| Sang Jae Lee | 2 Articles |
Objective
To investigate the effect of type D personality on cardiac rehabilitation (CR) participation rates and the effect of a short-term CR program. Methods Study participants included patients diagnosed with acute coronary syndrome who underwent percutaneous coronary intervention. Patients completed the Type D personality Scale (DS-14) and the Hospital Anxiety and Depression Scale (HADS) at program entry. Subjects were recommended participation in 6 weeks of CR exercise training. Cardiopulmonary exercise test (CPET) was conducted before and after completion of the training. CR participation refers to completion of the 6-week CR exercise program and performance of the secondary CPET. Drop-out refers to the subjects who were unable to participate in the 6-week CR exercise program or to perform the secondary CPET. Results At baseline, type D personality was evident in 21 of 63 patients (33.3%). Type D patients were more often depressed (57.1%) and anxious (38.1%) than non-type D patients (31.0% and 9.5%, respectively). At baseline, participants with type D personality showed a decreased body mass index (24.6 vs. 26.1 kg/m2, p=0.025). The type D group displayed a lower CR participation rate (5/21, 23.8%) compared with the non-type D group of (22/42, 52.4%). Logistic regression analysis revealed the association of type D personality with CR drop-out rate (odds ratio=3.87; 95% confidence interval, 1.2–12.5; p<0.05). Conclusion Type D personality was independently associated with drop-out from CR program and with significantly higher levels of anxiety and depressive mood. Citations Citations to this article as recorded by
To compare and analyze the effects of cardiac rehabilitation (CR) in two groups based on the peak respiratory exchange ratio (RERpeak) 1.1 values using the exercise tolerance test (ETT) results, and to investigate the reasons for early termination of ETT. Patients with acute coronary syndrome who participated in CR exercise training were selected and all subjects underwent 6 weeks of CR exercise training. ETT was performed on a treadmill using a Modified Bruce Protocol before and after CR exercise training. According to the result of the first ETT, the subjects were divided into two groups: those with an RERpeak≥1.1 (n=33) and those with an RERpeak<1.1 (n=22). We investigated the reasons for ETT termination and compared the effect of CR between the groups. The reasons for the early termination of the first ETT in the RERpeak<1.1 group were subjective dyspnea, abnormal cardiovascular responses, leg fatigue and other problems. After a 6-week CR, the peak oxygen consumption (VO2peak) and ETT time increased, and the rate of perceived exertion (RPE) and RPP (rate pressure product) at stage 3 decreased in both the RERpeak<1.1 and RERpeak≥1.1 groups. CR exercise training improved exercise capacity, not only in the RERpeak≥1.1 group, but also in the RERpeak<1.1 group. This means that patients with a lower exercise tolerance could also benefit from the effects of CR. Thoughtful consideration to identify the direct and indirect causes for the early termination of ETT would be necessary to improve the efficiency of CR. Citations Citations to this article as recorded by
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