장기간 환기역치 운동이 심부전증 환자치료에 미치는 효과에 관한 연구 = The Study of Ventilatory Threshold Exercise Training on Heart Failure Patients

다국어 초록 (Multilingual Abstract)

The purpose of this study was to assess the feasibility and the effect of a long-term ventilatory threshold exercise training program on heart failure patients. The subjects were 20 patients who were divided into control and exercise group. They are mean aged from 61.5yr to 53.3yr. mean New York heart association (HYHA) class fromⅠto Ⅱ, mean left ventrical end-diastolic volume(LVED) from 123 to 123ml, mean ejection fraction (EF) from 39.9% to 38.4%, and mean V˙O_2max from 25.6ml/kg/min respectively. The underwent 6 weeks ventilatory threshold exercise training program which consisted of the workload was V˙O_2 at ventilatory threshold for 30 minutes as day at 3 times per week. Before and after exercise training program, V˙O_2, V˙CO_2 LVED volume and length, left ventrical end-systolic(LVES) volume and length, and ejection fraction were measured. Statistical analysis were performed using analysis of variance T-test and paired t-test.
The results of this study are followings. After exercise training program, there were significantly differences in submaximal and maximal exercise performance, V˙O_2 at ventilatory threshold, V˙O_2max, and V˙Emax between control and exercise group respectively (p<0.05). Significantly differences between two groups were also found in left ventrical end-diastolic volum(LVESV) and ejection fraction (EF)(p<0.01). NYHA class also improved form a mean or 2.5 to 1.5(p<0.01).
In conclusion, this study showed that the venilatory threshold exercise training program is useful method of clinical application for chronic heart failure.