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To evaluate the effectiveness of mindfulness-based stress reduction (MBSR) combined with aerobic training on treatment adherence, kinesiophobia, heart rate variability (HRV), exercise tolerance, and psychological stress response in patients with coronary heart disease (CHD) post-percutaneous coronary intervention (PCI).
Post-PCI patients (n = 150) were randomly assigned to an observation group (receiving combined MBSR and aerobic training) and a control group (receiving aerobic training only). Treatment adherence, the Tampa Scale for Kinesiophobia-Heart (TSK-SV Heart), HRV parameters, exercise tolerance, and psychological stress responses were assessed before and after the intervention. Psychological assessments included the Self-Rating Anxiety Scale (SAS) and the Self-Rating Depression Scale (SDS).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| observation group | Experimental | receiving combined MBSR and aerobic training |
|
| control group | No Intervention | receiving aerobic training only |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| observation group | Behavioral | Patients participated in 2-hour daily MBSR sessions conducted in a designated hospital rehabilitation room. After discharge, patients were instructed to continue weekly home-based practice for two months. The MBSR components included: (a) Mindful breathing: Conducted in a quiet, comfortable, and distraction-free environment with the patient seated upright, shoulders and neck relaxed. Patients were guided to focus on their breath, feeling the sensation of air flowing in and out, for 10 to 15 minutes per session, 2 to 3 times daily. If thoughts or emotions arose during the session, attention was gently redirected to the breath. (b) Mindfulness meditation: Also performed in a quiet setting, patients were guided to adopt an accepting attitude toward negative emotions without resistance or avoidance. The goal was to allow emotions to arise and naturally dissipate. Each session lasted 20 to 30 minutes, once or twice daily. (c) Body scanning: Patients were guided to assume a comfortable postu |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Depression Symptoms | The SDS is a 20-item self-rating scale used to assess the severity of depressive symptoms. Each item is scored on a 4-point Likert scale. Total scores range from 20 to 80. Scores below 53 are considered normal; higher scores indicate more severe depression. The sample size calculation (n=150) was based on an estimated effect size (Cohen's d) of 0.54 for this measure. | Baseline (pre-intervention) and immediately post-intervention (after 8 weeks). |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Anxiety Symptoms | The SAS is a 20-item self-rating scale assessing anxiety severity. Scores range from 20 to 80. Scores below 50 are considered normal; higher scores reflect more severe anxiety. | Baseline and post-intervention (8 weeks). |
| Change in Treatment Adherence Score |
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Inclusion Criteria:
Successful percutaneous coronary intervention (PCI) procedure
No contraindications to rehabilitation exercise
Provision of written informed consent by the patient and their legal guardian
Exclusion Criteria:
Malignancy (active or history of cancer within recent years)
Cognitive impairment (sufficient to preclude understanding or compliance with mindfulness-based stress reduction or exercise instructions)
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Linyi People's Hospital | Linyi | Shandong | 276000 | China |
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Assessed using a self-developed questionnaire tailored to the combined MBSR and aerobic training protocol. The questionnaire covers medication adherence (6 items), exercise participation (4 items), mindfulness practice (5 items), and routine follow-up (5 items). Each item uses a 5-point Likert scale. Total scores range from 0 to 100, with higher scores indicating better adherence. |
| Baseline and post-intervention (8 weeks). |
| Change in Kinesiophobia Level | Measured using the Tampa Scale for Kinesiophobia-Heart (TSK-SV Heart). This 15-item scale includes domains of fear of injury, perceived decline in physical function, avoidance of physical activity, and perceived cardiac risk. Items are scored on a 4-point Likert scale (1=strongly disagree to 4=strongly agree). Total score >37 indicates clinically significant kinesiophobia. Higher scores indicate greater fear of movement. | Baseline and post-intervention (8 weeks). |
| Change in Standard Deviation of Normal-to-Normal RR Intervals | SDNN (ms) is a time-domain measure of HRV reflecting overall autonomic function. Measured using an electrocardiographic analyzer (ECG1200G) after 5 minutes of seated rest. | Baseline and post-intervention (8 weeks). |
| Change in Standard Deviation of Average Normal-to-Normal RR Intervals in 5-minute Segments | SDANN (ms) reflects long-term components of HRV. Measured using an electrocardiographic analyzer. | Baseline and post-intervention (8 weeks). |
| ID | Term |
|---|---|
| D003327 | Coronary Disease |
| D000092442 | Kinesiophobia |
| ID | Term |
|---|---|
| D017202 | Myocardial Ischemia |
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
| D014652 | Vascular Diseases |
| D010698 | Phobic Disorders |
| D001008 | Anxiety Disorders |
| D001523 | Mental Disorders |
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