Author + information
- Li Weijie,
- Wenjuan Zhou,
- Xiaoling Li,
- Huanji Zhang,
- Guifu Wu and
- Xinxia Zhang
To observe and evaluate the effects of enhanced external counterpulsation (EECP) or exercises instruction on improving quality of life and exercise tolerance in patients with coronary heart disease.
Patients with coronary heart disease were selected from Shenzhen Futian Hospital Cardiology Department within one year (Feb.2015-Feb.2016). All patients were given standard medical therapy for coronary heart disease and allocated into two groups -- EECP group and exercise group. EECP group (n=42) underwent EECP therapy (one hour each day, 36 hours in total) while exercise group (n=48) accepted instruction on two phases of physical exercises. Both two groups filled in Quality of Life Form(SF-36) and participated in the six-minute walking test (6MWT) before and after the 9-week intervention. Epidata3.0 and SPSS 20.0 were used in data analysis.
(1) Before the intervention both groups of patients showed no significant difference (P > 0.05) in age, gender composition, body mass index, cardiac functional grading, smoking history and combined hypertension and (or) diabetes and (or) hyperlipidemia. (2) Scores of SF-36 and 6MWT in both groups after the 9-week intervention were lower than the scores before the intervention by self-comparison (P<0.05), which indicated both EECP and exercises instruction could improve patients' life quality and their tolerance for physical exercises. (3)Statistics of each group before and after the intervention were analyzed respectively. Before the intervention, EECP group had worse quality of life with lower scores of SF-36 than exercise group did (t1=-2.27,P1<0.05). 6MWT statistics show no significant difference between the two groups(t=1.06, P>0.05). Differently, after the 9-week intervention, the results of SF-36(t=-4.07,P<0.05) and 6MWT (t=5.20,P<0.05) in EECP group were better than that in exercise group. This suggested that patients in EECP group had better quality of life and exercise tolerance.
Both EECP and exercises instruction can improve the quality of life and exercise tolerance in patients with coronary heart disease, but the effects of EECP are better than that of exercises instruction.