate patients' recovery. [ABSTRACT FROM AUTHOR]

The purpose of this pilot study is to evaluate the effectiveness of the Lifestyle Change Program (LSCP). LSCP was a holistic cardiac rehabilitation (CR) intervention focusing on several psychosocial and biological predictors of coronary heart disease including depression, hostility, low social support, high perceived stress, low spirituality, low life satisfaction, overall health status and cholesterol levels. Utilising a quasi-experimental design, overall health scores of LSCP patients were compared with those of a control group. To assess differences within-and between- groups, two (programme type) × 2 (age) × 2 (gender) × 2 (time) mixed design ANOVAs were used. Within-group relationships for psychosocial assessments and cholesterol levels were analysed using paired-samples t-tests. Results suggest that there were no significant differences between the LSCP group and the control group with regard to overall health status. However, the LSCP participants reported significantly lower levels of depression and perceived stress, as well as significantly higher levels of life satisfaction and spirituality upon programme completion. In addition, lipid panels changed significantly: A significant decrease in total cholesterol, low-density lipoproteins and triglycerides, as well as a significant increase in high-density lipoproteins. These trends suggest that holistic CR may be effective at reducing biopsychosocial risk factors for future cardiac events. Future studies, utilising an experimental design, are necessary to determine whether holistic programmes are more effective than traditional programmes in the reduction of cardiac risk factors. [ABSTRACT FROM AUTHOR]