This study examined ischemic reactivity to a psychological stress protocol and whether psychological variables could reliably classify individuals as ischemic reactors. Participants were 54 male Veterans Administration patients who had or were suspected of having CAD. Psychological inventories were administered prior to a psychological stress protocol consisting of a surgical video, the Stroop Color–Word task, an arithmetic task, and discussion of a stressful event. Cardiac functioning was evaluated using an ECG Holter monitor and 23.53% of participants were classified as reactors. Mean differences between reactors and nonreactors were found for State Anger, Health Locus of Control—Powerful Others (MHLC-PO), and Depression. State Anger and MHLC-PO emerged as significant predictors of reactor status in logistic regression analyses. Models based on individual scale items suggested three items could be used to achieve higher classification rates. Implications for revising screening procedures for determining risk and possible mechanisms underlying psychological stress–induced ischemia are discussed. 相似文献
Objectives: Physical activity (PA) is a key factor in cardiovascular disease prevention. Through the Health Action Process Approach (HAPA), the present study investigated the process of change in PA in coronary patients (CPs) and hypertensive patients (HPs).
Design: Longitudinal survey study with two follow-up assessments at 6 and 12 months on 188 CPs and 169 HPs.
Main outcome measures: Intensity and frequency of PA.
Results: A multi-sample analysis indicated the equivalence of almost all the HAPA social cognitive patterns for both patient populations. A latent growth curve model showed strong interrelations among intercepts and slopes of PA, planning and maintenance self-efficacy, but change in planning was not associated with change in PA. Moreover, increase in PA was associated with the value of planning and maintenance self-efficacy reached at the last follow-up
Conclusions: These findings shed light on mechanisms often neglected by the HAPA literature, suggesting reciprocal relationships between PA and its predictors that could define a plausible virtuous circle within the HAPA volitional phase. Moreover, the HAPA social cognitive patterns are essentially identical for patients who had a coronary event (i.e. CPs) and individuals who are at high risk for a coronary event (i.e. HPs). 相似文献